Formula · 5.7

Brand · 5.9

René Furterer · hydrolysed wheat protein · France

René Furterer Absolue Kératine Repair Mask

René Furterer Absolue Kératine Repair Mask
5.7

LabReadAI label score

How the score is calculated
  • Actives and evidence0.4Little evidence of effect
  • Completeness for the purpose0.5For “dry and damaged hair” — 53 %; without coconut oil — the only oil proven to reduce protein loss; could be added without conflict: coconut oil; a broad formula across 3 purposes
  • Tolerance0.9Rinse-off product; debatable groups: fragrance and its allergens (skin test positive in 13 of 100 tested)
  • adults
  • children
  • pregnancyallowed per the leaflet
  • gluten-freethis is a wheat protein — if you avoid wheat, choose another protein
  • acne-pronemay clog pores in leave-on face products
  • sensitive skinirritation possible
  • atopic skinfragrance is a common trigger
Free from:
  • alcohol (alcohol denat) · by the listthe list has no ingredient of the “denatured alcohol” group — evaporates fast and degreases; frequent contact can dry the skin — a tolerance question, not a regulatory one; does not clog pores
  • sulfates (SLS/SLES) · by the listthe list has no ingredient of the “ammonium laureth sulfate (ALES), ammonium lauryl sulfate (ALS), sodium coco-sulfate, sodium laureth sulfate (SLES), sodium lauryl sulfate (SLS), sodium myreth sulfate, TEA-lauryl sulfate” group — a cleansing surfactant from the sulfate family but with an ethoxylated chain: it cleanses more gently than lauryl sulfate. Still not for those looking for a sulfate-free product.
  • formaldehyde releasers · by the listthe list has no ingredient of the “formaldehyde releasers” group — preservatives that slowly release formaldehyde; allowed at low levels but a frequent cause of contact allergy
  • isothiazolinones (MIT/MCI) · by the listthe list has no ingredient of the “isothiazolinone preservatives (MIT/MCI)” group — preservatives; banned in EU leave-on products and limited in rinse-off (0.0015%) — a frequent cause of contact allergy
  • parabens · by the listthe list has no ingredient of the “parabens” group — preservatives; methyl- and ethylparaben are recognised as safe at permitted levels, propyl- and butyl- are limited by the EU to 0.14 %; a frequent buyer question rather than proven harm
  • mineral oils and petrolatum · by the listthe list has no ingredient of the “petrolatum and mineral oils” group — purified cosmetic-grade petroleum products: form a protective barrier film; safety is established, a preference question; 0–2 of 5 (depends on the raw-material source), cosmetic white oil per DiNardo (2005) is non-comedogenic
  • soap · by the listthe list has no ingredient of the “potassium soap (potassium cocoate), plant soap base (sodium palmate, sodium cocoate), tallow soap base (sodium tallowate)” group — liquid soap: fatty acids boiled with alkali. It cleanses well, but its acidity is around 9-10 against 5 for skin, which is why it often leaves tightness. The product is rinsed off, so the question is tolerance.
  • silicones · by the listthe list has no ingredient of the “silicones” group — form a smooth film and shine; inert and not absorbed — a preference question, not a safety one
  • gelatin in the coating · by the listthe list has no ingredient of the “vegetarian coating” group — a plant-based tablet coating instead of gelatin; it keeps moisture out and makes swallowing easier
  • toning dyes · by the listthe list has no ingredient of the “violet toning dyes” group — direct dyes that settle on the hair surface and cancel the yellow cast of blonde; they wash out in 1–3 washes and leave a lilac tint if left too long; HC Blue 2 and Disperse Violet 1 are known contact allergens of hair dyes
  • tar · by the listthe list has no ingredient of the “wood (birch) tar” group — a traditional remedy for dandruff and itching with a sharp smell; it reduces flaking, but can irritate a sensitive scalp and dries the hair
What for: Damaged hair is helped on two fronts: oils that penetrate the shaft (only coconut oil is proven) and a film on the outside — silicones, panthenol, hydrolysed proteins. One from each front is enough; “collagen” and “biotin” in a shampoo work only on the label.
When:
  • when washing, rinsed off
in a mask or conditioner after washing, along the length
When to expect an effect: smoothness — immediately, until the next wash

