
Concept render, product in development
In development · not for sale yet
Hairmetry
Curl Cream 150 ml
Styling cream for wavy, curly and coily hair
- wavy hair
- curly hair
- coily hair
- oily scalp
- balanced scalp
- dry scalp
- flaky or itchy scalp
- poor curl definition
- frizz
- dryness
- tangles
Free tester with 2 or more products. Checkout opens at launch.
Prices are set at launch.
- How often
- Every wash, as your styler
- You notice it
- Same day, as you style
- Every key ingredient links to a study
- No fragrance
Why it works
-
Polyacrylate-2 crosspolymer (curl-hold polymer)
Lab work on this polymer showed that how well the film grips hair and holds together sets how well curls keep their shape in humid air.
-
Camellia seed oil
A Procter and Gamble study found it enters the lipid-rich cement between hair cells and raised single-fibre fatigue strength.
-
Hydrolyzed keratin (wool protein fragments)
Mid-size and large keratin fragments raised stiffness and cut breakage in very curly, relaxed hair in a lab test.
-
Panthenol (pro-vitamin B5)
A small molecule that enters hair and probably binds to its protein. In a Procter and Gamble lab test it raised break stress and stiffness.
-
Flaxseed extract
Flax gum is a water-binding, gel-forming sugar polymer. No study tested it for curl definition, so it is here for feel and slip.
How to use it
- 1Smooth through soaking-wet hair in sections, then scrunch upward.
- 2Leave it alone until fully dry. Do not touch.
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.
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, Camellia Oleifera Seed Oil, Cetearyl Alcohol, Cetearyl Olivate, Sorbitan Olivate, Panthenol, Linum Usitatissimum Seed Extract, Polyacrylate-2 Crosspolymer, Hydrolyzed Keratin, Phenoxyethanol, Aminomethyl Propanol, Ethylhexylglycerin, Tocopherol
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?
Every wash, as your styler.
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?
Same day, as you style.
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.
Curl Cream 150 ml
Complete the routine
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
All studies behind this product (7)
Wade Rafferty D et al. Polymer composite principles applied to hair styling gels. J Cosmet Sci. 2008
Tested: polyacrylate-2 crosspolymer films with different neutralisers
Result: The neutraliser changes the film (plasticising or hardening it), and both adhesion to hair and film cohesion determine stiffness and high-humidity curl retention.
Read the study ↗Marsh JM et al. Penetration of oils into hair. Int J Cosmet Sci. 2024
Tested: pure plant triglyceride oils including coconut, Camellia oleifera and safflower
Result: Several plant oils entered the hair's lipid-rich cement and improved single-fibre fatigue strength; shorter and unsaturated chains penetrated better.
Read the study ↗Malinauskyte E et al. Penetration of different molecular weight hydrolysed keratins into hair fibres and their effects on the physical properties of textured hair. Int J Cosmet Sci. 2021
Tested: single-fibre tensile and thermal tests after peptide treatment
Result: Small and mid-size peptides entered the cortex, the biggest stayed on the surface; mid and large keratin peptides raised stiffness and cut breakage at 20% and 80% humidity.
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 ↗Scott LN, Fiume M, Bergfeld WF et al. Safety assessment of panthenol, pantothenic acid, and derivatives as used in cosmetics. Int J Toxicol. 2022
Result: The Cosmetic Ingredient Review panel judged panthenol and pantothenic acid safe as used in cosmetics, where they act as hair conditioners and humectants.
Read the study ↗Puligundla P, Lim S. A Review of Extraction Techniques and Food Applications of Flaxseed Mucilage. Foods. 2022
Result: Flaxseed mucilage is mainly an arabinoxylan plus an acidic pectin-like part, with water-binding and flow properties comparable to gum arabic.
Read the study ↗Camargo FB Jr et al. Prevention of chemically induced hair damage by means of treatment based on proteins and polysaccharides. J Cosmet Dermatol. 2022
Tested: silk-protein plus linseed-polysaccharide treatment
Result: Better tensile resistance and luster after bleach and colour; the effect cannot be attributed to flax alone.
Read the study ↗

