Kérastase Nutritive 8H Magic Night Hair Serum for Dry Hair

A high-molecular-weight polymer used as a film former, binder and texture ingredient. Cosmetic-grade polyacrylamide is considered safe when residual acrylamide monomer is tightly controlled. MamaSkin classifies it as low risk because safety depends on manufacturing controls for the hazardous residual monomer, rather than because the finished polymer is a known pregnancy-specific hazard.

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.

Glycerin is a widely used humectant that supports hydration and the skin barrier, with a long safety record and no known pregnancy or breastfeeding concerns in topical cosmetic use.

An ethoxylated fatty alcohol used mainly as an emulsifier, surfactant or solubiliser. Cosmetic safety reviewers concluded that alkyl PEG/PPG ethers are safe in current practices when formulated to be non-irritating. Manufacturing controls should limit residual ethylene oxide and 1,4-dioxane.

Panthenol (pro-vitamin B5) is used for soothing and barrier support and is generally well tolerated, with no known pregnancy or breastfeeding concerns in topical cosmetic use.

A stable vitamin C derivative used as an antioxidant and skin-conditioning ingredient. The Cosmetic Ingredient Review concluded that ascorbyl glucoside is safe in current cosmetic use; normal topical exposure does not identify a pregnancy- or breastfeeding-specific concern.

Solvent and humectant commonly used in leave-on products. Not associated with pregnancy-specific concerns at cosmetic exposure levels.

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.

A floral fragrance ingredient and recognised contact allergen. Current safety concerns focus on skin sensitisation and controlled cosmetic concentrations; no pregnancy-specific hazard is identified for normal topical cosmetic exposure.

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.

A synthetic floral fragrance ingredient. Its main consumer-relevant concern is skin sensitisation in susceptible users; no pregnancy-specific hazard is identified for normal topical cosmetic exposure.

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.

A mixture of smaller wheat-protein peptides used for hair and skin conditioning. Cosmetic safety reviewers concluded that hydrolyzed wheat protein is safe when the weight-average peptide molecular weight is 3,500 Da or less, a limit intended to reduce sensitisation risk. This does not imply that a person with a wheat-protein allergy cannot react.

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.

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.

A plant-derived protein or peptide mixture used mainly for hair and skin conditioning. Cosmetic safety reviewers concluded that the assessed plant-derived proteins and peptides are safe in current practices. Protein allergy remains possible in susceptible people.

A mixture of smaller soy-protein peptides used for hair and skin conditioning. Cosmetic safety reviewers concluded that hydrolyzed soy protein is safe in current cosmetic practices. A person with sensitivity to residual soy proteins may still react, but no pregnancy-specific concern was identified for normal topical exposure.

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.

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.

pH adjuster used in small amounts to maintain product stability. Not associated with pregnancy-specific concerns.