La Roche-Posay 10% Pure Niacinamide Serum

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.

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.

HEPES is a zwitterionic pH buffer. Its function and expected topical exposure do not indicate a reproductive or developmental concern in normal cosmetic use.

A cosmetic functional ingredient used for conditioning, texture or formula support. Available cosmetic-use information did not identify a reproductive or developmental hazard from normal topical exposure.

Fatty alcohol emollient used to improve spreadability and reduce drag. Reviewed cosmetic safety sources support normal topical use, with no pregnancy- or breastfeeding-specific topical signal identified in the material reviewed.

peg-20 methyl glucose sesquistearate is used as a cosmetic surfactant, emulsifier or conditioning agent. Relevant cosmetic-safety assessments support use when formulated to be non-irritating and with appropriate impurity controls. Local skin or eye irritation is possible at higher concentrations, but no pregnancy-specific concern was identified for normal topical or rinse-off use.

Mineral ingredient used in some cosmetics to enhance shimmer/opacity. For typical topical use, dermal absorption is very low and it is generally considered acceptable in pregnancy and breastfeeding. If you prefer a cautious approach, avoid inhaling loose powders or sprays.

This sorbitan fatty-acid ester is an emulsifier that helps oil and water phases remain mixed. The Cosmetic Ingredient Review concluded that sorbitan esters are safe in current cosmetic use; occasional contact reactions remain possible in sensitive users.

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.

A branched fatty-acid ester used as a lightweight emollient and texture agent. Cosmetic safety reviewers concluded that alkyl ethylhexanoates, including cetearyl ethylhexanoate, are safe in current practices when formulated to be non-irritating. No pregnancy-specific concern was identified for normal topical use.

Low-viscosity isoparaffin emollient used for slip and lightweight texture. Reviewed cosmetic safety sources support normal topical use, with no pregnancy- or breastfeeding-specific topical signal identified in the material reviewed.

Sodium hyaluronate (hyaluronic acid salt) is used for hydration and cushioning, with very low systemic absorption from topical use and no known pregnancy or breastfeeding concerns at cosmetic concentrations.

Phenylethyl resorcinol is a synthetic antioxidant and skin-brightening ingredient. Direct pregnancy studies of normal topical cosmetic use were not identified, but the reviewed cosmetic and toxicological literature did not establish a reproductive or developmental hazard at normal topical exposure. Irritation or sensitisation remains a general individual possibility.

poloxamer 338 is a cosmetic polymer or polymeric formulation aid. The reviewed material is distinct from any free reactive monomers; systemic dermal absorption is expected to be limited by molecular size when manufactured with appropriate impurity controls. No pregnancy-specific concern was identified for normal cosmetic use, although products should be formulated to avoid irritation.

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.

Disodium EDTA is a chelating agent used to improve formula stability and performance; it is considered low concern in topical cosmetic use, with no known pregnancy or breastfeeding risks at typical concentrations.

This emollient ester improves slip and skin feel. Cosmetic Ingredient Review assessments support use in current cosmetic concentrations when formulated to be non-irritating; topical use is not identified as a pregnancy- or breastfeeding-specific concern. Some alkyl esters can increase penetration of other formula ingredients.

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

Natural polysaccharide thickener used for stability and texture. Not associated with pregnancy-specific concerns.

Nonionic emulsifier and solubilizer used to disperse oils in cosmetic formulas. Reviewed cosmetic safety sources support normal topical use, with no pregnancy- or breastfeeding-specific topical signal identified.

A high-molecular-weight polymer used to thicken and stabilise formulas. Cosmetic safety reviewers concluded that acryloyldimethyltaurate polymers are safe in current practices. Residual monomers should be controlled during manufacture.

Vitamin E antioxidant used to protect oils and support the skin barrier. Not associated with pregnancy-specific concerns at cosmetic exposure.

Mineral platelet used to add shimmer and improve texture in makeup and skincare. Very low dermal absorption in typical topical use and generally considered acceptable in pregnancy and breastfeeding. If you prefer a cautious approach, avoid inhaling loose powders or sprays.