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Paul Mitchell · Scalp Care Regeniplex

Scalp Care Regeniplex Shampoo

Shampoo / Clarifying, deep-cleaning

  • Shampoo
  • Sulfate-free
  • Lightweight
  • Vegan · label states
  • Cruelty-free · PETA-listed
Size10.14 fl oz
Priceabout $30commonly seen · 10.14 oz
Price / oz$2.96/ozat 10.14 oz

Scent:

Notes: herbal.

Manufacturer page: paulmitchell.com

Personal fit

Is this right for you?

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Upper-mid price for a shampoo

$2.96/oz at 10.14 oz — more than 74% of the 805 shampoos , which mostly run $0.81–3.01/oz. The cost less.

Price and stores

Great for

Colour-treated hairthat fades faster in a sulfate wash
Fast-oiling scalpsthat need a real reset wash
Hard waterand swimmers dealing with mineral deposit
Fine hairthat flattens under most products
Cuticle-smoothing pHa pH adjuster brings it to the acidic range hair prefers
Vegan and cruelty-freeour researched record has it as both

Maybe skip if

this product carries a scent
Curly-method routinesthese silicones need a detergent to remove
Very dry or damaged hairit contains fast-drying alcohol
Dry or damaged haira strong detergent system strips as it cleans
Tight budgetsit sits in the upper price tiers

Whether this much cleansing is right for you depends on how fast your scalp oils, how much product you layer, and your water — that is what the consultation works out.

What the formula actually does

Read from the label, not the marketing

Each row says where it comes from: F means we derived it from this product’s own ingredient list, S means it is a claim the brand makes that the formula neither confirms nor contradicts.

Cleansing strength Strong

Removes oil, buildup, and most residue — a reset wash.

Expected lather Moderate

An ordinary shampoo lather.

Slip and detangling Moderate

Conditioning agents are present, lower in the list.

Water-binding (humectants) Moderate

Humectants in the working part of the formula.

Scalp active None

No over-the-counter scalp active.

Hard-water defence Chelators present

Chelators are present — they bind hard-water and pool minerals.

Needs detergent to remove Yes

Water-insoluble silicones or waxes: a detergent wash is what removes them.

Protein Minor

Protein appears, low enough to be a supporting ingredient.

Fragrance Present

Fragrance is listed; it sits below the working ingredients.

from the formula stated by the brand reported by reviewers Scale: 1 dot low · 5 dots high, within this product type.

Ingredients that matter

The ingredients that change a decision

The workhorse ingredients plus anything lower down that changes a decision. These chips name what an ingredient does — they are not safety scores, and no ingredient here is rated good or bad on its own.

IngredientWhat it doesWhy it mattersChip
WaterWater (Aqua, Eau) solvent The base everything else is dissolved in Neutral
Sodium Cocoyl Isethionate mild anionic cleanser Cleanses
Sodium Methyl Cocoyl Taurate mild anionic cleanser Cleanses
Cocamidopropyl Hydroxysultaine amphoteric cleanser Cleanses
Disodium 2-Sulfolaurate cleanser Does the cleaning Cleanses
Sodium Methyl 2-Sulfolaurate cleanser Does the cleaning Cleanses
Sodium Lauryl Sulfoacetate mild anionic cleanser Cleanses
Acrylates Copolymer film former Lays down the film that holds a shape Holds
Divinyldimethicone/Dimethicone Copolymer silicone A little smoothing and shine Buildup
Pisum Sativum (Pea) Peptide protein A small amount of protein Protein
Leuconostoc/Radish Root Ferment Filtrate preservative Keeps the product from spoiling Stabilizes
Alcohol Denat.Alcohol drying alcohol A small amount, for fast drying Drying
What the list leaves out, and what it carriesThe list carries no sulfates. Fragrance is on the label. Water-insoluble silicones — needs a detergent wash to remove. Hard-water chelators are present.
Full ingredient list (42)

US labelling rules put ingredients above 1% in descending order of amount; below 1% they may be listed in any order. Annotations keep three readings separate: the ingredient's general function, its role in this product type, and what its position can support.

  • 1 Water · Water (Aqua, Eau)
    General function

    The base of almost every rinse-off and cream hair product. It carries everything else and is normally the first ingredient on the label.

    Leading ingredient

    Listed in the first three ingredients, it is likely a structural part of this formula.

