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OGX · Thick & Full+ Biotin & Collagen

Thick & Full+ Biotin & Collagen Shampoo for Thin Hair

Shampoo / Clarifying, deep-cleaning

  • Shampoo
  • Sulfate-free
  • Not vegan · ingredient list
  • Not cruelty-free · PETA-listed
Size13 fl ozmost listed · 2 sizes
Price$6.97 Good valueseen at one store · 13 oz
Price / oz$0.54/ozat 13 oz
Where to buy3 stores · 2 sizes

Scent:

Reviewers describe it as fresh.

Strength: Light

Listing used for research: target.com

Personal fit

Is this right for you?

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Lower cost than most shampoos

$0.54/oz at 13 oz — less than 88% of the 805 shampoos , which mostly run $0.81–3.01/oz.

Price and stores

Great for

Colour-treated hairthat fades faster in a sulfate wash
Fast-oiling scalpsthat need a real reset wash
Protein-hungry hairthat stretches and stays stretched when wet
Very dry hairno fast-drying alcohol in the list
Cuticle-smoothing pHa pH adjuster brings it to the acidic range hair prefers
A wide range of haira middle-of-the-range weight

Maybe skip if

this product carries a light scent
Curly-method routinesthese silicones need a detergent to remove
Protein-sensitive hairthat goes stiff or straw-like on protein
Dry or damaged haira strong detergent system strips as it cleans
Hard waterno chelator here to bind the minerals
Vegan and cruelty-freeour record does not support both claims here

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 High

Thick foam that spreads quickly through the hair.

Slip and detangling Moderate

Conditioning agents are present, lower in the list.

Water-binding (humectants) None found

No humectants found — nothing here pulls water into the hair.

Scalp active None

No over-the-counter scalp active.

Hard-water defence None

No chelating agent in the list.

Needs detergent to remove Yes

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

Protein Prominent

Protein high in the list — a strengthening formula, not a moisture one.

Fragrance Prominent

Fragrance sits in the first eight ingredients — a larger share of the formula.

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
Water solvent The base everything else is dissolved in Neutral
Sodium C14-16 Olefin Sulfonate olefin sulfonate cleanser Cleanses
Cocamidopropyl Hydroxysultaine amphoteric cleanser Cleanses
Sodium Cocoyl Isethionate mild anionic cleanser Cleanses
Dimethicone silicone Smooths the cuticle and adds shine Buildup
Sodium Chloride salt Thickens the formula Stabilizes
Fragrance fragrance The scent Fragrance
Biotin vitamin A trace vitamin addition Neutral
Hydrolyzed Collagen film former A supporting film former Protein
Hydrolyzed Wheat Protein film former A supporting film former Protein
Ethyltrimonium Chloride Methacrylate/Hydrolyzed Wheat Protein Copolymer conditioning agent A little conditioning left behind Protein
Diazolidinyl Urea formaldehyde releaser Stabilizes
What the list leaves out, and what it carriesThe list carries no sulfates or drying alcohols. Protein sits high: this is a strengthening step rather than a moisture one. Fragrance is on the label. Water-insoluble silicones — needs a detergent wash to remove.
Full ingredient list (21)

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
    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 C14-16 Olefin Sulfonate
    General function

    A strong non-sulfate detergent used in "sulfate-free" shampoos. It cleans about as thoroughly as a sulfate despite the label difference.

    Leading ingredient

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

    May suitBuild-up-sensitive routines

    A strong detergent with no sulfate on the label. It removes deposited films about as completely as a sulfate does.

    May not suitVery dry or highly damaged hair

    Sulfate-free on the label is a naming fact, not a mildness one: this is an efficient detergent, and hair short of moisture can feel it.

    PubChem
    • olefin sulfonate cleanser
    • cleanser
  • 3 Cocamidopropyl Hydroxysultaine
    General function

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

    Leading ingredient

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

    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
  • 4 Sodium Cocoyl Isethionate
    General function

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

    • mild anionic cleanser
    • cleanser
  • 5 Dimethicone
    General function

    The most common conditioning silicone. It coats the strand for shine, slip, and frizz control, and needs a detergent (not just water) to wash out.

    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 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 not suitBuild-up-sensitive routines

    Dimethicone does not disperse in water. On a routine that skips detergent it stays on the hair and accumulates wash after wash.

