Concept render, product in development
In development · not for sale yet
Hairmetry
Moisture Shampoo 250 ml
Soft cleanse for dry, wavy, curly and coily hair
- wavy hair
- curly hair
- coily hair
- dry scalp
- balanced scalp
- dryness
- dullness
- itchy scalp
Free tester with 2 or more products. Checkout opens at launch.
Prices are set at launch.
- How often
- Weekly (coily) to 3 times weekly
- You notice it
- From the first wash
- Every key ingredient links to a study
- No fragrance
Why it works
-
Sodium cocoyl glutamate (amino-acid cleanser)
One of the three best-tolerated of eight cleansers in a patch test of 105 patients. Chosen as a gentle base.
-
Sodium lauroyl oat amino acids (oat-derived cleanser)
Also one of the three best-tolerated in the same 105-patient patch test. Made from oat protein.
-
Sodium cocoyl isethionate (mild cleanser)
Forms clusters (micelles) larger than the water pores of skin in lab tests, a proposed reason for its mildness.
-
Glycerin
Repeated shampooing lowered the scalp's natural moisturizers in a pilot study. A review of skin data found glycerin improves hydration and barrier function. No scalp trial.
-
Panthenol (pro-vitamin B5)
Enters hair and raised its break stress in a lab test. On detergent-irritated skin, a panthenol cream sped up barrier repair versus plain cream.
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Cationic guar (detangling polymer)
A plant-based polymer that improved combing in shampoo tests. Guar can build up on hair, so use the Reset Shampoo now and then.
How to use it
- 1Work into the scalp only. Let the suds rinse through the lengths.
- 2Follow with a conditioner from mid-length to ends.
What's not in it
Added fragrance and fragrance allergens
Fragrance is a main cause of contact allergy. In one clinic series, 15.7% of dermatitis patients reacted to a fragrance. Linalool and limonene appear in about half of fragranced products.
Essential oils
Natural does not mean gentle. In 62,354 patch-tested clinic patients, 1.4% reacted to an essential oil alone. Ylang-ylang, sandalwood, jasmine, peppermint and oxidised tea tree oil led.
MI / MCI preservatives
MI drove a rise in contact allergy in Europe. EU banned it from leave-ons in 2017; rinse-off is capped at 15 ppm. About 3 in 100 tested patients react.
Formaldehyde-releasing preservatives
These preservatives slowly release formaldehyde, a known skin allergen. A 2022 clinical review says they still cause dermatitis, sometimes without being listed on the label.
Zinc pyrithione
Banned in EU cosmetics from March 2022 as toxic for reproduction (hazard class). EU experts judged it safe in rinse-off anti-dandruff shampoo up to 1%, but no exemption was granted.
Harsh sulfates in daily products
SLS is the standard irritant control in skin patch tests. A gentler cleanser, sodium lauroyl glutamate, irritated far less in 15 people. Fine for an occasional deep clean, not daily.
Drying alcohol in leave-ons
In 15 volunteers, strong alcohols lowered skin hydration without breaking the barrier. A mild effect, so a caution for dry or sensitive scalps. Fatty alcohols like cetyl alcohol are fine.
Coal tar
Coal tar can cause folliculitis, irritation and allergy, and contains carcinogens seen in animals and workers (patients show no clear tumour rise). A non-tar shampoo matched it in one trial.
Methyldibromo glutaronitrile
A preservative the EU banned in all cosmetics because allergy kept rising. In Denmark, positive allergy tests fell from 4.6% to 2.6% after the ban.
Full ingredient list (proposed formula)
Aqua, Sodium Cocoyl Glutamate, Disodium Cocoamphodiacetate, Sodium Lauroyl Oat Amino Acids, Sodium Cocoyl Isethionate, Glycerin, Betaine, Panthenol, Guar Hydroxypropyltrimonium Chloride, Sodium Chloride, Tetrasodium Glutamate Diacetate, Phenoxyethanol, Ethylhexylglycerin, Citric Acid, Sodium Hydroxide
A proposed formula for a product in development. Final levels are set by a cosmetic chemist and tested for stability and safety before any sale.
Frequently asked
How often can I use it?
Weekly (coily) to 3 times weekly.
Is it right for my hair type?
It is made for wavy, curly, coily hair. The Best for tags at the top list the scalp types and concerns it suits.
When will I notice a difference?
From the first wash.
Does it contain fragrance?
No. It has no added fragrance or essential oils, and the full ingredient list is on this page.
Is it medicine?
No. It is a cosmetic that cares for hair and scalp. It does not treat disease. For hair loss, talk to a doctor.
Can I buy it yet?
Not yet. It is in development, so the formula can still change. Checkout opens at launch.
Moisture Shampoo 250 ml
Complete the routine
Duo · 2 products
Shower Duo, Moisture
Moisture Shampoo and Rich Conditioner for wavy, curly and coily hair
A soft cleanse followed by a richer conditioner, for hair that dries out and tangles more easily.
Save 10% at launch
Routine · 4 products
Curl Routine
Wash, condition, define and dry gently, for wavy to coily hair
The four steps of a curl routine in the order you use them: cleanse, condition, define, then blot instead of rub.
Save 15% at launch
Sets are cosmetics for hair and scalp. They do not treat disease. For hair loss, talk to a doctor.
Pairs well with
Read more
- Curly and wavy hair care, simplyWash the scalp, condition the lengths, handle curls wet, and let gel set. A short routine for waves, curls and coils.
- How often should you wash your hair?Wash when your scalp is oily, itchy or flaky. That is every 1 to 2 days for straight hair and about weekly for coily hair.