    • solvent
  • 2 Sodium Cocoyl Isethionate
    General function

    A mild cleanser that gives a creamy lather and leaves hair less stripped than sulfates.

    Leading ingredient

    Listed in the first three ingredients, it is likely a structural part of this formula.

    May suitCurls or waves needing flexible hold

    The detergent class most curl routines are built around: it lathers and cleanses without stripping the strand back to bare.

    May suitDry, coarse, or high-porosity hair

    A gentler detergent leaves more of the surface oil that slows water loss from coarse or porous hair.

    May suitVery dry or highly damaged hair

    Cleanses with less sebum removal than a sulfate detergent, so hair that is short of moisture keeps more of it through the wash.

    • mild anionic cleanser
    • cleanser
  • 3 Sodium Methyl Cocoyl Taurate
    General function

    A mild cleanser that keeps foaming in hard water and rinses cleanly.

    Leading ingredient

    Listed in the first three ingredients, it is likely a structural part of this formula.

    May suitCurls or waves needing flexible hold

    The detergent class most curl routines are built around: it lathers and cleanses without stripping the strand back to bare.

    May suitDry, coarse, or high-porosity hair

    A gentler detergent leaves more of the surface oil that slows water loss from coarse or porous hair.

    May suitVery dry or highly damaged hair

    Cleanses with less sebum removal than a sulfate detergent, so hair that is short of moisture keeps more of it through the wash.

    • mild anionic cleanser
    • cleanser
  • 4 Cocamidopropyl Hydroxysultaine
    General function

    A mild co-cleanser that keeps foam stable in hard water.

    Supporting ingredient

    Listed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.

    May suitDry, coarse, or high-porosity hair

    Mild cleansing leaves more surface lubrication in place on hair that dries out quickly.

    May suitVery dry or highly damaged hair

    One of the mildest detergent classes. It is usually there to let a formula lather without a harsher detergent doing the work.

    May not suitBuild-up-sensitive routines

    The mildest detergents are also the least complete: a routine that deposits films needs something stronger periodically.

    • amphoteric cleanser
    • secondary cleanser
    • cleanser
  • 5 Disodium 2-Sulfolaurate
    General function

    A mild cleanser used with sodium methyl 2-sulfolaurate in gentle shampoo systems.

    Supporting ingredient

    Listed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.

    May suitBuild-up-sensitive routines

    Cleansing is what lifts deposited films off the strand. How completely depends on which detergent it is and how high on the list it sits.

    DependsVery dry or highly damaged hair

    Every detergent removes some sebum along with the product it is there to wash out. Which detergent it is matters more than that there is one.

    PubChem
    • cleanser
  • 6 Sodium Methyl 2-Sulfolaurate
    General function

    A mild cleanser that foams well in hard water, usually paired with disodium 2-sulfolaurate.

    Supporting ingredient

    Listed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.

    May suitBuild-up-sensitive routines

    Cleansing is what lifts deposited films off the strand. How completely depends on which detergent it is and how high on the list it sits.

    DependsVery dry or highly damaged hair

    Every detergent removes some sebum along with the product it is there to wash out. Which detergent it is matters more than that there is one.

    PubChem
    • cleanser
  • 7 Sodium Lauryl Sulfoacetate
    General function

    A moderate cleanser that foams well without the stripping reputation of sulfates.

    Supporting ingredient

    Listed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.

    May suitCurls or waves needing flexible hold

    The detergent class most curl routines are built around: it lathers and cleanses without stripping the strand back to bare.

    May suitDry, coarse, or high-porosity hair

    A gentler detergent leaves more of the surface oil that slows water loss from coarse or porous hair.

    May suitVery dry or highly damaged hair

    Cleanses with less sebum removal than a sulfate detergent, so hair that is short of moisture keeps more of it through the wash.

    PubChem
    • mild anionic cleanser
    • cleanser
  • 8 Acrylates Copolymer
    General function

    A hold polymer that forms a firm, humidity-resistant film. It is the usual source of a hard cast in gels.

    Supporting ingredient

    Listed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.

    May suitClimate-sensitive or frizz-prone hair

    A set polymer film is a physical barrier to humidity, so a style keeps its shape longer in damp conditions.

    May suitMaximum-hold styling

    Synthetic film formers dry into a continuous film, which is what holds a shape against movement and against humid air.

    DependsBuild-up-sensitive routines

    Some acrylate copolymers rinse with water and some need a detergent; the label alone does not say which one a formula used.

