Formula · 7.6

Brand · 6.7

Kapous Professional · hydrolysed keratin on silicones · Spain

Kapous Dual Renascence 2 Phase moisturising serum for hair repair

Kapous Dual Renascence 2 Phase moisturising serum for hair repair
7.6

LabReadAI label score

How the score is calculated
  • Actives and evidence0.4Little evidence of effect
  • Completeness for the purpose1.0For “dry and damaged hair” — 100 %; without coconut oil — the only oil proven to reduce protein loss; could be added without conflict: coconut oil; a broad formula across 3 purposes
  • Cleansing base0.8Mild surfactants: mild surfactants and emulsifiers; irritation potential of the base — 15 % of SLS; film: silicones
  • Tolerance1.0No ingredients from irritant or allergen lists
  • adults
  • children
  • pregnancyallowed per the leaflet
  • colour-treated hair
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
  • fragrance · by the listthe list has no ingredient of the “fragrance and its allergens” group — 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
  • 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.
  • 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:
  • leave-on
in a mask or conditioner after washing, along the length
When to expect an effect: smoothness — right after use, until the next wash
What is normal: with frequent use the hair may feel stiffer

Ingredients — 19 components · 1 works

What works: 1 of 19 ingredients: hydrolysed keratin. 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: completeness for the purpose, cleansing base, tolerance

What lowers the score: actives and evidence: little evidence of effect

Questions: no debatable ingredients in the formula

  • Aqua (Water 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
  • Cyclopentasiloxane base: coating, fillers · form a smooth film and shine; inert and not absorbed — a preference question, not a safety one
  • Dimethicone base: coating, fillers · form a smooth film and shine; inert and not absorbed — a preference question, not a safety one
  • Caprylyl Glycol base: coating, fillers · a humectant that also holds bacteria back, which is why it often replaces part of the preservative.
  • Cetyl PEG/PPG-10/1 Dimethicone base: coating, fillers · form a smooth film and shine; inert and not absorbed — a preference question, not a safety one
  • Phenyl Trimethicone base: coating, fillers · form a smooth film and shine; inert and not absorbed — a preference question, not a safety one
  • Hydrolyzed Keratin works · the active ingredient — what the product is for; form: keratin hydrolysate
  • Amodimethicone base: coating, fillers · form a smooth film and shine; inert and not absorbed — a preference question, not a safety one
  • Polyquaternium-28 base: coating, fillers · leaves a thin film on skin or hair
  • Dimethiconol base: coating, fillers · form a smooth film and shine; inert and not absorbed — a preference question, not a safety one
  • Lactic Acid base: coating, fillers · tune the acidity and texture; salt is a common shampoo thickener
  • Sodium Chloride base: coating, fillers · tune the acidity and texture; salt is a common shampoo thickener
  • Polysorbate 20 base: coating, fillers · cleanse and bind water with oils; milder than the sulfate ones
  • Cetrimonium Chloride base: coating, fillers · soften, condition and carry the actives; the backbone of the texture
  • Benzophenone-4 base: coating, fillers · absorbs or reflects ultraviolet light to protect the skin
  • Ethylhexylglycerin base: coating, fillers · a preservative booster and skin-conditioning ingredient: it barely preserves on its own but helps phenoxyethanol work and lowers the amount needed.
  • CI 42090 (FD&C Blue 1 base: coating, fillers · give the product its colour; do not affect how it works
  • Phenoxyethanol base: coating, fillers · the most widespread cosmetic preservative: it keeps the product sterile. Permitted in the EU up to 1 %, recognised as safe at that level.
  • Potassium Sorbate base: coating, fillers · a mild preservative against mould and yeast: used both in cosmetics and in foods and supplements (E202).
  • 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 %.

Kapous Dual Renascence 2 Phase moisturising serum for hair repair is a product whose active ingredient is hydrolysed keratin. The concentration is not declared and the active sits after the 1 % line — more for the label than for the effect. There is little evidence of effect: protein fragments settle on damaged spots of the hair: for a while it is smoother and breaks less. This does not rebuild the hair structure — the effect lasts until the next wash.. The formula has 19 ingredients, 1 of which does the work; the rest is the formula base. 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), fragrance, parabens, mineral oils and petrolatum, soap, gelatin in the coating, toning dyes, tar. Suitable for: adults, children, pregnancy, colour-treated hair. Use: in a mask or conditioner after washing, along the length. When to expect an effect: smoothness — right after use, until the next wash. Label score — 7.6 out of 10 (little evidence of effect; mild surfactants: mild surfactants and emulsifiers; irritation potential of the base — 15 % of sls; film: silicones). Per the pack: for external use only; stop if irritation appears. A restatement of the label, not an assessment.

Who it does not suit

Per the maker's leaflet: Per the pack: for external use only; stop if irritation appears. 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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