    • silicone
    • emollient
    • conditioning agent
  • 6 Sodium Chloride
    General function

    Table salt. In shampoo it is used to thicken the liquid, not to treat the hair.

    Supporting ingredient

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

    PubChem
    • salt
    • thickener
  • Below about this point, order stops being meaningful — these are typically used at 1% or less.
  • 7 Fragrance
    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
  • 8 Biotin
    General function

    Vitamin B7, included for label appeal in thickening and growth-positioned products. Applied to hair it does not reach the follicle.

    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.

    PubChem
    • vitamin
  • 9 Hydrolyzed Collagen
    General function

    An animal-derived protein used for body and a smoother surface.

    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

    Filling surface gaps evens out the cuticle, which is part of what makes damaged hair comb and reflect light more like undamaged hair.

    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.

    May suitVery dry or highly damaged hair

    Hydrolysed fragments are small enough to sit in the gaps of a worn cuticle for a wash or two, temporarily restoring stiffness and cutting breakage in combing.

    • film former
    • protein
    • hydrolysed protein
  • 10 Hydrolyzed Wheat Protein
    General function

    Wheat protein broken into fragments small enough to cling to the hair. It adds temporary strength and body; too much can feel stiff.

    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

    Filling surface gaps evens out the cuticle, which is part of what makes damaged hair comb and reflect light more like undamaged hair.

    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.

    May suitVery dry or highly damaged hair

    Hydrolysed fragments are small enough to sit in the gaps of a worn cuticle for a wash or two, temporarily restoring stiffness and cutting breakage in combing.

    • film former
    • protein
    • hydrolysed protein
  • 11 Ethyltrimonium Chloride Methacrylate/Hydrolyzed Wheat Protein Copolymer
    General function

    A positively charged conditioning agent. Damaged hair carries a negative charge, so it deposits where the damage is and makes wet hair comb through.

    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

    A cationic conditioning agent: it binds to the damaged, negatively charged parts of the cuticle and lowers combing friction there.

    May suitVery dry or highly damaged hair

    Hydrolysed fragments are small enough to sit in the gaps of a worn cuticle for a wash or two, temporarily restoring stiffness and cutting breakage in combing.

    DependsBuild-up-sensitive routines

    Substantive by design. A routine with no detergent wash gives it nothing to leave with.

    • conditioning agent
    • protein
    • hydrolysed protein
  • 12 Polyquaternium-10
    General function

    A cellulose-based conditioning polymer that leaves a thin, static-reducing film. Very common in shampoos as the ingredient that keeps them from stripping.

    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

    Cationic polymers hold a curl loosely and stay soft, which is why they turn up in definition products rather than firm-hold ones.

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

    A cationic polymer stays on the hair through rinsing, which is what keeps static and combing friction down after the wash.

    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.

    • conditioning agent
    • film former
    • polymer
  • 13 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
  • 14 PEG-120 Methyl Glucose Dioleate
    • thickener
    • emulsifier
  • 15 Cocamidopropyl Betaine
    General function

    A mild coconut-derived co-cleanser that boosts foam and softens the effect of stronger detergents. It appears in most shampoos, gentle or not.

    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 suitDry, coarse, or high-porosity hair

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

    May not suitBuild-up-sensitive routines

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

    DependsVery dry or highly damaged hair

    Among the mildest detergents in use — it is what baby shampoos are built on — but it is almost always the second detergent in a formula. How much a wash strips is still decided by the primary detergent listed above it.

    Indian Journal of Dermatology
    • amphoteric cleanser
    • secondary cleanser
    • cleanser
  • 16 Laureth-4
    • emulsifier
  • 17 Laureth-23
    • emulsifier
    • solubilizer
  • 18 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
  • 19 Diazolidinyl Urea
    • formaldehyde releaser
    • preservative
  • 20 Iodopropynyl Butylcarbamate
    • preservative
  • 21 Violet 2 (CI 60725)
    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
    • direct dye
    • violet dye

What the whole list adds up to

  • 4 cleansers
  • 3 film formers
  • 3 proteins
  • 3 hydrolysed proteins
  • 3 emulsifiers
  • 2 amphoteric cleansers
  • 2 secondary cleansers
  • 2 emollients
  • 2 thickeners
  • 2 conditioning agents
  • 2 preservatives
  • 1 solvent
  • 1 olefin sulfonate cleanser
  • 1 mild anionic cleanser

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

Price · 13 oz

Seen at $6.97 1 store · checked Aug 30
Good value under $20 Under $1.53/oz it costs less than three-quarters of the 8 products we score as doing the same job

Usually a good value. Most stores sell it under the $20 line, and products that do this job typically go for about $43 at this size.