    • film former
    • polymer
  • 9 Divinyldimethicone/Dimethicone Copolymer
    General function

    A silicone network that forms a smoothing film with better staying power than plain dimethicone.

    Secondary ingredient

    Lower in the ordered portion of the list, it is more likely playing a supporting role than defining the formula.

    May suitClimate-sensitive or frizz-prone hair

    A surface film slows how quickly humidity reaches the cortex, which is what limits swelling-driven frizz in damp air.

    May suitFrizz-prone, damaged, or high-friction hair

    Lays a smooth film along the cuticle, which lowers combing friction and flattens the surface irregularities that read as frizz.

    May suitMaximum-hold styling

    Film formers are what hold a style: they dry into a connected film across the strands so the shape resists movement.

    • silicone
    • film former
  • 10 Glycol Distearate
    General function

    A wax that gives shampoo its pearly look and a slightly richer feel.

    Secondary ingredient

    Lower in the ordered portion of the list, it is more likely playing a supporting role than defining the formula.

    May suitFrizz-prone, damaged, or high-friction hair

    Emollients fill and smooth the surface of the strand, which lowers the friction that lifts the cuticle and reads as roughness.

    PubChem
    • opacifier
    • emollient
  • 11 Glycerin
    General function

    A small water-loving molecule that draws moisture into the hair and holds it there. It is the most common softening ingredient in conditioners and leave-ins.

    Secondary ingredient

    Lower in the ordered portion of the list, it is more likely playing a supporting role than defining the formula.

    May suitDry, coarse, or high-porosity hair

    High-porosity hair loses water fast; a humectant holds some of it in place for longer than the wash itself would.

    May suitVery dry or highly damaged hair

    Binds water into the outer layers of the strand, and water is what makes dry hair flexible again rather than brittle.

    DependsClimate-sensitive or frizz-prone hair

    Water moves both ways. Measured across concentrations, glycerin solutions give water up in some conditions and take it from the air in others. What it does for you depends on how much of it is there and on the air around it.

    Scientific Reports
    • humectant
  • 12 Melaleuca Alternifolia (TEA Tree) Leaf Water
    • botanical extract
  • 13 Pisum Sativum (Pea) Peptide
    General function

    A short-chain pea protein used for strength and body claims in vegan formulas.

    Secondary ingredient

    Lower in the ordered portion of the list, it is more likely playing a supporting role than defining the formula.

    DependsVery dry or highly damaged hair

    Unhydrolysed protein is too large to enter the strand. It sits on the surface, which is a coating effect rather than internal reinforcement.

    • protein
  • Below about this point, order stops being meaningful — these are typically used at 1% or less.
  • 14 Curcuma Longa (Turmeric) Root Extract
    • botanical extract
    • antioxidant
  • 15 Ganoderma Lucidum (Mushroom) Extract
    • botanical extract
  • 16 Panax Ginseng Root Extract
    • botanical extract
  • 17 Trifolium Pratense (Clover) Flower Extract
    • botanical extract
  • 18 Terminalia Ferdinandiana Fruit Extract
    • botanical extract
    • antioxidant
  • 19 Leuconostoc/Radish Root Ferment Filtrate
    • preservative
  • 20 Guar Hydroxypropyltrimonium Chloride
    General function

    A conditioning polymer made from guar bean gum. It deposits during rinsing, which is why sulfate shampoos can still leave hair soft.

    Estimated lower-concentration zone

    It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

    May suitCurls or waves needing flexible hold

    Gums thicken and set soft, which gives definition that bends rather than a rigid cast.

    May suitFrizz-prone, damaged, or high-friction hair

    Cationic conditioners bind to the negatively charged damaged cuticle, laying it flat and cutting the friction that causes combing breakage.

    May suitMaximum-hold styling

    A styling polymer dries into a film across the strands, which is what makes a shape hold instead of relax.

    • conditioning agent
    • polymer
    • gum
  • 21 Glycol Stearate
    General function

    A wax that makes shampoo look pearly and adds a slightly richer feel.

    Estimated lower-concentration zone

    It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

    May suitFrizz-prone, damaged, or high-friction hair

    Emollients fill and smooth the surface of the strand, which lowers the friction that lifts the cuticle and reads as roughness.

