
Beauty of Joseon

Some ingredients carry a low-risk flag. Read the formulation context before deciding.
42 of 42 ingredients rated
MamaSkin rates the recorded formula for Beauty of Joseon Light On Serum : Centella + Vita C as Low risk (79/100). Review the ingredient context and any manual-review explanation before deciding.
The recorded formula includes 2 ingredient entries with risk flags: Methyl Trimethicone (Low risk), Dimethicone/Vinyl Dimethicone Crosspolymer (Low risk). These are ingredient-level flags; they do not replace the stored product assessment or account for every formulation detail.
42 of 42 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 productsThe recorded formula, with evidence behind each rating. Unmatched ingredients are marked Not assessed in grey.
A lightweight volatile linear silicone used as a solvent and texture ingredient. Related linear methicone ingredients have reassuring cosmetic safety assessments, but an exact final Cosmetic Ingredient Review finding for Methyl Trimethicone was not located. MamaSkin classifies it as low risk because exact-ingredient pregnancy and inhalation data are limited, while no specific pregnancy contraindication has been identified for normal topical cosmetic use.
Sources: CIR: Safety Assessment of Dimethicone Methicone and Substituted-Methicone Polymers https://cir-safety.org/supplementaldoc/safety-assessment-dimethicone-methicone-and-substituted-methicone-polymers-used-cosm; CIR Quick Reference Table December 2025
A crosslinked silicone elastomer used for texture and oil absorption. Cosmetic safety reviewers concluded that dimethicone crosspolymers are safe in current cosmetic use. MamaSkin classifies the exact polymer as low risk for consistency with the existing dimethicone-family policy and because manufacturing controls are needed for residual monomers, rather than because of a known pregnancy-specific contraindication.
Sources: CIR: Safety Assessment of Dimethicone Crosspolymers as Used in Cosmetics https://www.cir-safety.org/sites/default/files/dimethcross_blue_092012.pdf
Botanical skin-conditioning ingredient used in soothing and barrier-support formulas. Reviewed cosmetic safety sources support current cosmetic use when formulated to be non-sensitising, with no pregnancy- or breastfeeding-specific topical concern identified in the material reviewed.
Sources: CIR: Safety Assessment of Centella asiatica-derived Ingredients as Used in Cosmetics; EU CosIng / cosmetics regulatory inventory
A stable ether derivative of vitamin C used as an antioxidant and brightening ingredient. Pregnancy-specific topical studies are limited, but no pregnancy-specific contraindication was identified in the reviewed literature. Published case reports describe allergic contact dermatitis, so local sensitivity remains possible and this classification should not be read as proof that irritation cannot occur.
Sources: CIR: Safety Assessment of Ethers of Ascorbic Acid https://www.cir-safety.org/sites/default/files/ethers_of_ascorbate.pdf; PubMed: 3-O-ethyl-L-ascorbic acid topical delivery https://pubmed.ncbi.nlm.nih.gov/31517290/; PubMed: allergic contact dermatitis case report https://pubmed.ncbi.nlm.nih.gov/24846587/
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
Solvent and humectant used to improve texture and ingredient solubility. Low systemic exposure expected from topical cosmetic use.
Sources: Cosmetic Ingredient Review (US); Scientific Committee on Consumer Safety (EU)
Betaine is a humectant/osmolyte used to support hydration and reduce irritation potential in formulas; it is considered low concern with no known pregnancy or breastfeeding risks in topical cosmetic use.
Sources: CIR; EU/UK Cosmetics Regulation
Light emollient carbonate ester used to improve spreadability and reduce greasiness. 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 Dialkyl Carbonates as Used in Cosmetics; EU CosIng / cosmetics regulatory inventory
Lightweight emollient ester used to improve slip and skin feel. Reviewed cosmetic ingredient references do not identify a pregnancy- or breastfeeding-specific concern for normal topical cosmetic use.
Sources: CIR cosmetic ingredient safety references for alkyl esters/emollient esters; EU CosIng / cosmetics regulatory inventory
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.
Sources: CIR; EU/UK Cosmetics Regulation
A red or brown algae-derived ingredient used for skin conditioning, hydration or texture. Cosmetic safety reviewers concluded that Laminaria japonica extract and the assessed Chondrus crispus ingredients are safe in current practices of use and concentration. Seaweed allergy remains possible in a susceptible person.
Sources: CIR: Laminaria Japonica Extract final report, September 2019; Chondrus Crispus ingredients final report, September 2021; December 2025 Quick Reference Table https://cir-safety.org/sites/default/files/QRT-Update-Dec2025.pdf
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.
Sources: European Commission CosIng ingredient inventory; Cosmetic Ingredient Review botanical safety-assessment framework and relevant plant-family assessments. No ingredient-specific human pregnancy study of normal topical cosmetic use was identified.
Phellodendron bark extract can contain biologically active alkaloids, with composition depending on extraction and source. Oral berberine cautions are not evidence of equivalent exposure from a topical cosmetic extract. No pregnancy-specific hazard was identified for normal topical cosmetic use.
Sources: PubMed: constituents and biological activity of Phellodendron amurense bark https://pubmed.ncbi.nlm.nih.gov/28425165/; European Commission CosIng ingredient inventory. No human pregnancy study of topical cosmetic use was identified.
A citrus fruit or peel extract used for skin conditioning and fragrance. Cosmetic safety reviewers concluded that these named citrus-derived ingredients are safe when formulated to be non-irritating and non-sensitising, and when leave-on products contain no more than 15 ppm 5-methoxypsoralen. Citrus sensitivity remains possible.
