A weekly scalp treatment that gently exfoliates away buildup
This is a marketing claim; an ingredient list cannot speak to it.
—
Can’t be confirmed from label.
Shampoo / Clarifying, deep-cleaning
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.
Manufacturer page: rahua.com
Personal fit
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.
$49 with 60 days of follow-up questions and plan updates
$99 with 12 months. Pay once; the year renews only if you choose.
The rest of what your plan weighs on this product.
The consultation builds your hair profile, checks every factor in this table against it, and tells you where this product fits or what to use instead.
Start your consultation$49 once, with 60 days of follow-up questions and plan updates. Nothing renews, and you never have to buy a product.
Your avoid-list
Same job for less elsewhere
$4.42/oz at 9.5 oz, more than 89% of the 1544 shampoos , which mostly run $0.79–3.04/oz.
Great for
Maybe skip if
What the formula actually does
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.
A reset wash that removes oil, buildup, and most residue.
An ordinary shampoo lather.
Conditioning agents are present, lower in the list.
Humectants in the working part of the formula.
No over-the-counter scalp active.
No chelating agent in the list.
Nothing here needs a detergent wash to remove.
Protein appears, low enough to be a supporting ingredient.
Fragrance is listed; it sits below the working ingredients.
Ingredients that matter
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.
| Ingredient | What it does | Why it matters | Chip |
|---|---|---|---|
| WaterWater/Aqua/Eau | solvent | The base everything else is dissolved in | Neutral |
| Sodium Cocoyl Isethionate | mild anionic cleanser | — | Cleanses |
| Cocamidopropyl Betaine | amphoteric cleanser | — | Cleanses |
| Illicium Verum Fruit PowderIllicium Verum (Anise) Fruit Powder | botanical extract | A plant extract, there as much for marketing as for function | Neutral |
| Sodium Methyl Cocoyl Taurate | mild anionic cleanser | — | Cleanses |
| Sodium Cocoyl Glutamate | mild anionic cleanser | — | Cleanses |
| Disodium Cocoyl Glutamate | mild anionic cleanser | — | Cleanses |
| Sodium ChlorideSodium Chloride (Sea Salt) | salt | Thickens the formula | Stabilizes |
| Hydrolyzed Quinoa | film former | A supporting film former | Protein |
| Cymbopogon Nardus (Citronella) Oil | botanical extract | A trace plant extract | Fragrance |
| FragranceFragrance/Parfum | fragrance | The scent | Fragrance |
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.
The base of almost every rinse-off and cream hair product. It carries everything else and is normally the first ingredient on the label.
Listed in the first three ingredients, it is likely a structural part of this formula.
A mild cleanser that gives a creamy lather and leaves hair less stripped than sulfates.
Listed in the first three ingredients, it is likely a structural part of this formula.
The detergent class most curl routines are built around: it lathers and cleanses without stripping the strand back to bare.
A gentler detergent leaves more of the surface oil that slows water loss from coarse or porous hair.
Cleanses with less sebum removal than a sulfate detergent, so hair that is short of moisture keeps more of it through the wash.
A mild coconut-derived co-cleanser that boosts foam and softens the effect of stronger detergents. It appears in most shampoos, gentle or not.
Listed in the first three ingredients, it is likely a structural part of this formula.
Mild cleansing leaves more surface lubrication in place on hair that dries out quickly.
The mildest detergents are also the least complete: a routine that deposits films needs something stronger periodically.
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.
A mild cleanser that keeps foaming in hard water and rinses cleanly.
Listed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
The detergent class most curl routines are built around: it lathers and cleanses without stripping the strand back to bare.
A gentler detergent leaves more of the surface oil that slows water loss from coarse or porous hair.
Cleanses with less sebum removal than a sulfate detergent, so hair that is short of moisture keeps more of it through the wash.
An amino-acid-derived cleanser, among the mildest in common use, with a low-foam, creamy feel.
Listed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
The detergent class most curl routines are built around: it lathers and cleanses without stripping the strand back to bare.
A gentler detergent leaves more of the surface oil that slows water loss from coarse or porous hair.
Cleanses with less sebum removal than a sulfate detergent, so hair that is short of moisture keeps more of it through the wash.
A very mild amino-acid cleanser with a low, creamy foam.
Listed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
The detergent class most curl routines are built around: it lathers and cleanses without stripping the strand back to bare.
A gentler detergent leaves more of the surface oil that slows water loss from coarse or porous hair.
Cleanses with less sebum removal than a sulfate detergent, so hair that is short of moisture keeps more of it through the wash.
Table salt. In shampoo it is used to thicken the liquid, not to treat the hair.
Listed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
Glycerin, also called glycerol, attracts moisture and mixes completely with water.
Lower in the ordered portion of the list, it is more likely playing a supporting role than defining the formula.
High-porosity hair loses water fast; a humectant holds some of it in place for longer than the wash itself would.
Binds water into the outer layers of the strand, and water is what makes dry hair flexible again rather than brittle.
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.
A light Amazonian fruit oil used for shine and softness.
Lower in the ordered portion of the list, it is more likely playing a supporting role than defining the formula.
Coats the surface and slows water leaving the strand, which is usually what coarse hair that dries out fast is missing.
A thin oil layer lowers friction between strands and flattens the raised cuticle that scatters light and catches on its neighbours.
A rich orange fruit oil used in small amounts in curl and colour-care products.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
Coats the surface and slows water leaving the strand, which is usually what coarse hair that dries out fast is missing.