    PubChem
    • opacifier
    • emollient
  • 22 c12-13 alketh-3
    • emulsifier
  • 23 c12-13 alketh-23
    • emulsifier
  • 24 Alcohol Denat. · Alcohol
    General function

    Fast-drying alcohol used to make sprays set quickly. In leave-on products it can leave hair feeling dry, especially in high position on the list.

    Estimated lower-concentration zone

    It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

    May suitFine or easily flattened hair

    Evaporates on contact, which is how a spray sets almost instantly and leaves no weight behind it.

    PubChem
    • drying alcohol
    • solvent
  • 25 Sodium Chloride
    • salt
    • thickener
  • 26 Disodium EDTA
    General function

    Grabs metal ions from hard water so they cannot dull the hair or destabilise the formula.

    Estimated lower-concentration zone

    It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

    May suitBuild-up-sensitive routines

    Binds the calcium and magnesium in hard water, which is what stops mineral deposits accumulating on the strand wash after wash.

    May suitGray, silver, or brass-prone hair

    Copper and iron carried in tap water deposit on the strand and read as a dull, warm cast on gray or light hair. A chelator holds those metals in solution so the wash carries them off.

    PubChem
    • hard-water chelator
  • 27 Sodium Sulfate
    • salt
  • 28 Magnesium Nitrate
    • salt
  • 29 Magnesium Chloride
    • salt
  • 30 Citric Acid
    General function

    Used to bring the product to a slightly acidic pH, which helps the cuticle lie flat. It is almost always near the end of the list.

    Estimated lower-concentration zone

    It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

    May suitBuild-up-sensitive routines

    Holds hard-water minerals in solution so they rinse away instead of depositing on the hair.

    May suitFrizz-prone, damaged, or high-friction hair

    The acid side of pH adjustment, and the reason it matters is measured: alkaline formulas raise the fibre's surface negative charge, increase friction between strands and lift the scales, while lower-pH ones do the reverse.

    May suitGray, silver, or brass-prone hair

    Where a warm cast comes from water minerals rather than from the hair itself, holding those metals in solution is what removes it.

    International Journal of Trichology
    • pH adjuster
    • hard-water chelator
  • 31 Sodium Hydroxide
    General function

    A strong base used in trace amounts to raise pH; fully neutralised in the finished product.

    Estimated lower-concentration zone

    It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

    DependsFrizz-prone, damaged, or high-friction hair

    The alkali half of a pH-adjusting pair, used in small amounts to bring a formula up to its target rather than to make it alkaline. Alkaline conditions raise the fibre's surface charge and lift the scales — but the finished pH is not on the label.

    International Journal of Trichology
    • pH adjuster
  • 32 Phenoxyethanol
    • preservative
  • 33 Methylchloroisothiazolinone
    • isothiazolinone
    • preservative
  • 34 Methylisothiazolinone
    • isothiazolinone
    • preservative
  • 35 Fragrance · Fragrance (Parfum)
    General function

    An undisclosed blend of scent ingredients. Regulations let it stay unlisted, so a fragrance-free product is the only way to be certain what is not in it.

    Estimated lower-concentration zone

    It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

    May not suitFragrance-sensitive routines

    Declared fragrance. On a fragrance-sensitive routine this is the line that decides it, wherever it sits on the label.

    • fragrance
    • declared fragrance
  • 36 Linalool
    General function

    A floral fragrance component listed separately as a recognised contact allergen.

    Estimated lower-concentration zone

    It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

    May not suitFragrance-sensitive routines

    One of the 26 scent components the EU requires to be named individually above a threshold. It is named because it is a known contact allergen, not because it is unusual.

    PubChem
    • fragrance
    • named fragrance allergen
  • 37 Geraniol
    General function

    A rose-scented fragrance component, listed on its own because some people react to it.

    Estimated lower-concentration zone

    It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

    May not suitFragrance-sensitive routines

    One of the 26 scent components the EU requires to be named individually above a threshold. It is named because it is a known contact allergen, not because it is unusual.

    • fragrance
    • named fragrance allergen
  • 38 Linalyl Acetate
    General function

    A lavender-like fragrance component, related to linalool and listed for the same allergen reason.

    Estimated lower-concentration zone

    It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

    May not suitFragrance-sensitive routines

    One of the 26 scent components the EU requires to be named individually above a threshold. It is named because it is a known contact allergen, not because it is unusual.

    • fragrance
    • named fragrance allergen
  • 39 Pogostemon Cablin Oil
    General function

    Patchouli essential oil, used as an earthy fragrance note.

