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Nature Skin Shop

Beautiful Curls Defining Shampoo

Shampoo / Everyday cleanser, balanced

  • Shampoo
  • Sulfate-free
  • Silicone-free
  • Protein-free
Size8.5 ounces
Price$11.18seen at one store · 8.5 oz
Price / oz$1.32/ozat 8.5 oz
Where to buy2 stores · $11.18–26.00

Add it to your products. We’ll tell you if it’s ever recalled.

Scent:

The ingredient list declares fragrance. What it smells of is not stated, and we do not guess.

Personal fit

Is this right for you?

Complete the consultation to see how well this product fits your hair and your goals. With 6,000+ products in our library, we can match you to the right ones.

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  • Every product matched against your hair across the 22 factors we check.
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  • Find products that do the same job at a lower cost.
  • Your goals, scalp, damage history, water, budget, and scent preferences all shape your plan.

$49 with 60 days of follow-up questions and plan updates

$99 with 12 months. Pay once; the year renews only if you choose.

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Priced with its peers

$1.32/oz at 8.5 oz, less than 55% of the 1544 shampoos , which mostly run $0.79–3.04/oz. The cost less.

Price and stores

Great for

Colour-treated hairthat fades faster in a sulfate wash
Protein-sensitive hairthat stiffens when protein is added
Maximum slipfor hair that tangles the moment it is wet
Curly-method routinesno sulfates and no water-insoluble silicones
Silicone-free routinesno silicones appear in the list
Very dry hairno fast-drying alcohol in the list

Maybe skip if

this product has a scent
Hair that needs proteinthere is none in this list
Hard waterno chelator here to bind the minerals
Tight budgetsit sits in the upper price tiers
Picking it up locallywe’ve only seen it sold in one channel

How much cleansing you need depends on how fast your scalp gets oily, how much product you layer and your water. The consultation works that 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 Moderate

Removes oil and product; leaves some conditioning behind.

Expected lather High

Thick foam that spreads quickly through the hair.

Slip and detangling High

Conditioning agents sit high in the list, so this is a detangling formula.

Water-binding (humectants) None found

No humectants, so 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 No

Nothing here needs a detergent wash to remove.

Protein None

No protein or amino acids in the list.

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. The 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
WaterPurified Water solvent The base everything else is dissolved in Neutral
Guar Hydroxypropyltrimonium Chloride conditioning agent Puts conditioning back as it washes Detangles
Orbignya Oleifera (Babassu) Seed Oil  Babassu Oil oil Coats and softens the strand Softens
Sodium Lauroyl Sarcosinate mild anionic cleanser — Cleanses
Potassium Cocoate  Potassium Cocoate cleanser Does the cleaning Cleanses
Sodium C14-16 Olefin SulfonateSodium C14-16 alpha olefin sulfonate olefin sulfonate cleanser — Cleanses
Decyl Glucoside nonionic cleanser — Cleanses
Sodium Lauroyl Sarcosinate mild anionic cleanser — Cleanses
Fragrance  Fragrance Oil fragrance The scent Fragrance
What the list leaves out, and what it carriesThe list carries no sulfates, silicones, or drying alcohols. No protein: a moisture formula, not a repair one. Fragrance is on the label.
Full ingredient list (15)

In the US, ingredients above 1% are listed from most to least. Below 1% they can appear in any order. Each note keeps three things apart: what the ingredient generally does, its role in this type of product, and what its position can tell you.

  • 1 Water · Purified 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 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.

    Leading ingredient

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

    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
  • 3 Orbignya Oleifera (Babassu) Seed Oil ·   Babassu Oil
    General function

    Babassu oil - solid at cool temperatures, lighter than coconut oil in feel.

    Leading ingredient

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

    May suitDry, coarse, or high-porosity hair

    Coats the surface and slows water leaving the strand, which is usually what coarse hair that dries out fast is missing.

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

    A thin oil layer lowers friction between strands and flattens the raised cuticle that scatters light and catches on its neighbours.

    May not suitFine or easily flattened hair

    Near the top of a list an oil is weight before it is anything else, and fine hair shows that first at the roots.

    • oil
    • emollient
  • 4 Sodium Lauroyl Sarcosinate
    General function

    A gentle cleanser that leaves a soft after-feel; often paired with stronger detergents.

    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
  • 5 Potassium Cocoate ·   Potassium Cocoate
    General function

    Coconut soap. It cleans well but is alkaline, which can leave hair rough unless an acidic rinse follows.

    Supporting ingredient

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

    • cleanser
  • 6 Sodium C14-16 Olefin Sulfonate · Sodium C14-16 alpha 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.

    Supporting ingredient

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

    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
  • 7 Decyl Glucoside
    General function

    A sugar-derived, low-foam cleanser used in gentle and curly-method shampoos.

    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

    A sugar-derived non-ionic detergent, among the gentlest in use. It cleanses with little foam of its own and little sebum removal.

    May not suitBuild-up-sensitive routines

    Gentle cleansing leaves water-insoluble deposits largely in place; they come off with a stronger wash, not this one.

    PubChem
    • nonionic cleanser
    • cleanser
  • 8 Sodium Lauroyl Sarcosinate
    General function

    A gentle cleanser that leaves a soft after-feel; often paired with stronger detergents.

    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
  • 9   ProVitmain B5
  • 10 Bamboo Silica Water
  • 11 Squalene
    General function

    The unsaturated parent of squalane and a natural component of scalp sebum. It is less stable than squalane and oxidises faster.

