Beauty of Joseon
Beauty of Joseon Relief Sun : Rice + Probiotics SPF 50+ PA++++
No known risks99/100
Beauty of Joseon
Daily Relief Sunscreen SPF 40
Sunscreens
This formula needs extra consideration during pregnancy. Review the flagged ingredients with your healthcare professional.
30 of 30 ingredients rated
Is it suitable during pregnancy?
MamaSkin rates the recorded formula for Beauty of Joseon Daily Relief Sunscreen SPF 40 as Medium risk (51/100). Discuss the flagged ingredients with a qualified healthcare professional before using this formula during pregnancy.
Why this rating?
The recorded formula includes 5 ingredient entries with risk flags: butyl methoxydibenzoylmethane (Medium risk), homosalate (Medium risk), octocrylene (Medium risk), plus others listed in the breakdown. These are ingredient-level flags; they do not replace the stored product assessment or account for every formulation detail.
30 of 30 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.
butyl methoxydibenzoylmethane
Medium risk
Butyl methoxydibenzoylmethane (avobenzone) is a UVA filter used in sunscreens. Reviews note potential endocrine-related signals for several organic UV filters, but data are often not sufficient to establish endocrine disruption, and systemic exposure depends on formulation and use pattern. Pregnancy-specific human outcome data for topical exposure are limited; the key signal is uncertainty around systemic/endocrine effects rather than a well-defined pregnancy outcome dataset.
Sources: TGA: Safety review of seven active sunscreen ingredients https://www.tga.gov.au/resources/publication/corporate-reports/safety-review-seven-active-sunscreen-ingredients
homosalate
Medium risk
Homosalate is a UV-B filter. SCCS re-evaluations focused on potential endocrine activity and systemic exposure; while endocrine evidence has been described as inconclusive/equivocal, the ingredient remains under endocrine-disruptor scrutiny and exposure modelling depends on product type and use patterns. Pregnancy-specific human outcome data for topical exposure are limited, so the key signal is endocrine uncertainty plus systemic exposure considerations with frequent, large-area use.
Sources: SCCS: Homosalate safety assessment https://health.ec.europa.eu/publications/scientific-advice-safety-homosalate-cas-no-118-56-9-ec-no-204-260-8-uv-filter-cosmetic-products_en
octocrylene
Medium risk
Octocrylene is a UV filter and photostabiliser used in sunscreens and some daily SPF products. SCCS reviewed endocrine-related evidence and noted some indications of endocrine effects in vivo, but with limitations; systemic exposure is plausible with frequent, large-area use. An additional practical signal is that benzophenone can occur as an impurity/degradation product in some octocrylene-containing products. Pregnancy-specific human outcome data for topical exposure are limited.
Sources: SCCS/1627/21: Octocrylene https://health.ec.europa.eu/publications/octocrylene_en
ethylhexyl salicylate
Low risk
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.
Sources: CIR 2019 Final Report: Amended Safety Assessment of Salicylic Acid and Salicylates https://www.cir-safety.org/sites/default/files/salicy042019FAR.pdf, Toxicological Sciences 2023: ToxCast/Tox21 endocrine activity compared with human plasma exposure https://academic.oup.com/toxsci/article/196/1/25/7240499, FDA: OTC sunscreen proposed-order Q&A https://www.fda.gov/drugs/understanding-over-counter-medicines/questions-and-answers-fda-posts-deemed-final-order-and-proposed-order-over-counter-sunscreen, Matta et al. JAMA 2020 maximal-use sunscreen absorption trial https://jamanetwork.com/journals/jama/fullarticle/2759002, MotherToBaby: Screening Your Sunscreen During Pregnancy https://mothertobaby.org/baby-blog/screening-your-sunscreen-during-pregnancy/
butyloctyl salicylate
Low risk
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.