    Estimated lower-concentration zone

    It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

    May not suitFragrance-sensitive routines

    Essential oils are fragrance. Several carry constituents on the EU list of declared fragrance allergens, so a label with no fragrance line can still be a scented product.

    • botanical extract
    • essential oil
    • fragrance
  • 40 Camphor
    General function

    Produces a cooling, medicinal sensation on the scalp and contributes scent.

    Estimated lower-concentration zone

    It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

    May not suitFragrance-sensitive routines

    Declared fragrance. On a fragrance-sensitive routine this is the line that decides it, wherever it sits on the label.

    PubChem
    • fragrance
    • active
  • 41 Caramel
    General function

    A colour added to tint the product itself. It does not colour hair.

    Estimated lower-concentration zone

    It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

    May suitGray, silver, or brass-prone hair

    A violet or blue colorant sits opposite yellow on the colour wheel, so a trace of it deposited on the surface makes a warm cast read cooler. It washes out over the following few washes.

    • colourant
  • 42 Red 40 (Ci 16035)
    General function

    A certified colour that tints the product itself. It does not colour hair.

    Estimated lower-concentration zone

    It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

    May suitGray, silver, or brass-prone hair

    A violet or blue colorant sits opposite yellow on the colour wheel, so a trace of it deposited on the surface makes a warm cast read cooler. It washes out over the following few washes.

    • colourant

What the whole list adds up to

  • 7 botanical extracts
  • 6 cleansers
  • 6 fragrances
  • 4 preservatives
  • 4 salts
  • 3 mild anionic cleansers
  • 3 named fragrance allergens
  • 2 solvents
  • 2 film formers
  • 2 polymers
  • 2 opacifiers
  • 2 emollients
  • 2 antioxidants
  • 2 emulsifiers

Ingredient list captured 2026-08-22. Formulas change — check the package in your hand when an ingredient matters to you.

Price · 10.14 oz

Commonly seen about $30 Midpoint $30 · 5 stores · checked Aug 30
Good value under $30 Under $2.94/oz it costs less than three-quarters of the 7 products we score as doing the same job

Priced above the products that do the same job. Stores sell it above the $30 line; products that do this job typically go for about $36 at this size.

Show the price ladder
Where we’ve seen it6 listings · 6 stores

Sorted by price per ounce. Dated observations from our research, not live prices. Direct store pages, no affiliate links. We don’t sell this product.

How we work this out
  1. 10.14 oz is the size stores list most often; every comparison on this page is made at it. Other sizes are shown in the Sizes row and the store list.
  2. Commonly seen is the middle half of current prices for the 10.14 oz at recognised stores — the cheapest quarter and the dearest quarter are left out, so one sale or one overpriced listing can’t move it.
  3. Good value under $30 comes from the 7 products we score as doing the same job as this one. A quarter of them cost less than $2.94/oz; at 10.14 oz that is $30. Under that line you are paying less than most of them.
  4. About $36 is what those same products typically cost at this size — the midpoint of their prices per ounce, scaled to 10.14 oz.

Formula

Formula score
9 of 10

A complete read of the format at an ordinary price: mid-range per ounce among shampoos, with the working systems present.

How the score is counted
  • Costs more per ounce than 74% of the 805 shampoos we’ve priced
  • Covers 6 of the 7 things a shampoo should do
  • Reviewers mention 3 things they like about how it performs
  • Salon tier, sold at Brand website and Salons
  • A working detergent systemWhat actually removes oil and product.3 pts
  • Slip for detanglingReduces the force it takes to comb wet hair.2 pts
  • A humectantBinds water into the hair.1 pt
  • A hard-water chelatorBinds the minerals that dull hair in hard water.1 pt
  • A pH adjusterBrings the formula to the acidic pH hair prefers.1 pt
  • No detergent-dependent filmNothing that needs a clarifying wash to remove.1 pt
  • Fragrance kept out of the top eightScent as a finishing touch, not a major share.1 pt

The formula score is completeness for the job: the share of the systems this product type is normally built around that we can find in this list, weighted. It is not efficacy, not quality, and it never compares across product types.

Does the same job

Same derived functions — what it cleans, conditions, coats or holds — at a lower cost per ounce. Scent, texture and where you buy it can still differ.