A thin oil layer lowers friction between strands and flattens the raised cuticle that scatters light and catches on its neighbours.
A light seed oil rich in fatty acids, used for softness without much weight.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
Coats the surface and slows water leaving the strand, which is usually what coarse hair that dries out fast is missing.
A thin oil layer lowers friction between strands and flattens the raised cuticle that scatters light and catches on its neighbours.
Table sugar, used as a humectant and, in scrubs, as a physical exfoliant.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
High-porosity hair loses water fast; a humectant holds some of it in place for longer than the wash itself would.
Binds water into the outer layers of the strand, and water is what makes dry hair flexible again rather than brittle.
A humectant moves water in whichever direction the air allows: it holds moisture in humid conditions and can pull it back out of hair in very dry ones.
A quinoa-derived protein used for light strengthening and colour retention claims.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
Filling surface gaps evens out the cuticle, which is part of what makes damaged hair comb and reflect light more like undamaged hair.
Film formers are what hold a style: they dry into a connected film across the strands so the shape resists movement.
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.
An acid used to set pH and, in scalp products, to loosen flakes.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
High-porosity hair loses water fast; a humectant holds some of it in place for longer than the wash itself would.
Binds water into the outer layers of the strand, and water is what makes dry hair flexible again rather than brittle.
A humectant moves water in whichever direction the air allows: it holds moisture in humid conditions and can pull it back out of hair in very dry ones.
A soft white clay that absorbs oil and adds body without much grit.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
Absorbs oil and adds texture, which is what gives fine hair grip at the root instead of slip.
An amino acid that holds water and carries a positive charge, so it is drawn to damaged spots on the strand.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
Amino acids are the smallest protein fraction and bind water as well, so they add far less stiffness than a hydrolysed protein does.
A humectant follows the air: it holds water in humid conditions and can give it up in very dry ones. Climate decides what it does more than the label does.
The lightest option in the protein family, but still protein — worth watching if protein reliably stiffens your hair.
A cellulose thickener that gives gels and conditioners their body and adds a soft, flexible film.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
A polysaccharide film stays softer than a synthetic one as it dries, which is what leaves a curl defined but still able to move.
A soft film binds neighbouring strands together, which is most of what helps flyaways lie down.
Gum films stay soft. A style that needs firm fixation usually wants a synthetic polymer doing the holding.
A plant-derived light ester used where a silicone-free but silky feel is wanted.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
A light emollient: it softens the surface with noticeably less weight than an oil or a butter.
Spreads thin and lowers friction between strands without the heaviness of a fixed oil.
The essential oil of Citronella (Cymbopogon Nardus). Essential oils are aromatic — they are in the formula for scent, and they are a common source of declared fragrance allergens.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
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.
The smallest amino acid in hair protein, added for moisture binding.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
Amino acids are the smallest protein fraction and bind water as well, so they add far less stiffness than a hydrolysed protein does.
The lightest option in the protein family, but still protein — worth watching if protein reliably stiffens your hair.
A conditioning polymer made from guar bean gum. It deposits during rinsing, which is why sulfate shampoos can still leave hair soft.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
Gums thicken and set soft, which gives definition that bends rather than a rigid cast.
Cationic conditioners bind to the negatively charged damaged cuticle, laying it flat and cutting the friction that causes combing breakage.
A styling polymer dries into a film across the strands, which is what makes a shape hold instead of relax.
A fermented sugar gum that thickens water-based formulas and adds soft, natural hold.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
A polysaccharide film stays softer than a synthetic one as it dries, which is what leaves a curl defined but still able to move.
A soft film binds neighbouring strands together, which is most of what helps flyaways lie down.
Gum films stay soft. A style that needs firm fixation usually wants a synthetic polymer doing the holding.
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.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
Declared fragrance. On a fragrance-sensitive routine this is the line that decides it, wherever it sits on the label.
Ingredient list captured 2026-09-05. Formulas change, so check the package in your hand when an ingredient matters to you.
Price · 9.5 oz
Priced above the products that do the same job. Stores sell it above the $32 line; products that do this job typically go for about $41 at this size.
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.
Formula
The formula carries what a shampoo is built around, and 2 products we score as close matches cost at least a quarter less per ounce. The difference is the label, not the formula.
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.
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



Final decision
Colour-treated hair who want washing without sulfates and a proper reset wash
Worth skipping for anyone sensitive to fragrance, dry or damaged hair, or hard water without a chelating wash
Consider Kristin Ess Extra Gentle 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
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.
A weekly scalp treatment that gently exfoliates away buildup
This is a marketing claim; an ingredient list cannot speak to it.
—
Can’t be confirmed from label.
Exfoliates, Adds Shine, Balances Scalp
The formula carries a recognised shine system — silicone, oil, or light ester.
Reflects light for visible shine.
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.
Reviewers
Themes that come up again and again in sourced reviews, written by our researchers in their own words. We don’t store or scrape star ratings.
Reviewers describe the shampoo as giving a deep, refreshing cleanse to both scalp and hair.
general reviewersMultiple reviewers with flaky, itchy scalps say repeated use visibly reduced flaking and calmed scalp irritation.
reviewers with flaky or itchy scalp concernsSeveral reviewers comment on the thin, watery consistency and say the bottle's design makes it hard to dispense a controlled amount.
reviewers commenting on texture and packagingAt least one reviewer feels the shampoo is overpriced for what it delivers and does not plan to repurchase.
price-sensitive reviewer