Sources: MotherToBaby: Topical acne treatments including salicylic acid https://www.ncbi.nlm.nih.gov/books/NBK582985/
Show all 30 ingredients
1,2-hexanediol
No known risks
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.
Sources: CIR; EU/UK Cosmetics Regulation
acrylates/c10-30 alkyl acrylate crosspolymer
No known risks
Polymer thickener and stabiliser used in creams and sunscreens. Low systemic exposure expected.
Sources: Cosmetic Ingredient Review (US); Scientific Committee on Consumer Safety (EU)
behenyl alcohol
No known risks
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.
Sources: CIR: Final Report on the Safety Assessment of Cetearyl Alcohol, Cetyl Alcohol, Isostearyl Alcohol, Myristyl Alcohol, and Behenyl Alcohol; EU CosIng / cosmetics regulatory inventory
caprylyl methicone
No known risks
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.
Sources: CIR: Amended Safety Assessment of Dimethicone, Methicone, and Substituted-Methicone Polymers as Used in Cosmetics; EU CosIng / cosmetics regulatory inventory
carbomer
No known risks
Polymer thickener used to create gel textures. Large-molecule ingredient with negligible systemic absorption.
Sources: Cosmetic Ingredient Review (US); Scientific Committee on Consumer Safety (EU)
cetearyl alcohol
No known risks
Fatty alcohol used as an emollient and thickener. Not the same as drying alcohols and not associated with pregnancy-specific concerns.
Sources: Cosmetic Ingredient Review (US); Scientific Committee on Consumer Safety (EU)
diethylhexyl 2,6-naphthalate
No known risks
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.
Sources: US FDA MUsT formulation safety review citing CIR safe-use conclusions https://downloads.regulations.gov/FDA-1978-N-0018-15871/attachment_1.pdf; Health Canada NHPID topical non-medicinal identity https://webprod.hc-sc.gc.ca/nhpid-bdipsn/ingredReq?id=14889.
dipropylene glycol
No known risks
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.
Sources: CIR; EU/UK Cosmetics Regulation
ethylhexylglycerin
No known risks
Preservative booster and skin-conditioning agent. Considered safe for cosmetic use with low systemic exposure when used as intended.
Sources: Scientific Committee on Consumer Safety (EU); Cosmetic Ingredient Review (US)
glycerin
No known risks
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.
Sources: CIR; EU/UK Cosmetics Regulation
glyceryl stearate
No known risks
Emulsifier and emollient used to stabilise creams and lotions. Not associated with pregnancy-specific concerns at cosmetic exposure.
Sources: Cosmetic Ingredient Review (US); Scientific Committee on Consumer Safety (EU)
inulin lauryl carbamate
No known risks
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.
Sources: CIR safety assessments of Starches and Modified Starches, Cellulose and Cellulose Derivatives, Saccharide Esters and Plant Polysaccharide Gums; CIR December 2025 Quick Reference Table https://cir-safety.org/sites/default/files/QRT-Update-Dec2025.pdf; European Commission CosIng ingredient inventory.
oryza sativa extract
No known risks
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.
Sources: CIR: Rice-derived ingredients conclusions, IJT 25(Suppl. 2), 2006; December 2025 Quick Reference Table https://cir-safety.org/sites/default/files/QRT-Update-Dec2025.pdf
pentylene glycol
No known risks
Humectant and preservative booster. Considered safe for cosmetic use with low systemic exposure.
Sources: Cosmetic Ingredient Review (US); Scientific Committee on Consumer Safety (EU)
poly c10-30 alkyl acrylate
No known risks
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.
Sources: European Commission CosIng ingredient inventory; Cosmetic Ingredient Review botanical safety-assessment framework and relevant ingredient-family assessments. No ingredient-specific human pregnancy study of normal topical cosmetic use was identified.
polyacrylate crosspolymer-6
No known risks
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.
Sources: CIR cosmetic ingredient safety references for acrylates/polyacrylate crosspolymers; EU CosIng / cosmetics regulatory inventory
polyglyceryl-3 methylglucose distearate
No known risks
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.