R+CoClosest function ATLANTIS Moisturizing B5 Shampoo $3.52/oz $0.56/oz more
  • Sulfate-free
  • Deep clean
  • Hard water
Function
  • Film formers
Also
  • 8.5 oz bottle
  • Sold at specialty beauty counters
Compare
R+CoClose function DALLAS Biotin Thickening Shampoo $3.99/oz $1.03/oz more
  • Sulfate-free
  • Deep clean
  • Hard water
Function
  • Film formers
Also
  • Prestige tier
  • 8.5 oz bottle
Compare
UNITE HairLowest cost per oz Mint Thickening Shampoo $2.81/oz $0.15/oz less
  • Fragrance-free
  • Sulfate-free
  • Protein-free
· Close function
Function
  • Protein
Also
  • Masstige tier
  • 8 oz bottle
Compare

See more alternatives in the product library

These are functional neighbours, not personal recommendations — they are close on formula, not chosen for anyone. Get the one that fits your hair, routine, and budget

Suits every hair pattern

Final decision

Should you buy it?

Good for the right person
Best user

Colour-treated hair — for washing without sulfates and a proper reset wash

Biggest tradeoff

Worth skipping for anyone sensitive to fragrance, curly-method routines, or very dry or high-damage hair

Best alternative if not

Nothing in our library matches it closely at a lower price.

We do not sell products or take placement fees. This page states what the formula and the prices show; the consultation is what matches it to a person.

Claims check

What the brand says, against what the formula shows

Claims are quoted from the brand. We only mark one supported, partly supported, or conflicting when the ingredient list actually speaks to it; everything else stays "stated by the brand", which is not a criticism — most claims simply cannot be read off a label.

1
SupportedBacked by ingredients
0
Partly supportedSome supporting logic
1
Stated by brandNo clear evidence
0
Potential conflictFormula works against claim
85% Reported They Felt Increased Hair Volume and Strength (8-week clinical study)

A brand-run study. We report it as stated and do not repeat the number as fact.

Stated by brand

Only the brand’s testing shows this.

Color-safe, vegan, sulfate-free, paraben-free, gluten-free

No sulfate detergents appear in the ingredient list.

Supported

Gentler on colour and coils.

How to read this

We look at the first 10–15 ingredients and what they do in a formula — not marketing. If the list doesn't speak to a claim, we don't assume.

Reviewers

What people report

Recurring themes our researchers wrote in their own words from sourced reviews. We do not store or scrape star ratings.

Reviewers describe the formula as gentle and effectively cleansing without stripping

general users

Long-term repeat buyers report it as their go-to for thinning/aging hair, returning after trying other products

customers with thinning or aging hair

Multiple reviewers describe visible improvement or regrowth in thinning hair when used with the matching conditioner and tonic

customers using the full Regeniplex system

At least one reviewer reports increased hair shedding after weeks of use and frustration with the manufacturer's exchange-only (no refund) policy

a customer with thinning hair concerns

More from Paul Mitchell

How this page was made

  • Everything above is generated from our researched product record — identity, the ingredient list as printed, the brand's own claims, dated price observations, and review themes written in our researchers' own words. No part of this page is written per product.
  • The value band is a fixed label over two stored numbers: this product’s cost per ounce as a percentile of every product of this type we have priced, each at the size it is most often sold in, and how many products we score as doing the same job cost at least a quarter less per ounce.
  • Both scores out of ten are defined on this page. The formula score is completeness for the job, computed from a fixed per-format checklist shown beneath the gauge; the price score is cost per ounce against every product of this type we have priced.
  • The "Is this right for you?" panel reads only your own consultation answers, and it applies exactly the filters our recommendation engine applies. It is computed when you load the page and is never stored on it.
  • 4 sources consulted for this product (4 manufacturer or regulatory, 0 retailer, 0 editorial), last checked 2026-08-25.
  • Ingredient references are linked for 12 of 25 product-aware annotations on this page. Fit notes are conditional formulation guidance, not a conclusion about the finished product or about you.
  • We have not tested this product in a lab and we do not physically test your hair. Formula readings come from the ingredient list; behaviour claims are labelled as the brand's.
  • Ingredient order tells you relative amount only above roughly 1%. Prices are observations on the dates shown and change without notice.
  • Ingredient names link to our ingredient library, where each entry shows what it does, which product types use it, and where it usually sits on a label across everything we have researched.
  • This is cosmetic information, not medical advice, and nothing here diagnoses or treats a health condition.
  • Formula readings: derivation v22. Record last updated 2026-08-25.