Sizes

13 ozmost listed
$6.97
$0.54/oz
25.4 oz
$13.69
$0.64/oz

The 13 oz costs the least per ounce — 16% less than the 25.4 oz.

Show the price ladder
Where we’ve seen it4 listings · 2 stores

13 ozmost listedBest per ounce

  • Walmart
    $6.97
    13 oz · $0.54/oz
    Aug 30Lowest per ozSale · was $9.52
  • Target
    $6.99
    13 oz · $0.54/oz
    Aug 22

25.4 oz

  • Target
    $13.69
    25.4 oz · $0.54/oz
    Aug 30Lowest per oz
  • Walmart
    $18.99
    25.4 oz · $0.75/oz
    Aug 30

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. 13 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. Seen at $6.97 is the price we have observed for the 13 oz. We need three stores before we call a price commonly seen.
  3. Good value under $20 comes from the 8 products we score as doing the same job as this one. A quarter of them cost less than $1.53/oz; at 13 oz that is $20. Under that line you are paying less than most of them.
  4. Each size is guarded on its own, so a multipack or a marketplace listing at one size cannot move another.
  5. About $43 is what those same products typically cost at this size — the midpoint of their prices per ounce, scaled to 13 oz.

Formula

Formula score
7 of 10

Not the most complete shampoo formula we have read, but it is under most of the range for shampoos per ounce.

How the score is counted
  • Costs less per ounce than 88% of the 805 shampoos we’ve priced
  • No humectant in the formula
  • Reviewers mention 3 things they like about how it performs
  • Drugstore tier, sold at Target
  • 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.

Marc AnthonyLighter feel Repair Blonde Purple Shampoo $1.69/oz $1.15/oz more
  • Sulfate-free
  • Deep clean
  • Protein
· Close function
Function
  • Water-binding (humectants)
  • Oils and butters
  • Film formers
Also
  • Floral scent, not fresh
  • Cruelty-free
  • 8 oz bottle
Compare
L'anzaLighter feel Healing Volume Shampoo $3.62/oz $3.08/oz more
  • Sulfate-free
  • Deep clean
  • Protein
· Related function
Function
  • Toning dye
  • Water-binding (humectants)
  • Film formers
Also
  • Cruelty-free
  • Salon tier
  • 10.1 oz bottle
Compare
AussieLowest cost per oz Ultra Smooth Shampoo $0.99/oz $0.45/oz more
  • Sulfate-free
  • Deep clean
  • Protein
· Related function
Function
  • Toning dye
  • Oils and butters
  • Hard-water defence
Also
  • Cruelty-free
  • 10.1 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

Less suited to anyone sensitive to fragrance, curly-method routines, or hair that stiffens on protein

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
1
Partly supportedSome supporting logic
1
Stated by brandNo clear evidence
0
Potential conflictFormula works against claim
72+ hours of volume & body

A mid-weight formula: it will not flatten fine hair, but lift is not its main job.

  • Hydrolyzed Collagen
  • Hydrolyzed Wheat Protein
  • Ethyltrimonium Chloride Methacrylate/Hydrolyzed Wheat Protein Copolymer
Partly supported

Neutral on lift.

2x more protein & lipid protection via LipiPro Shield Technology

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.

Sulfate-free, paraben-free formulation

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 with damaged or overprocessed hair (bleached, heat-styled) report improved softness and shine, with several calling it worth the higher price versus typical drugstore shampoos

reviewers with chemically/heat-damaged hair

Reviewers describe pleasant lathering texture and a mild scent that leaves hair feeling clean and soft

general users

Reviewers with fine or thinning hair report noticeably more volume and fullness without weigh-down, and reduced hair fall over weeks of use

fine/thinning-hair reviewers

A subset of reviewers report the shampoo left their hair dry, rough, or lifeless, with some describing it as different from an earlier version of the product

general users

Reviewers like that the formula is sulfate-free, but at least one long-time user is skeptical of the added silicones and believes they contributed to hair thinning over time

general users

More from OGX

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.
  • 5 sources consulted for this product (3 manufacturer or regulatory, 2 retailer, 0 editorial), last checked 2026-08-25.
  • Ingredient references are linked for 4 of 13 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.