Neutralizes brassiness and yellowing of lighter tones
This is a marketing claim; an ingredient list cannot speak to it.
—
Can’t be confirmed from label.
Co-wash / Low-lather cleanser, non-foaming
Scent:
Notes: fresh, herbal.
Manufacturer page: hairstory.com
Personal fit
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Your avoid-list
Priced above most co-washes
$6.75/oz at 8 oz — more than 98% of the 94 co-washes , which mostly run $1.08–2.77/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.
No detergent — the conditioners do the cleaning.
Conditioning agents sit high in the list — this is a detangling formula.
Oils are present, but low enough to be a finishing touch.
Humectants near the top — water-binding is a headline mechanism here.
Water-first and light: unlikely to flatten fine hair.
Water-insoluble silicones or waxes: a detergent wash is what removes them.
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/Eau | solvent | The base everything else is dissolved in | Neutral |
| Aloe Barbadensis Leaf Juice | humectant | Pulls water into the hair | Moisturizes |
| Glycerin | humectant | Pulls water into the hair | Moisturizes |
| Cetearyl Alcohol | fatty alcohol | Body and cleansing feel — not a drying alcohol | Softens |
| Cetyl Alcohol | fatty alcohol | Body and cleansing feel — not a drying alcohol | Softens |
| Stearamidopropyl Dimethylamine | conditioning agent | Does the cleaning here — a co-wash cleans with conditioners | Detangles |
| Stearyl Alcohol | fatty alcohol | Body and cleansing feel — not a drying alcohol | Softens |
| Gluconolactone | humectant | Adds a little water-binding | Moisturizes |
| Hydrolyzed Adansonia Digitata (Baobab) Seed Extract | botanical extract | A trace plant extract | Protein |
| Simmondsia Chinensis (Jojoba) Seed Oil | emollient | A softening touch, low in the list | Buildup |
| Mentha Piperita (Peppermint) Oil | botanical extract | A trace plant extract | Fragrance |
| Menthyl Lactate | fragrance | The scent | Fragrance |
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.
Aloe gel, used for light moisture and slip. High in the list it also contributes a little natural hold.
Listed in the first three ingredients, it is likely a structural part of this formula.
Gums thicken and set soft, which gives definition that bends rather than a rigid cast.
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 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 the first three ingredients, it is likely a structural part of this 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 waxy fatty alcohol - nothing like drying alcohol. It gives conditioners their body and leaves a soft, smoothing film on the hair.
Listed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
The waxy solid that gives a conditioner its body. It deposits a soft lubricating layer, which is most of what makes hair feel smooth after rinsing.
Deposits with the cationic conditioners and helps them lie flat along the strand, which is where the detangling actually comes from.
Near the top of a conditioner it is doing most of the conditioning, and most of the weighting, at the same time.
A fatty alcohol used to thicken creams and add slip. It softens rather than dries.
Listed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
The waxy solid that gives a conditioner its body. It deposits a soft lubricating layer, which is most of what makes hair feel smooth after rinsing.
Deposits with the cationic conditioners and helps them lie flat along the strand, which is where the detangling actually comes from.
Near the top of a conditioner it is doing most of the conditioning, and most of the weighting, at the same time.
A gentle conditioning agent activated by the acid in the formula. It smooths the cuticle without much build-up.
Listed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
A cationic conditioning agent: it binds to the damaged, negatively charged parts of the cuticle and lowers combing friction there.
The class that does the detangling in a conditioner. It deposits lubrication where the cuticle is worn.
Substantive by design. A routine with no detergent wash gives it nothing to leave with.
A fatty alcohol that thickens conditioners and helps them coat the hair evenly.
Listed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
The waxy solid that gives a conditioner its body. It deposits a soft lubricating layer, which is most of what makes hair feel smooth after rinsing.
Deposits with the cationic conditioners and helps them lie flat along the strand, which is where the detangling actually comes from.
Near the top of a conditioner it is doing most of the conditioning, and most of the weighting, at the same time.
A gentle acid that holds water and helps loosen surface build-up. It also binds a little hard-water mineral.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
Binds the calcium and magnesium in hard water, which is what stops mineral deposits accumulating on the strand wash after wash.
High-porosity hair loses water fast; a humectant holds some of it in place for longer than the wash itself would.
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.
A broken-down baobab seed extract, used for conditioning and strength 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.
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.
Not chemically an oil: about 97% of it is liquid wax esters, which is why it resists going rancid and sits close to the scalp's own sebum. It smooths without a heavy finish.