All studies behind this product (15)
Corazza M et al. Irritant and sensitizing potential of eight surfactants commonly used in skin cleansers: an evaluation of 105 patients. Dermatitis. 2010
Tested: eight cleansing surfactants
Result: None caused irritation at the tested dilution; best tolerated were sodium cocoyl glutamate, sodium lauroyl oat amino acids and disodium cocoamphodiacetate.
Read the study ↗Lee CH, Kawasaki Y, Maibach HI. Effect of surfactant mixtures on irritant contact dermatitis potential in man: sodium lauroyl glutamate and sodium lauryl sulphate. Contact Dermatitis. 1994
Tested: sodium lauroyl glutamate, SLS, and mixtures
Result: Sodium lauroyl glutamate was much less irritating than SLS, and mixing it into SLS reduced SLS irritation.
Read the study ↗Ghosh S, Blankschtein D. Why is sodium cocoyl isethionate (SCI) mild to the skin barrier? An in vitro investigation based on the relative sizes of the SCI micelles and the skin aqueous pores. J Cosmet Sci. 2007
Result: Sodium cocoyl isethionate forms micelles of about 33.5 angstroms, larger than skin aqueous pores (about 29 angstroms), which the authors proposed explains its mildness.
Read the study ↗Fluhr JW, Darlenski R, Surber C. Glycerol and the skin: holistic approach to its origin and functions. Br J Dermatol. 2008
Result: Glycerol improves skin hydration, barrier function and protection against irritants, and helps dry, barrier-damaged skin such as in atopic dermatitis. A review of skin data, not hair or scalp trials.
Read the study ↗Kourbaj G, Bielfeldt S, Kruse I, Wilhelm KP. Confocal Raman spectroscopy is suitable to assess hair cleansing-derived skin dryness on human scalp. Skin Res Technol. 2022
Tested: repeated washing with a standard shampoo
Result: Repeated shampooing lowered the scalp's natural moisturizing factor (the skin's own water-holding molecules) and lipids. Pilot study from a testing institute.
Read the study ↗Becker LC, Bergfeld WF, Belsito DV et al. Safety assessment of glycerin as used in cosmetics. Int J Toxicol. 2019
Result: The Cosmetic Ingredient Review panel judged glycerin safe as used in cosmetics, where it acts as a humectant and hair conditioner.
Read the study ↗Marsh JM et al. Strengthening benefits of panthenol for hair: mechanistic evidence from advanced spectroscopic techniques. Int J Cosmet Sci. 2026
Result: Labelled panthenol penetrated into cortical protein regions and raised break stress and elastic modulus, probably through hydrogen bonding.
Read the study ↗Proksch E, Nissen HP. Dexpanthenol enhances skin barrier repair and reduces inflammation after sodium lauryl sulphate-induced irritation. J Dermatolog Treat. 2002
Tested: dexpanthenol cream versus plain cream vehicle, twice daily
Result: Barrier repair and hydration improved faster and redness fell more with the dexpanthenol cream than with the vehicle. A leave-on cream on skin, not a rinse-off shampoo.
Read the study ↗Hossel P et al. Conditioning polymers in today's shampoo formulations: efficacy, mechanism and test methods. Int J Cosmet Sci. 2000
Result: Polyquaternium-7, polyquaternium-10 and cationic guar all improved combing, but differed in build-up and removability.
Read the study ↗McMullen RL et al. Investigation of the interactions of cationic guar with human hair by electrokinetic analysis. Int J Cosmet Sci. 2021
Tested: cationic guar compared with behentrimonium chloride and polyquaternium-28
Result: Guar molecular weight set adsorbed layer thickness and charge density set surface charge; anionic surfactant sorption was quicker on African, grey European and mixed hair than on Chinese, dark European and Indian hair.
Read the study ↗Nicander I, Rantanen I, Rozell BL, Söderling E, Ollmar S. The ability of betaine to reduce the irritating effects of detergents assessed visually, histologically and by bioengineering methods. Skin Res Technol. 2003
Tested: sodium lauryl sulfate or cocamidopropyl betaine with and without betaine
Result: Adding betaine lowered the irritant reaction to both detergents. Short patch test on forearm skin, not a shampoo trial.
Read the study ↗Fajuyigbe D, et al. Weekly hair washing: the recommended solution for women with afro-textured hair to alleviate dandruff and scalp discomfort. J Dermatol. 2024
Result: In South African women with afro-textured hair, dandruff and itch returned to their peak about a week after washing.
Read the study ↗Gavazzoni Dias MF et al. The Shampoo pH can Affect the Hair: Myth or Reality? Int J Trichology. 2014
Result: 38% were at or below pH 5.5 and 62% above; 81% of 26 anti-dandruff shampoos and all children's shampoos were above 5.5 (range 3.5-9.0). Alkaline pH may raise fibre charge, friction and cuticle damage; a measurement and mechanism review, not a wear trial.
Read the study ↗Burnett CL, Bergfeld WF, Belsito DV et al. Safety assessment of tetrasodium glutamate diacetate and beta-alanine diacetic acid as used in cosmetics. Int J Toxicol. 2025
Result: The Cosmetic Ingredient Review panel judged tetrasodium glutamate diacetate (GLDA), a chelator that binds metal ions, safe as used in cosmetics.
Read the study ↗Dréno B, Zuberbier T, Gelmetti C, Gontijo G, Marinovich M. Safety review of phenoxyethanol when used as a preservative in cosmetics. J Eur Acad Dermatol Venereol. 2019
Result: Phenoxyethanol is a rare sensitizer with only a weak effect on skin's own microbes. EU experts judge it safe for all consumers, children included, at up to 1% as a preservative.
Read the study ↗