Kérastase
Kérastase Genesis Bain Hydra-Fortifiant Shampoo
Medium risk58/100
Kérastase
Genesis Anti Hair-Fall Fortifying Serum
Hair Serums
This formula needs extra consideration during pregnancy. Review the flagged ingredients with your healthcare professional.
30 of 30 ingredients rated
Is it suitable during pregnancy?
MamaSkin rates the recorded formula for Kérastase Genesis Anti Hair-Fall Fortifying Serum as Medium risk (57/100). Discuss the flagged ingredients with a qualified healthcare professional before using this formula during pregnancy.
Why this rating?
The recorded formula includes 4 ingredient entries with risk flags: Benzyl Salicylate (Medium risk), BHT (Medium risk), Resveratrol (Low risk), plus others listed in the breakdown. These are ingredient-level flags; they do not replace the stored product assessment or account for every formulation detail.
30 of 30 ingredient entries on this page have a recorded score, evidence summary and source text. That describes documentation coverage, not proof that the finished formula has been clinically tested during pregnancy.
How we assess productsIngredient breakdown
The recorded formula, with evidence behind each rating. Unmatched ingredients are marked Not assessed in grey.
Ingredient ratings and evidence
Higher-risk flags first. Open an ingredient for evidence.
Benzyl Salicylate
Medium risk
Benzyl salicylate is a fragrance ingredient that is also evaluated for potential endocrine activity and sensitisation. SCCS notes some indications for endocrine mode of action, and fragrance allergens are relevant for contact allergy risk; pregnancy-specific human outcome data for topical exposure are limited. The medium-risk signal is endocrine-related uncertainty and sensitisation potential rather than a defined pregnancy-specific toxicity dataset.
Sources: SCCS/1656/23: Benzyl salicylate https://health.ec.europa.eu/publications/benzyl-salicylate-cas-no-118-58-1-ec-no-204-262-9_en
BHT
Medium risk
BHT (butylated hydroxytoluene) is a lipophilic antioxidant used to protect oils from oxidation. Animal studies at high (primarily oral) doses show liver enzyme induction and related biochemical changes; endocrine-screening lines of evidence have also been evaluated in regulatory reviews. Pregnancy-specific human outcome data for topical cosmetic exposure are limited; the key signal is systemic toxicology at higher exposures and uncertainty for pregnancy-specific outcomes.
Sources: SCCS/1636/21: Butylated hydroxytoluene https://health.ec.europa.eu/publications/butylated-hydroxytoluene-bht_en
Parfum
Low risk
Umbrella term for an undisclosed fragrance blend. It’s not usually a pregnancy-specific concern at normal cosmetic use levels, but the exact components and concentrations aren’t fully disclosed on the label, so we score it more conservatively. If you prefer maximum transparency (or you’re sensitive to fragrance compounds), choose fragrance-free/unscented products.
Sources: SCCS: Fragrance allergens in cosmetic products https://health.ec.europa.eu/latest-updates/sccs-new-opinion-fragrance-allergens-cosmetic-products-2012-07-31_en
Resveratrol
Low risk
Resveratrol is a polyphenolic antioxidant used in topical skincare. A high-dose dietary study in pregnant nonhuman primates reported an unexplained alteration in fetal pancreatic development and cautioned against resveratrol supplementation during pregnancy. Topical delivery studies indicate substantially lower and largely skin-localised exposure. MamaSkin therefore applies a precautionary Low Risk classification rather than treating topical cosmetic use like oral supplementation.
Sources: PubMed: Beneficial and cautionary outcomes of resveratrol supplementation in pregnant nonhuman primates https://pubmed.ncbi.nlm.nih.gov/24563374/; PubMed: Topical delivery and skin disposition of resveratrol https://pubmed.ncbi.nlm.nih.gov/28389713/; LactMed: Resveratrol https://www.ncbi.nlm.nih.gov/books/NBK501879/.
Water
No known risks
Water (Aqua) is the standard purified water used as a cosmetic solvent. It has no pregnancy-specific risk in normal topical use.
Sources: https://pubchem.ncbi.nlm.nih.gov/compound/Water, https://single-market-economy.ec.europa.eu/sectors/cosmetics/cosmetic-ingredient-database/cosing-glossary-ingredients_en
Show all 30 ingredients
Alcohol Denat.
No known risks
Volatile solvent used to improve texture, drying time, and penetration in some formulas. Reviewed cosmetic safety sources support current cosmetic use, with no pregnancy- or breastfeeding-specific topical concern identified in the material reviewed; the main practical issue is dryness, stinging, or barrier disruption in some users.