    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.

    • emollient
  • 12 Quaternium-31
  • 13 Glyceryl Oleate
    General function

    An emulsifier that also softens, often added to make a cleanser feel less stripping.

    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.

    • emulsifier
    • emollient
  • ▾Below about here, the order stops meaning much. These are usually used at 1% or less.
  • 14 Phenoxyethanol
    • preservative
  • 15 Fragrance ·   Fragrance Oil
    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

What the whole list adds up to

  • 5 cleansers
  • 3 emollients
  • 2 mild anionic cleansers
  • 1 solvent
  • 1 conditioning agent
  • 1 polymer
  • 1 gum
  • 1 oil
  • 1 olefin sulfonate cleanser
  • 1 nonionic cleanser
  • 1 emulsifier
  • 1 preservative
  • 1 fragrance
  • 1 declared fragrance

Ingredient list captured 2026-10-07. Formulas change, so check the package in your hand when an ingredient matters to you.

Price · 8.5 oz

Seen at $11.18 1 store · checked Oct 22
Good value under $9 Under $1.05/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 $9 line; products that do this job typically go for about $9 at this size.

Show the price ladder
Where we’ve seen it2 listings · 2 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. and 1 listing we don’t count, from grey-market or unverified sellers.

How we work this out
  1. 8.5 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 $11.18 is the price we have observed for the 8.5 oz. We need three stores before we call a price commonly seen.
  3. Good value under $9 comes from the 7 products we score as doing the same job as this one. A quarter of them cost less than $1.05/oz; at 8.5 oz that is $9. Under that line you are paying less than most of them.
  4. About $9 is what those same products typically cost at this size: the midpoint of their prices per ounce, scaled to 8.5 oz.

Formula

Formula score
7 of 10

Nothing separates this from the middle of the range for shampoos, on formula or on cost per ounce.

How the score is counted
  • 1 products that do the same job cost less per ounce
  • Costs less per ounce than 55% of the 1544 shampoos we’ve priced
  • No humectant in the formula
  • Salon tier, sold at Brand website
  • 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 measures completeness for the job: a weighted share of the systems this product type is usually built around that we find in this list. It does not rate how well the product works or its quality, and it never compares across product types.

Does the same job, for less

Formulas that do the same things (cleanse, condition, coat or hold) for less per ounce. Scent, texture and where you buy them can still differ.

Mane 'n TailLowest cost per oz Repair 'n Replenish Shampoo $0.78/oz $0.54/oz less
  • Sulfate-free
  • Deep clean
  • Curly method
· Close function
Function
  • Cleansing strength
  • Oils and butters
  • Protein
Also
  • Drugstore tier
  • 11.2 oz bottle
Compare

See more alternatives in the product library

These products do a similar job. We haven’t matched them to you. Find the one that fits your hair, routine and budget

Built for wavy to coily hair

Final decision

Should you buy it?

A solid pick for the hair it suits
Best user

Colour-treated hair, looking for washing without sulfates and a protein-free formula

Biggest tradeoff

Worth skipping for anyone sensitive to fragrance, soft, over-stretchy hair that needs protein, or hard water without a chelating wash

Best alternative if not

Mane 'n Tail Repair 'n Replenish Shampoo, for similar results 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, and what the formula shows

Claims are quoted from the brand. We mark a claim supported, partly supported or conflicting only when the ingredient list speaks to it. Everything else stays "stated by the brand". That isn’t a criticism: most claims can’t be checked from a label.

2
SupportedBacked by ingredients
1
Partly supportedSome supporting logic
3
Stated by brandNo clear evidence
0
Potential conflictFormula works against claim
Sulfate-free formula that gently cleanses

No sulfate detergents appear in the ingredient list.

—

Supported

Gentler on colour and coils.

Reduces frizz appearance

Oils and polymers can smooth a little; the stronger smoothing agents are not listed.

  • Guar Hydroxypropyltrimonium Chloride
  • Orbignya Oleifera (Babassu) Seed Oil
Partly supported

Some smoothing, in dry air.

Enhances wave and curl shape

This is a marketing claim; an ingredient list cannot speak to it.

—

Stated by brand

Can’t be confirmed from label.

Contains Rice Curl Complex for curl retention

A named-ingredient story. What matters is where those sit in the list — see the ingredients table.

  • Orbignya Oleifera (Babassu) Seed Oil
Stated by brand

Check the position, not the name.

Provides weightless hydration

Humectants or rich emollients sit in the first eight ingredients.

  • Orbignya Oleifera (Babassu) Seed Oil
  • Squalene
  • Glyceryl Oleate
Supported

Helps hair feel hydrated.

100% color-safe

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.

How to read this

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

More from Nature Skin Shop

How this page was made

  • Everything above comes from our researched product record: identity, the ingredient list as printed, the brand's own claims, dated prices and review themes our researchers wrote in their own words. No part of this page is written by hand for one 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.
  • 2 sources consulted for this product (1 manufacturer or regulatory, 0 retailer, 1 editorial), last checked 2026-10-17.
  • Ingredient references are linked for 4 of 9 product-aware annotations on this page. Fit notes are general formulation guidance. They aren’t a verdict on the finished product or on you.
  • We haven’t tested this product in a lab, and we don’t physically test your hair. Formula readings come from the ingredient list. Claims about how it behaves are labelled as the brand's.
  • Ingredient order tells you relative amount only above roughly 1%. Prices are what we saw on the dates shown and can change.
  • 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 v23. Record last updated 2026-10-17.

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