Beauty of Joseon Daily Relief Sunscreen SPF 40

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.

Butyloctyl salicylate is a salicylate ester that the CIR panel considered safe as used in cosmetics when formulated to be non-irritating. Available safety data support low dermal toxicity, and at typical cosmetic use levels the expected systemic salicylate exposure from topical application is far below oral salicylate exposure, which fits a low-risk classification.

1,2-Hexanediol is commonly used as a solvent and preservative booster; topical exposure is low and it has no known pregnancy or breastfeeding concerns at cosmetic concentrations, though very sensitive skin may occasionally react.

Polymer thickener and stabiliser used in creams and sunscreens. Low systemic exposure expected.

Long-chain fatty alcohol used as an emollient and thickener. This is not the same concern profile as simple drying alcohols; reviewed cosmetic safety sources support normal topical use.

Volatile/low-residue silicone emollient used to improve spreadability and sensory feel. Reviewed cosmetic safety sources support normal topical use, with no pregnancy- or breastfeeding-specific topical signal identified in the material reviewed.

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

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

Diethylhexyl 2,6-naphthalate is an emollient, solvent and cosmetic photostabiliser. FDA formulation-review material cites a CIR safe-use conclusion, and Health Canada lists it for topical non-medicinal use. Photochemical activity in isolated solvent systems does not establish reproductive or developmental toxicity in a finished cosmetic. No pregnancy-specific concern was identified for normal topical use.

Dipropylene glycol is used as a solvent and carrier in cosmetics; topical exposure is low and it has no known pregnancy or breastfeeding concerns at cosmetic concentrations.

Preservative booster and skin-conditioning agent. Considered safe for cosmetic use with low systemic exposure when used as intended.

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.

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

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.

A rice-derived extract or wax used for skin conditioning, absorbency or texture. Cosmetic safety reviewers concluded that the assessed Oryza sativa-derived ingredients are safe in current cosmetic practices. Rice allergy remains possible in a susceptible person.

Humectant and preservative booster. Considered safe for cosmetic use with low systemic exposure.

A high-molecular-weight acrylate polymer used as a film former and texture modifier. Its high molecular weight limits meaningful skin penetration. No reproductive or developmental hazard was identified for normal topical cosmetic exposure.

Large polymer thickener and stabilizer used in gels, serums and creams. Systemic exposure from topical cosmetic use is expected to be low, with no pregnancy- or breastfeeding-specific concern identified in reviewed cosmetic references.

An emulsifier built from polyglycerin, methyl glucose and stearic-acid components, used to stabilise creams and improve texture. Exact pregnancy-specific data are limited. Cosmetic safety reviewers concluded that related methyl glucose esters and polyglyceryl fatty-acid esters are safe in current cosmetic use when formulated to be non-irritating. No pregnancy-specific topical concern was identified by applying those related-group assessments to ordinary cosmetic exposure.

A silicone resin used as a film former, texture enhancer and opacifying ingredient in makeup, sunscreen and skin care. The Cosmetic Ingredient Review concluded that polysilsesquioxanes including Polymethylsilsesquioxane are safe in current cosmetic use. Available evidence does not identify a pregnancy- or breastfeeding-specific concern for normal topical cosmetic exposure.

Mineral absorbent and texture aid used to mattify and improve slip. Reviewed cosmetic safety sources support normal topical cosmetic use; this assessment does not cover deliberate inhalation of loose powder.

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.

A volatile solvent and denaturant used in small amounts in cosmetics. Cosmetic safety reviewers concluded that t-butyl alcohol is safe in current practices of use and concentration; their assessment included reproductive and developmental data and found a large exposure margin at cosmetic use levels. It may irritate eyes or skin in concentrated form.

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

pH adjuster and buffer used to stabilise formulations. Reviewed cosmetic safety sources support normal topical use, with no pregnancy- or breastfeeding-specific topical signal identified in the material reviewed.

A film-forming vinyl polymer used for water resistance and product hold. Cosmetic safety reviewers concluded that vinylpyrrolidone polymers, including VP/eicosene copolymer, are safe in current practices when residual monomers are appropriately controlled. Rare contact allergy has been reported with this ingredient family.