Sources: CIR: Safety Assessment of SD Alcohol 40, Benzyl Alcohol, and Denatured Alcohol in Cosmetic Products; EU CosIng / cosmetics regulatory inventory
Diaminopyrimidine Oxide
No known risks
Also called Aminexil or Kopexil, this cosmetic scalp ingredient is not minoxidil. The European scientific committee assessed a 1.5% scalp solution and supported its stated cosmetic use after evaluating reproductive toxicity, other toxicity and skin absorption information. No pregnancy-specific harm has been identified for that cosmetic use; direct human pregnancy studies are limited. This is not proof of safety at every concentration or a pregnancy-safe percentage. Avoid damaged scalp, raw ingredient and direct infant contact; stop if irritation occurs.
Sources: https://ec.europa.eu/health/scientific_committees/consumer_safety/opinions/sccnfp_opinions_97_04/sccp_out115_en.htm, https://www.ncbi.nlm.nih.gov/sites/books/NBK618296/pdf/Bookshelf_NBK618296.pdf, https://pubchem.ncbi.nlm.nih.gov/compound/Aminexil
Ammonium Polyacryloyldimethyl Taurate
No known risks
A high-molecular-weight polymer used to thicken and stabilise formulas. Cosmetic safety reviewers concluded that acryloyldimethyltaurate polymers are safe in current cosmetic practices. Absorption of the finished polymer is expected to be limited, with residual monomers controlled during manufacture.
Sources: CIR: Safety Assessment of Acryloyldimethyltaurate Polymers as Used in Cosmetics; final report April 2017 https://cir-safety.org/sites/default/files/QRT-Update-Dec2025.pdf
Aminomethyl Propanol
No known risks
An alkanolamine used mainly to adjust product pH. Cosmetic safety reviewers concluded that aminomethyl propanol is safe in current cosmetic use at the reviewed concentrations. Formulators should control secondary-amine impurities and should not combine it with nitrosating agents. No pregnancy-specific concern is identified for normal use of a properly formulated finished cosmetic.
Sources: CIR: Final Amended Report on the Safety Assessment of Aminomethyl Propanol and Aminomethyl Propanediol https://cir-reports.cir-safety.org/view-attachment/?id=62ee6359-8e74-ec11-8943-0022482f06a6
Citric Acid
No known risks
pH adjuster used in small amounts to maintain product stability. Not associated with pregnancy-specific concerns.
Sources: Scientific Committee on Consumer Safety (EU); European cosmetics regulatory framework
PEG-40 Hydrogenated Castor Oil
No known risks
Solubilizer and emulsifier used to disperse oils and fragrance components in cosmetic formulas. Reviewed cosmetic safety sources support normal topical use, with no pregnancy- or breastfeeding-specific concern identified.
Sources: CIR cosmetic ingredient safety references for PEG castor oil derivatives; EU CosIng / cosmetics regulatory inventory
Piroctone Olamine
No known risks
Piroctone Olamine is an antimicrobial and anti-dandruff ingredient. European scientific review supports restricted cosmetic use in rinse-off and other products at specified concentrations. No pregnancy- or breastfeeding-specific hazard was identified for normal topical use within those restrictions.
Sources: EU SCCNFP: Opinion concerning Piroctone Olamine https://ec.europa.eu/health/ph_risk/committees/sccp/documents/out162_en.pdf; EU Cosmetics Regulation Annex V; European Commission CosIng ingredient inventory.
Caffeine
No known risks
Methylxanthine used in cosmetics (e.g., de-puffing/firming and antioxidant support). No pregnancy-specific contraindications are identified for topical cosmetic use.
Sources: CIR (Methylxanthines); PubMed (NLM)
Arginine
No known risks
Amino acid used as a humectant, skin-conditioning agent, and pH-adjusting support ingredient. Reviewed cosmetic safety sources support normal topical use, with no pregnancy- or breastfeeding-specific topical signal identified in the material reviewed.
Sources: CIR: Safety Assessment of α-Amino Acids as Used in Cosmetics; EU CosIng / cosmetics regulatory inventory
Limonene
No known risks
Limonene is a common fragrance component used at low levels in cosmetics; it is not a pregnancy-specific concern in topical use, but it is a recognised fragrance allergen and may trigger irritation or sensitisation in some people, especially if the product oxidises over time.
Sources: EU/UK cosmetics (fragrance allergen labelling); IFRA; toxicology reviews
Niacinamide
No known risks
Niacinamide (vitamin B3) is widely used for barrier support and tone/texture benefits, and is generally considered safe in pregnancy and breastfeeding when used topically at cosmetic concentrations.