Ingredients — 29 components · 1 works

What works: 1 of 29 ingredients: hydrolysed wheat protein. Damaged hair is helped on two fronts: oils that penetrate the shaft (only coconut oil is proven) and a film on the outside — silicones, panthenol, hydrolysed proteins. One from each front is enough; “collagen” and “biotin” in a shampoo work only on the label.

Strengths: tolerance

What lowers the score: actives and evidence: little evidence of effect; completeness for the purpose: for “dry and damaged hair” — 53 %

Questions: fragrance and its allergens: alpha-isomethyl ionone, fragrance, limonene, linalool — the fragrance and its aromatic components; the EU requires 26 of them to be listed separately — matters to people allergic to fragrance, does not affect how the product works

  • WATER (AQUA base: coating, fillers · water — the solvent and base; listed first because there is more of it than anything else; in supplements — part of the capsule shell
  • CETEARYL ALCOHOL base: coating, fillers · a fatty-alcohol blend (C16–C18), an emulsifier and thickener, does not dry the skin; paired with ceteareth-20 — 4 of 5; rarely clogs pores in leave-on face products
  • CAMELINA SATIVA SEED OIL base: coating, fillers · the plant base: emollient oils, waxes and care extracts
  • ETHYLHEXYL PALMITATE base: coating, fillers · a light emollient, gives slip; may clog pores in leave-on face products; a finished product with it is not always comedogenic
  • GLYCOL PALMITATE base: coating, fillers · keeps the water and oil parts from separating
  • PROPYLENE GLYCOL base: coating, fillers · humectants and solvents — hold water and help actives dissolve
  • CETEARETH-33 base: coating, fillers · washes oil and dirt off skin or hair
  • BEHENYL ALCOHOL base: coating, fillers · emulsifiers and thickeners; not “alcohol” in the everyday sense — they do not dry the skin; rarely clog pores
  • GLYCERIN base: coating, fillers · a humectant: coats the tablet, holds moisture in creams and shampoos; does not clog pores
  • HYDROLYZED WHEAT PROTEIN works · the active ingredient — what the product is for; form: wheat protein hydrolysate
  • ALPHA-ISOMETHYL IONONE questions · the fragrance and its aromatic components; the EU requires 26 of them to be listed separately — matters to people allergic to fragrance, does not affect how the product works
  • ARGININE HCL base: coating, fillers · amino acids, lipids and sugars akin to the skin’s own components — support for its barrier
  • BENZOIC ACID base: coating, fillers · protect the product from bacteria and mould; used within the EU-permitted concentrations
  • CAPRYLYL GLYCOL base: coating, fillers · a humectant that also holds bacteria back, which is why it often replaces part of the preservative.
  • CARAMEL base: coating, fillers · give the product its colour; do not affect how it works
  • CITRIC ACID base: coating, fillers · acidity regulator
  • FRAGRANCE (PARFUM questions · the fragrance and its aromatic components; the EU requires 26 of them to be listed separately — matters to people allergic to fragrance, does not affect how the product works
  • GLYCINE SOJA (SOYBEAN) SEED EXTRACT (GLYCINE SOJA SEED EXTRACT base: coating, fillers · the plant base: emollient oils, waxes and care extracts
  • GLYCINE SOJA (SOYBEAN) SEEDCAKE EXTRACT (GLYCINE SOJA SEEDCAKE EXTRACT base: coating, fillers · amino acids, lipids and sugars akin to the skin’s own components — support for its barrier
  • GUAR HYDROXYPROPYLTRIMONIUM CHLORIDE base: coating, fillers · hold the texture: gels, creams and foam do not separate
  • LIMONENE questions · the fragrance and its aromatic components; the EU requires 26 of them to be listed separately — matters to people allergic to fragrance, does not affect how the product works
  • LINALOOL questions · the fragrance and its aromatic components; the EU requires 26 of them to be listed separately — matters to people allergic to fragrance, does not affect how the product works
  • LYSINE HCL base: coating, fillers · makes hair softer and easier to comb
  • PEG-32 base: coating, fillers · coating glazing agent
  • PEG-400 base: coating, fillers · coating glazing agent
  • POLYQUATERNIUM-37 base: coating, fillers · hold the texture: gels, creams and foam do not separate
  • SODIUM BENZOATE base: coating, fillers · a preservative both in cosmetics and in supplements: a salt of benzoic acid that works in an acidic medium. Permitted as food additive E211 and in cosmetics up to 0.5 %.
  • TOCOPHEROL base: coating, fillers · vitamin E at hundredths of a percent: keeps the oils of the formula (a cream or a capsule fill) from going rancid; at that share it protects the product, it is not vitamin E as an active
  • TRISODIUM ETHYLENEDIAMINE DISUCCINATE base: coating, fillers · bind hard-water metals so the formula stays stable and the foam works
  • YELLOW 6 (CI 15985 base: coating, fillers · give the product its colour; do not affect how it works

