Kérastase
Kérastase Genesis Anti Hair-Fall Fortifying Serum
Medium risk57/100
Kérastase
Elixir Ultime L'Huile Original Hair Oil
Hair Oils
Some ingredients carry a low-risk flag. Read the formulation context before deciding.
19 of 19 ingredients rated
Is it suitable during pregnancy?
MamaSkin rates the recorded formula for Kérastase Elixir Ultime L'Huile Original Hair Oil as Low risk (75/100). Review the ingredient context and any manual-review explanation before deciding.
Why this rating?
The recorded formula includes 2 ingredient entries with risk flags: Dimethicone (Low risk), Parfum (Low risk). These are ingredient-level flags; they do not replace the stored product assessment or account for every formulation detail.
19 of 19 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.
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
Dimethicone
Low risk
Dimethicone is a silicone polymer used as a skin protectant and slip/conditioning agent. It is considered inert with minimal dermal absorption; the main practical issues are cosmetic (feel) and occasional irritation in very sensitive users. It is not a pregnancy-specific concern in topical cosmetic use.
Sources: CIR: Amended Safety Assessment of Dimethicone, Methicone, and Substituted-Methicone Polymers as Used in Cosmetics https://cir-safety.org/supplementaldoc/amended-safety-assessment-dimethicone-methicone-and-substituted-methicone-polymers-2
Isododecane
No known risks
Volatile emollient/solvent used for slip, quick-dry texture and makeup wear. Reviewed cosmetic ingredient references support normal topical use, with no pregnancy- or breastfeeding-specific topical concern identified.
Sources: CIR: Safety Assessment of Isoparaffins as Used in Cosmetics; EU CosIng / cosmetics regulatory inventory
Dimethiconol
No known risks
A high-molecular-weight silicone polymer used for film forming, smoothing and skin or hair conditioning. The Cosmetic Ingredient Review concluded that Dimethiconol and its assessed derivatives are safe in current cosmetic use. Its polymeric nature limits skin penetration, and available evidence does not identify a pregnancy- or breastfeeding-specific concern for normal topical exposure.
Sources: CIR: Safety Assessment of Dimethiconol and its Esters and Reaction Products; International Journal of Toxicology 36(Suppl. 3):31-50 (2017) https://cir-safety.org/ingredient/dimethiconol
Camellia Oleifera Seed Oil
No known risks
A plant-derived fatty oil or butter used mainly as an emollient, conditioning ingredient or texture agent. Cosmetic safety reviewers concluded that the assessed plant-derived fatty acid oils are safe in current practices of use and concentration. This conclusion applies to cosmetic-grade fixed oils rather than similarly named volatile essential oils. Seed or food allergy may still matter for a susceptible person.
Sources: CIR: Safety Assessment of Plant-Derived Fatty Acid Oils as Used in Cosmetics https://cir-reports.cir-safety.org/view-attachment/?id=ad62ac6b-8e74-ec11-8943-0022482f06a6
Show all 19 ingredients
Zea Mays Germ Oil
No known risks
zea mays germ oil is a fixed or hydrogenated cosmetic oil used mainly as an emollient. This assessment concerns normal topical cosmetic exposure, not ingestion or concentrated essential oils. Cosmetic-grade purity and oxidation control remain important; no pregnancy-specific topical concern was identified.
Sources: CIR safety assessments of plant-derived fatty acid oils and hydrogenated oils https://cir-reports.cir-safety.org/view-attachment?id=ad62ac6b-8e74-ec11-8943-0022482f06a6; European Commission CosIng
Argania Spinosa Kernel Oil
No known risks
Argan oil is a plant-derived emollient oil used for skin and hair conditioning. Normal topical cosmetic use has no known pregnancy- or breastfeeding-specific concern; users with plant/nut sensitivities should follow personal tolerance.
Sources: CIR: Safety Assessment of Plant-Derived Fatty Acid Oils as Used in Cosmetics; EU CosIng / cosmetics regulatory inventory
Sclerocarya Birrea Seed Oil
No known risks
A plant-derived fatty oil or butter used mainly as an emollient, conditioning ingredient or texture agent. Cosmetic safety reviewers concluded that the assessed plant-derived fatty acid oils are safe in current practices of use and concentration. This conclusion applies to cosmetic-grade fixed oils rather than similarly named volatile essential oils. Seed or food allergy may still matter for a susceptible person.
