Kiehl's Better Screen UV Serum SPF 50+ Facial Sunscreen With Collagen Peptide

Ethylhexyl salicylate (octisalate) is an organic UV-B filter with measurable topical absorption. A CIR review records a rat oral reproductive/developmental study with dose-related post-implantation loss and smaller litters at 80 and 250 mg/kg/day (NOAEL 25 mg/kg/day); those repeated oral doses do not model intact-skin cosmetic exposure. The same review found relatively low human-skin permeability and concluded ethylhexyl salicylate safe in the assessed cosmetic uses. A ToxCast-to-human-exposure comparison found the most sensitive in-vitro endocrine response at about 16.5 micromolar versus about 0.023 micromolar maximal-use human plasma exposure, roughly 700-fold lower. FDA still requests additional sunscreen safety data, and pregnancy-outcome data are limited; MotherToBaby reports no proven increased pregnancy risk. MamaSkin therefore uses Low Risk to surface absorption and the evidence gap without treating remote high-dose animal findings as proof that typical topical use should be avoided.

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.

A purified hydrocarbon emollient or volatile carrier used for slip and light texture. Related cosmetic hydrocarbon and isoparaffin assessments support use in current practices. Normal dermal exposure is not associated with a pregnancy-specific signal; volatile products should be used with ordinary ventilation.

Solvent and humectant used to improve texture and ingredient solubility. Low systemic exposure expected from topical cosmetic use.

C12 22 Alkyl Acrylate/hydroxyethylacrylate Copolymer is a cosmetic polymer, film former or high-molecular-weight texture aid. Systemic dermal absorption is expected to be limited when manufactured with appropriate residual-monomer and impurity controls. No pregnancy-specific concern was identified for normal cosmetic use; avoid inhaling airborne powder or spray droplets.

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

Amino-acid-derived emulsifier and skin-conditioning support ingredient. Reviewed cosmetic ingredient references do not identify a pregnancy- or breastfeeding-specific concern for normal topical use.

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

Fatty alcohol used as an emollient and thickener. Not the same as drying alcohols and not associated with pregnancy-specific concerns.

Microbial polysaccharide thickener used to build viscosity and form a soft film on skin. Reviewed cosmetic safety sources support normal topical use, with no pregnancy- or breastfeeding-specific topical signal identified in the material reviewed.

Hydroxyacetophenone is used as an antioxidant and preservative-support ingredient; it is generally considered low concern in topical cosmetic use with no known pregnancy or breastfeeding risks at typical concentrations.

Humectant and preservative booster used to support product stability. Low systemic exposure expected from topical cosmetic use.

A sugar, starch, inulin or cellulose derivative used for emulsification, film formation, absorbency or formula texture. These carbohydrate-based materials are not expected to produce meaningful systemic exposure through intact skin, and related cosmetic safety assessments do not identify a reproductive or developmental hazard for normal use. Fine dry powder should not be deliberately inhaled.

Emulsifier and emollient used to stabilise creams and lotions. Not associated with pregnancy-specific concerns at cosmetic exposure.

Jojoba-derived wax esters used as emollients, texture agents and skin-conditioning ingredients. Reviewed cosmetic ingredient references do not identify a pregnancy- or breastfeeding-specific concern for normal topical use.

A sunflower-seed-derived wax used to structure and condition cosmetic formulas. Cosmetic safety reviewers concluded that sunflower seed- and flower-derived ingredients are safe as used; lipsticks containing this wax were not irritating or sensitising in reviewed tests. People with sunflower-seed allergy should still use caution.

A modified starch used mainly to thicken and stabilize cosmetic formulas. Cosmetic safety reviewers concluded that starch phosphates, including hydroxypropyl starch phosphate, are safe in current cosmetic use. No pregnancy- or breastfeeding-specific concern is identified for normal topical exposure.

Chelating ingredient used to improve formula stability by binding trace metals. Reviewed cosmetic ingredient references do not identify a pregnancy- or breastfeeding-specific concern for normal topical use.

Polymer thickener used to create gel textures. Large-molecule ingredient with negligible systemic absorption.

Humectant and buffer that also forms part of the skin's natural moisturising factor. Reviewed cosmetic safety sources support topical cosmetic use; irritation and sun-sensitivity considerations relate more to formula context than to pregnancy-specific risk.

pH adjuster used in very small quantities to balance formulations. Not associated with pregnancy-specific concerns.

Nonionic surfactant and solubiliser used to disperse oils and fragrance. Reviewed cosmetic safety sources support normal topical use, with no pregnancy- or breastfeeding-specific topical signal identified in the material reviewed.

A small glycerin polymer used as a humectant and conditioning ingredient. Cosmetic safety reviewers assessed polyglycerin-3 with diglycerin and related polyglycerins and concluded that they are safe in current practices of use and concentration. No pregnancy-specific concern was identified for normal topical use.

Synthetic peptide used as a skin-conditioning ingredient. Reviewed cosmetic safety sources indicate no known pregnancy- or breastfeeding-specific concern in normal topical cosmetic use. Available cosmetic safety assessments conclude this ingredient is safe in the present practices of use and concentration described for cosmetics.