Sources: CIR; EU/UK Cosmetics Regulation
Pyridoxine Hcl
No known risks
A vitamin B ingredient or derivative used for skin or hair conditioning. These vitamins are normal nutrients and no pregnancy-specific concern was identified for the small topical exposure expected from a finished cosmetic. This assessment does not replace guidance about oral supplements or therapeutic doses.
Sources: NIH Office of Dietary Supplements vitamin fact sheets https://ods.od.nih.gov/factsheets/list-all/; CIR: Panthenol, Pantothenic Acid and Derivatives safety assessment https://www.cir-safety.org/supplementaldoc/safety-assessment-panthenol-pantothenic-acid-and-derivatives-used-cosmetics-1
Linalool
No known risks
Linalool is a common fragrance component used at low levels in cosmetics; it is not a pregnancy-specific concern in topical use, but it is a recognised fragrance allergen and may trigger irritation or sensitisation in some people, especially if the product oxidises over time.
Sources: EU/UK cosmetics (fragrance allergen labelling); IFRA; toxicology reviews
Safflower Glucoside
No known risks
A glucose and safflower-fatty-acid conditioning ingredient. Its defined components and related sugar-ester evidence do not identify a pregnancy-specific concern at ordinary topical use. Direct pregnancy studies of this ingredient are lacking.
Sources: https://kcia.or.kr/cid/search/ingd_view.php?no=781, https://journals.sagepub.com/doi/pdf/10.1177/10915818211016378, https://www.cir-safety.org/sites/default/files/facids042019finalrep.pdf
Coumarin
No known risks
An aromatic fragrance ingredient found naturally in some plants and also manufactured. It is subject to fragrance-allergen labelling because it can sensitise susceptible users; no pregnancy-specific concern is identified for normal topical cosmetic use.
Sources: European Commission: Fragrance allergens labelling https://single-market-economy.ec.europa.eu/sectors/cosmetics/cosmetic-products-specific-topics/fragrance-allergens-labelling_en; SCCS fragrance-allergen opinions
Citral
No known risks
A lemon-scented mixture of the aldehydes geranial and neral used in fragrance. Citral is a recognised skin sensitiser, but current cosmetic concerns relate to allergy and concentration rather than a pregnancy-specific hazard from normal topical use.
Sources: European Commission: Fragrance allergens labelling https://single-market-economy.ec.europa.eu/sectors/cosmetics/cosmetic-products-specific-topics/fragrance-allergens-labelling_en; SCCS fragrance-allergen opinions
Benzyl Alcohol
No known risks
Benzyl alcohol is used as a preservative and fragrance component in cosmetics; it is not a pregnancy-specific concern at typical topical exposure, but it can be irritating or sensitising for some individuals, particularly in leave-on products.
Sources: CIR; EU/UK Cosmetics Regulation; toxicology reviews
Xylitylglucoside
No known risks
A sugar-derived humectant commonly used with xylitol and anhydroxylitol to support skin hydration. Exact pregnancy-specific topical data are limited. Cosmetic safety assessments of the related saccharide mixture and xylitol did not identify a reproductive or pregnancy-specific concern at cosmetic exposure; available data primarily support local tolerance rather than proving pregnancy safety. No topical contraindication was identified in the reviewed material.
Sources: CIR: Safety Assessment of Saccharide Isomerate and Related Saccharides https://cir-safety.org/supplementaldoc/safety-assessment-anhydrogalactose-anhydroglucitol-anhydroxylitol-arabinose-psicose-; CIR: Safety Assessment of Mannitol, Sorbitol, and Xylitol https://www.cir-safety.org/sites/default/files/xylito122019FR.pdf
Citronellol
No known risks
A rose-like fragrance ingredient that occurs naturally in many essential oils and may also be manufactured. Its main cosmetic concern is contact allergy in susceptible users; no pregnancy-specific hazard is identified for normal topical cosmetic exposure.
Sources: European Commission: Fragrance allergens labelling https://single-market-economy.ec.europa.eu/sectors/cosmetics/cosmetic-products-specific-topics/fragrance-allergens-labelling_en; SCCS fragrance-allergen opinions
Benzyl Benzoate
No known risks
A fragrance ingredient, solvent and fixative that also occurs naturally in some essential oils. It is a labelled fragrance allergen and may irritate or sensitise susceptible users, but no pregnancy-specific concern is identified for normal topical cosmetic exposure.