Sources: CIR: Safety Assessment of Methyl Glucose Polyethers and Esters https://www.cir-safety.org/supplementaldoc/safety-assessment-methyl-glucose-polyethers-and-esters-used-cosmetics; CIR: Safety Assessment of Polyglyceryl Fatty Acid Esters https://cir-safety.org/sites/default/files/PGlyFE092016FR.pdf
polymethylsilsesquioxane
No known risks
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.
Sources: CIR: Safety Assessment of Polysilsesquioxanes as Used in Cosmetics (Final Report) https://cir-safety.org/sites/default/files/PLYSIL122017FR.pdf
silica
No known risks
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.
Sources: CIR: Safety Assessment of Silica and Silicates as Used in Cosmetics; EU CosIng / cosmetics regulatory inventory
sodium stearoyl glutamate
No known risks
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.
Sources: CIR cosmetic ingredient safety references for amino acid alkyl amides/salts; EU CosIng / cosmetics regulatory inventory
t-butyl alcohol
No known risks
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.
Sources: CIR: Amended Safety Assessment of t-Butyl Alcohol as Used in Cosmetics https://cir-safety.org/sites/default/files/FAR_t-ButylAlcohol_092024.pdf
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)
tromethamine
No known risks
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.
Sources: CIR: Safety Assessment of Tromethamine as Used in Cosmetics; EU CosIng / cosmetics regulatory inventory
vp/eicosene copolymer
No known risks
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.
Sources: CIR: Safety Assessment of Vinylpyrrolidone Polymers as Used in Cosmetics https://www.cir-safety.org/sites/default/files/vinylp122018final.pdf
water
No known risks
Water (Aqua) is the standard purified water used as a cosmetic solvent. It has no pregnancy-specific risk in normal topical use.
Sources: https://pubchem.ncbi.nlm.nih.gov/compound/Water, https://single-market-economy.ec.europa.eu/sectors/cosmetics/cosmetic-ingredient-database/cosing-glossary-ingredients_en
Full recorded ingredient list
1,2-hexanediol, acrylates/c10-30 alkyl acrylate crosspolymer, behenyl alcohol, butyl methoxydibenzoylmethane, butyloctyl salicylate, caprylyl methicone, carbomer, cetearyl alcohol, diethylhexyl 2,6-naphthalate, dipropylene glycol, ethylhexyl salicylate, ethylhexylglycerin, glycerin, glyceryl stearate, homosalate, inulin lauryl carbamate, octocrylene, oryza sativa extract, pentylene glycol, poly c10-30 alkyl acrylate, polyacrylate crosspolymer-6, polyglyceryl-3 methylglucose distearate, polymethylsilsesquioxane, silica, sodium stearoyl glutamate, t-butyl alcohol, tocopherol, tromethamine, vp/eicosene copolymer, water
Ingredient ratings refreshed 1 October 2026. Formulas vary by market and can change. Always compare with your packaging.
Questions about this assessment
Why does Beauty of Joseon Daily Relief Sunscreen SPF 40 have a Medium risk rating?
The recorded formula includes 5 ingredient entries with risk flags: butyl methoxydibenzoylmethane (Medium risk), homosalate (Medium risk), octocrylene (Medium risk), plus others listed in the breakdown. 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.
Is the MamaSkin score a measure of SPF or sun protection?
No. The score and risk band describe MamaSkin's pregnancy-focused ingredient screening of this recorded formula. They do not measure SPF, UVA protection, water resistance or whether you have applied enough sunscreen. Use the protection and application instructions on your exact packaging, and review the ingredient flags separately.
Has every ingredient in Beauty of Joseon Daily Relief Sunscreen SPF 40 been assessed?
30 of 30 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 Beauty of Joseon Daily Relief Sunscreen SPF 40?
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.