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 wax holds by staying solid on the strand, which gives grip and separation rather than a set film that cracks.
A light oil rich in fatty acids, used in scalp and dry-hair treatments.
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, widely used oil that softens 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.
A corn-derived humectant and solvent, often chosen as a lighter-feeling alternative to propylene glycol.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
Light and water-binding rather than oily, so it hydrates without contributing weight.
A small water-binding solvent. It holds moisture and helps the rest of the formula spread evenly over the strand.
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 light plant oil used to soften and carry other oil-based ingredients.
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 sugar alcohol that binds water and gives a light, non-sticky moisturised feel.
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.
Peppermint essential oil, used for scent and the cooling feeling on the scalp.
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.
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.
A conditioning agent used for slip and a smooth, coated finish.
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 cationic conditioning agent: it binds to the damaged, negatively charged parts of the cuticle and lowers combing friction there.
The class that does the detangling in a conditioner. It deposits lubrication where the cuticle is worn.
Substantive by design. A routine with no detergent wash gives it nothing to leave with.
A mild cationic conditioner known for heavy detangling with a light rinse-out feel. Common in curly-hair conditioners.
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 cationic conditioning agent: it binds to the damaged, negatively charged parts of the cuticle and lowers combing friction there.
The class that does the detangling in a conditioner. It deposits lubrication where the cuticle is worn.
Substantive by design. A routine with no detergent wash gives it nothing to leave with.
A plant-derived polyglycerol ester. It emulsifies without ethoxylation, which is why it turns up in formulas positioned as PEG-free, and leaves a soft feel.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
Emollients fill and smooth the surface of the strand, which lowers the friction that lifts the cuticle and reads as roughness.
A gentler cooling agent than menthol, with less scent.
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.
A workhorse emulsifier that holds oil and water together in a cream.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
Emollients fill and smooth the surface of the strand, which lowers the friction that lifts the cuticle and reads as roughness.
A gentle preservative helper that also holds a little moisture.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
Humectants bind water into the strand, and water — not oil — is what makes dry hair flexible instead of brittle.
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 mineral salt used in trace amounts to stabilise the formula.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
Binds the calcium and magnesium in hard water, which is what stops mineral deposits accumulating on the strand wash after wash.
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.
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.
A certified colour that tints the product itself. It does not colour hair.
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 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.
Ingredient list captured 2026-08-22. Formulas change — check the package in your hand when an ingredient matters to you.
Price · 8 oz
Priced above the products that do the same job. Stores sell it above the $21 line; products that do this job typically go for about $38 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
It costs more per ounce than 98% of the 94 co-washes we’ve priced, and the formula carries the systems the format is built around. Nothing in our library comes close enough on formula to be a cheaper substitute.
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.
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 who want a formula with no added fragrance and washing without sulfates
Worth skipping for anyone sensitive to fragrance, anyone who wants a squeaky-clean feel, or anyone who needs to clarify regularly
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
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.
Neutralizes brassiness and yellowing of lighter tones
This is a marketing claim; an ingredient list cannot speak to it.
—
Can’t be confirmed from label.
Doubles the color protection of New Wash Original and New Wash Rich
It avoids sulfate detergents, which are the usual cause of fast fade.
Less fade per wash.
Shields hair from UV rays and repeated washing
Antioxidants are present, which is not the same as a UV filter.
Indirect help, not a filter.
Prevents color fade between salon appointments
It avoids sulfate detergents, which are the usual cause of fast fade.
Less fade per wash.
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.
Convenience of a premixed purple toning wash is valued by customers who previously had to manually mix a separate purple booster into New Wash
existing New Wash customers switching from the separate Purple Color Boost add-inEffectively neutralizes brassiness and yellow tones on gray, silver, and blonde hair, with several reviewers reporting a longer-lasting, cooler color result between salon visits
reviewers with gray/silver or color-treated hairSome reviewers with dry or fine hair find the Original-base Purple formula not moisturizing enough and want a Rich-formula purple option, needing extra conditioning on ends
reviewers with dry, fine, or color-treated hairReviewers in hard-water areas report hair feeling weighed down, greasy, or coated rather than clean, echoing the same hard-water complaint seen on other New Wash variants
reviewers in hard water regionsEffect is described as subtle by some, working best as an occasional brassiness fix rather than a strong dramatic toner when used every wash
reviewers with gray hair using it routinely