Sources: European Commission: Fragrance allergens labelling https://single-market-economy.ec.europa.eu/sectors/cosmetics/cosmetic-products-specific-topics/fragrance-allergens-labelling_en; SCCS fragrance-allergen opinions
Anhydroxylitol
No known risks
Sugar-derived humectant used to support hydration, often as part of saccharide blends. Reviewed cosmetic safety sources support normal topical use, with no pregnancy- or breastfeeding-specific topical signal identified in the material reviewed.
Sources: CIR: Safety Assessment of Saccharide Humectants / Saccharide Isomerate, etc.; EU CosIng / cosmetics regulatory inventory
Xylitol
No known risks
Sugar alcohol humectant used to help maintain hydration and improve skin feel. Reviewed cosmetic safety sources support normal topical use, with no pregnancy- or breastfeeding-specific topical signal identified in the material reviewed.
Sources: CIR: Safety Assessment of Mannitol, Sorbitol, and Xylitol as Used in Cosmetics; EU CosIng / cosmetics regulatory inventory
Zingiber Officinale Root Extract
No known risks
A ginger root extract used mainly for skin conditioning and fragrance support. Cosmetic safety reviewers concluded that the assessed Zingiber officinale root-derived ingredients are safe in current practices when formulated to be non-sensitising. This topical cosmetic conclusion should not be read as advice about ingesting concentrated ginger supplements.
Sources: CIR: Safety Assessment of Zingiber officinale (Ginger)-Derived Ingredients as Used in Cosmetics https://www.cir-safety.org/supplementaldoc/safety-assessment-zingiber-officinale-ginger-%E2%80%93-derived-ingredients-used-cosmetics-0
Tocopherol
No known risks
Vitamin E antioxidant used to protect oils and support the skin barrier. Not associated with pregnancy-specific concerns at cosmetic exposure.
Sources: Cosmetic Ingredient Review (US); Scientific Committee on Consumer Safety (EU)
Sodium Citrate
No known risks
Buffering and chelating ingredient used to control pH and formulation stability. Reviewed cosmetic safety sources support normal topical use, with no pregnancy- or breastfeeding-specific topical signal identified in the material reviewed.
Sources: CIR: Safety Assessment of Citric Acid, Inorganic Citrate Salts, and Alkyl Citrate Esters as Used in Cosmetics; EU CosIng / cosmetics regulatory inventory
Full recorded ingredient list
Water, Alcohol Denat., Diaminopyrimidine Oxide, Ammonium Polyacryloyldimethyl Taurate, Aminomethyl Propanol, Citric Acid, PEG-40 Hydrogenated Castor Oil, Piroctone Olamine, Caffeine, Arginine, Limonene, Niacinamide, Pyridoxine Hcl, Linalool, Safflower Glucoside, Benzyl Salicylate, Coumarin, Citral, Benzyl Alcohol, Xylitylglucoside, Citronellol, Benzyl Benzoate, Anhydroxylitol, Xylitol, Zingiber Officinale Root Extract, Resveratrol, Tocopherol, BHT, Sodium Citrate, Parfum
Ingredient ratings refreshed 15 October 2026. Formulas vary by market and can change. Always compare with your packaging.
Questions about this assessment
Why does Kérastase Genesis Anti Hair-Fall Fortifying Serum have a Medium risk rating?
The recorded formula includes 4 ingredient entries with risk flags: Benzyl Salicylate (Medium risk), BHT (Medium risk), Resveratrol (Low risk), plus others listed in the breakdown. These are ingredient-level flags; they do not replace the stored product assessment or account for every formulation detail. The product score is a stored assessment, not a clinical safety guarantee.
Does the niacinamide rating cover every ingredient in this product?
No. Niacinamide appears in the recorded formula, but its individual rating applies to that ingredient, not automatically to the whole product. Check the other ingredient ratings, any grey Not assessed entries and the stored product assessment. A niacinamide percentage or a product name is not a substitute for checking the full list.
Has every ingredient in Kérastase Genesis Anti Hair-Fall Fortifying Serum been assessed?
30 of 30 ingredient entries on this page have a recorded score, evidence summary and source text. That describes documentation coverage, not proof that the finished formula has been clinically tested during pregnancy.
Does this assessment apply to my Kérastase Genesis Anti Hair-Fall Fortifying Serum?
Only if the ingredient list on your packaging matches the recorded formula shown here. Formulas can differ by market and change over time. Compare the full list, not just the product name; report a mismatch if it differs.
Does this pregnancy assessment also establish breastfeeding suitability?
No. This page presents a pregnancy-focused product assessment. Do not infer a breastfeeding conclusion from its score or label; breastfeeding requires a separate assessment of the formula and how it is used.
