Shampoo / Clarifying, deep-cleaning
Scent:
Reviewers describe it as palo santo.
Manufacturer page: rahua.com
Personal fit
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Your avoid-list
Same job for less elsewhere
$4.09/oz at 9.3 oz — more than 87% of the 817 shampoos , which mostly run $0.81–3.01/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.
Removes oil, buildup, and most residue — a reset wash.
Thick foam that spreads quickly through the hair.
Nothing here is built to reduce combing force.
Humectants near the top — water-binding is a headline mechanism here.
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.
No fragrance is listed.
Ingredients that matter
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.
| Ingredient | What it does | Why it matters | Chip |
|---|---|---|---|
| WaterWater (Aqua) | solvent | The base everything else is dissolved in | Neutral |
| Sodium C14-16 Olefin Sulfonate | olefin sulfonate cleanser | — | Cleanses |
| Cocamidopropyl Betaine | amphoteric cleanser | — | Cleanses |
| Sodium Chloride | salt | Thickens the formula | Stabilizes |
| Glycerin | humectant | Pulls water into the hair | Moisturizes |
| Saccharum Officinarum (Sugar Cane) Extract | botanical extract | A plant extract, marketed as much as functional | Neutral |
| Oenocarpus Bataua (Ungurahua) Fruit Oil | oil | Coats and softens the strand | Softens |
| Bursera Graveolens (Palo Santo) Wood Oil | fragrance | The scent | Fragrance |
| Hydrolyzed Quinoa | film former | A supporting film former | Protein |
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.
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 strong non-sulfate detergent used in "sulfate-free" shampoos. It cleans about as thoroughly as a sulfate despite the label difference.
Listed in the first three ingredients, it is likely a structural part of this formula.
A strong detergent with no sulfate on the label. It removes deposited films about as completely as a sulfate does.
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.
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.
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.
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.
Listed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
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.
An extract of Sugar Cane (Saccharum Officinarum). Plant extracts are used across a wide range of levels, and label order is the best guide to how much is here.
Listed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
A light Amazonian fruit oil used for shine and softness.
Listed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
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.
Near the top of a list an oil is weight before it is anything else, and fine hair shows that first at the roots.
The essential oil of Palo Santo (Bursera Graveolens). 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.
A concentrated aloe extract used for light moisture and a soothing claim.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
Hydration with no oil attached, so it adds very little weight even high on a list.
Aloe is mostly water carrying sugars that bind more of it, which is why it turns up as the base of moisture-first formulas.
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.
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 amino-acid derivative used to support the preservative system and, in scalp products, for a clarifying claim.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
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.
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.
Provitamin B5. It draws in water and penetrates the strand a little, which is why it is the standard ingredient for softness and shine 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.
It hydrates without adding oil or a film, which is the combination fine hair usually needs.
Deposits a lubricating layer that makes combing easier, which is most of what stops mechanical damage adding to frizz.
A humectant that also penetrates the cuticle, so it holds water inside the strand rather than only on the surface.
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.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
Holds hard-water minerals in solution so they rinse away instead of depositing on the 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.
Where a warm cast comes from water minerals rather than from the hair itself, holding those metals in solution is what removes it.
Ingredient list captured 2026-08-22. Formulas change — check the package in your hand when an ingredient matters to you.
Price · 9.3 oz
Priced above the products that do the same job. Stores sell it above the $28 line; products that do this job typically go for about $37 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.
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 buying the label, not a different formula.
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, for less
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.
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
Final decision
People sensitive to fragrance, looking for a formula with no added fragrance and washing without sulfates
Less suited to anyone sensitive to fragrance, dry or damaged hair, or very dry or very humid climates
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 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.
A nourishing shampoo that gently cleanses while strengthening hair from root to tip.
Humectants or rich emollients sit in the first eight ingredients.
Helps hair feel hydrated.
Hair feels refreshed, stronger, and naturally radiant with every wash
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 marketing. If the list doesn't speak to a claim, we don't assume.
Reviewers
Recurring themes our researchers wrote in their own words from sourced reviews. We do not store or scrape star ratings.
The Palo Santo scent is repeatedly cited as a highlight, described as spa-like.
Reviewers with fine, oily-scalp hair describe it as an effective clarifying shampoo that controls oil without over-stripping.
fine/oily-scalp reviewersAt least one reviewer reported minimal lather and a greasy, unclean feel on first use.
One reviewer flagged that the ingredient list shown on the Amazon storefront differed from the one on the brand website.
ingredient-list discrepancy across channelsSeveral reviewers with fine wavy or curly hair find it too heavy or drying when used together with the matching conditioner.
fine wavy/curly hair reviewers