Sources: CIR: Safety Assessment of Plant-Derived Fatty Acid Oils as Used in Cosmetics https://cir-reports.cir-safety.org/view-attachment/?id=ad62ac6b-8e74-ec11-8943-0022482f06a6
Pentaclethra Macroloba Seed Oil
No known risks
For ordinary, correctly formulated topical cosmetic use, no pregnancy-specific harm has been identified for pentaclethra macroloba seed oil. This expressed seed oil is distinct from bark extracts and raw seeds; supplier quality and skin irritation remain relevant. Direct pregnancy studies of this exact material are limited; this assessment does not cover ingestion, medicinal-strength use, damaged skin, or aerosol exposure.
Sources: https://precision.fda.gov/uniisearch/srs/unii/om0bav5397
Caprylic/Capric Triglyceride
No known risks
Common emollient derived from fatty acids and glycerin. Used to soften skin and improve texture without pregnancy-specific concerns.
Sources: Cosmetic Ingredient Review (US); Scientific Committee on Consumer Safety (EU)
Camelina Sativa Seed Oil
No known risks
A plant-derived fixed oil, butter or oil extract used as an emollient. Concerns focus on oxidation, irritation and source allergy; no pregnancy-specific hazard was identified for normal topical exposure.
Sources: CIR Safety Assessment of Plant-Derived Fatty Acid Oils; European Commission CosIng.
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
Alpha-Isomethyl Ionone
No known risks
A violet-like fragrance ingredient used in perfumes and fragranced cosmetics. Its principal consumer 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
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
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
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
Camellia Japonica Flower Extract
No known risks
A flower-derived cosmetic extract used for conditioning or antioxidant support. Available botanical and cosmetic-use information does not identify a pregnancy- or breastfeeding-specific hazard from normal topical exposure. Extract composition and concentration vary, so this conclusion does not extend to concentrated oral herbal preparations; local plant allergy remains possible.
Sources: European Commission CosIng ingredient inventory; CIR botanical safety framework and relevant Camellia-derived ingredient reviews; peer-reviewed cosmetic literature on Camellia japonica extracts.
Phyllanthus Emblica Fruit Extract
No known risks
A botanical extract, juice or water used primarily for skin conditioning, moisturising, soothing or antioxidant support. Direct pregnancy studies of the named cosmetic material were not identified. No reproductive or developmental hazard was identified for normal topical exposure to a compliant finished cosmetic; oral herbal or medicinal use is outside this classification.
Sources: European Commission CosIng ingredient inventory; Cosmetic Ingredient Review botanical safety-assessment framework and relevant plant-family assessments. No ingredient-specific human pregnancy study of normal topical cosmetic use was identified.
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)
Full recorded ingredient list
Isododecane, Dimethicone, Dimethiconol, Camellia Oleifera Seed Oil, Zea Mays Germ Oil, Argania Spinosa Kernel Oil, Sclerocarya Birrea Seed Oil, Pentaclethra Macroloba Seed Oil, Caprylic/Capric Triglyceride, Camelina Sativa Seed Oil, Linalool, Alpha-Isomethyl Ionone, Limonene, Coumarin, Benzyl Alcohol, Camellia Japonica Flower Extract, Phyllanthus Emblica Fruit Extract, Tocopherol, Parfum
Ingredient ratings refreshed 1 October 2026. Formulas vary by market and can change. Always compare with your packaging.
Questions about this assessment
Why does Kérastase Elixir Ultime L'Huile Original Hair Oil have a Low risk rating?
The recorded formula includes 2 ingredient entries with risk flags: Dimethicone (Low risk), Parfum (Low risk). 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.
Has every ingredient in Kérastase Elixir Ultime L'Huile Original Hair Oil been assessed?
19 of 19 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 Elixir Ultime L'Huile Original Hair Oil?
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.