René Furterer Absolue Kératine Repair Mask is a product whose active ingredient is hydrolysed wheat protein. The concentration is not declared, but the active sits above the 1 % line in the list — a working share is likely. There is little evidence of effect: a plant protein works as a film: the hair is temporarily smoother and less frizzy. Allergy is a separate matter: cases are described where wheat protein in cosmetics caused hives and severe reactions.. The formula has 29 ingredients, 1 of which does the work; the rest is the formula base. Worth noting: ALPHA-ISOMETHYL IONONE, FRAGRANCE (PARFUM, LIMONENE, LINALOOL (the fragrance and its aromatic components; the EU requires 26 of them to be listed separately — matters to people allergic to fragrance, does not affect how the product works). Damaged hair is helped on two fronts: oils that penetrate the shaft (only coconut oil is proven) and a film on the outside — silicones, panthenol, hydrolysed proteins. One from each front is enough; “collagen” and “biotin” in a shampoo work only on the label. By the list, no alcohol (alcohol denat), sulfates (SLS/SLES), formaldehyde releasers, isothiazolinones (MIT/MCI), parabens, mineral oils and petrolatum, soap, silicones, gelatin in the coating, toning dyes, tar. Suitable for: adults, children, pregnancy. gluten-free, acne-prone, sensitive skin, atopic skin — ask a doctor. wheat allergy, fragrance allergy — not without a doctor. Use: in a mask or conditioner after washing, along the length. When to expect an effect: smoothness — immediately, until the next wash. Label score — 5.7 out of 10 (little evidence of effect; for “dry and damaged hair” — 53 %; without coconut oil — the only oil proven to reduce protein loss; could be added without conflict: coconut oil; a broad formula across 3 purposes; rinse-off product; debatable groups: fragrance and its allergens (skin test positive in 13 of 100 tested)). Per the pack: for external use, apply to damp hair, avoid contact with the eyes. A restatement of the label, not an assessment.

Who it does not suit

  • wheat allergyhives and anaphylaxis to hydrolysed wheat in cosmetics are described
  • fragrance allergyrisk of reaction

When to stop: itching, rash, swollen lips or eyelids — stop and see a doctor

Per the maker's leaflet: Per the pack: for external use, apply to damp hair, avoid contact with the eyes. A restatement of the label, not an assessment.

Is this product right for your hair?

The score describes the formula, not your hair: a sulfate shampoo suits an oily scalp and fails a dry, sensitive one. Tell us about your hair, scalp and the problem — shedding, dandruff, oiliness, dryness — and we will build a routine and say whether this product suits you.

Hair care matchDecode my tests

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