Sources: CIR: Citrus Junos Fruit Extract and Citrus Unshiu Peel Extract conclusions, IJT 40(Suppl. 3), 2021; December 2025 Quick Reference Table https://cir-safety.org/sites/default/files/QRT-Update-Dec2025.pdf
A botanical extract, plant water or plant juice used for conditioning, soothing or antioxidant support. Direct pregnancy studies of this exact cosmetic material were not identified, but no reproductive or developmental hazard was identified for normal topical exposure. Oral herbal or medicinal use is outside this classification.
Sources: European Commission CosIng ingredient inventory; CIR botanical safety framework and relevant plant-derived ingredient assessments; no ingredient-specific human pregnancy study of normal topical cosmetic use was identified.
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.
Sources: European Commission CosIng ingredient inventory; Cosmetic Ingredient Review botanical safety-assessment framework and relevant plant-family assessments. No ingredient-specific human pregnancy study of normal topical cosmetic use was identified.
Hydrogenated emulsifier used to support skin barrier feel. Not associated with pregnancy-specific concerns.
Sources: Cosmetic Ingredient Review (US)
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)
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
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
A terpene alcohol used for skin conditioning and soothing. Cosmetic safety reviewers reaffirmed bisabolol as safe at current cosmetic concentrations, and reproductive and developmental testing did not identify adverse effects. Bisabolol can increase skin penetration, so formulators should consider the safety of other ingredients in the same product.
Sources: CIR: Final Report on the Safety Assessment of Bisabolol https://cir-reports.cir-safety.org/view-attachment/?id=6fcf160b-8e74-ec11-8943-0022482f06a6; CIR re-review material https://www.cir-safety.org/sites/default/files/bisabolol.pdf
An alkyl phosphate surfactant and emulsifier used to stabilise creams, sunscreens and makeup. Cosmetic safety reviewers concluded that the assessed alkyl phosphates, including potassium cetyl phosphate, are safe in current practices of use and concentration when formulated to be non-irritating. Dermal penetration is expected to be limited, and no pregnancy-specific concern is identified for normal topical cosmetic exposure.
Sources: CIR: Safety Assessment of Alkyl Phosphates https://www.cir-safety.org/sites/default/files/alkyl%20phosphates_0.pdf
A hydrolysed jojoba wax ester used for conditioning and texture. Cosmetic safety reviewers concluded that hydrolyzed jojoba esters are safe in current practices of use and concentration.
Sources: CIR: Hydrolyzed Jojoba Esters final assessment, September 2008; December 2025 Quick Reference Table https://cir-safety.org/sites/default/files/QRT-Update-Dec2025.pdf
Emollient ester/emulsifier used to improve skin feel and stabilise emulsions. Reviewed cosmetic safety sources support topical cosmetic use; the relevant practical caveat is formulation irritation potential rather than a pregnancy-specific concern.
Sources: CIR: Amended Safety Assessment of Alkyl Esters as Used in Cosmetics; CIR Quick Reference Table (Cetearyl Olivate); EU CosIng / cosmetics regulatory inventory
Olive-derived sorbitan ester used as an emulsifier and skin-conditioning ingredient. Reviewed cosmetic safety references do not identify a pregnancy- or breastfeeding-specific concern for normal topical use.
Sources: CIR: Safety Assessment of Sorbitan Esters as Used in Cosmetics; EU CosIng / cosmetics regulatory inventory
Large polymer thickener, stabilizer and texture ingredient used in gels, creams and sunscreens. 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 copolymers; EU CosIng / cosmetics regulatory inventory
A high-molecular-weight polymer used for film formation, texture or stabilisation. Meaningful dermal absorption is expected to be limited and no reproductive or developmental concern was identified for normal topical use.
Sources: CIR safety framework for cosmetic polymers; European Commission CosIng.
Natural polysaccharide thickener used for stability and texture. Not associated with pregnancy-specific concerns.
Sources: European cosmetics regulatory framework
A polyglycerin fatty-acid ester used as an emulsifier, dispersant or emollient. Cosmetic safety reviewers concluded that the assessed family of 274 polyglyceryl fatty acid esters is safe in current practices when formulated to be non-irritating. No pregnancy-specific concern was identified for normal topical cosmetic exposure.
Sources: CIR: Safety Assessment of Polyglyceryl Fatty Acid Esters as Used in Cosmetics https://www.cir-safety.org/supplementaldoc/safety-assessment-polyglyceryl-fatty-acid-esters-used-cosmetics-1
Skin-conditioning ingredient commonly used in leave-on skincare. 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 Adenosine Ingredients as Used in Cosmetics; EU CosIng / cosmetics regulatory inventory
Short plant-derived carbohydrate chains used for skin conditioning and formula support. Cosmetic safety reviewers assessed fructooligosaccharides with plant polysaccharide gums and concluded that the group is safe in current practices. No pregnancy-specific concern was identified for normal topical cosmetic exposure.
Sources: CIR: Safety Assessment of Plant Polysaccharide Gums as Used in Cosmetics https://www.cir-safety.org/sites/default/files/plpogu092014slr.pdf
Film-forming polysaccharide used for soothing and hydration support. 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 Microbial Polysaccharide Gums as Used in Cosmetics; EU CosIng / cosmetics regulatory inventory
Solvent and humectant commonly used in leave-on products. Not associated with pregnancy-specific concerns at cosmetic exposure levels.
Sources: Cosmetic Ingredient Review (US); Scientific Committee on Consumer Safety (EU)
Emulsifier used to help oil and water phases remain mixed. Reviewed cosmetic safety sources support topical use in cosmetics; the main practical issue is irritation potential in some formulas rather than a pregnancy-specific concern.
Sources: CIR: Safety Assessment of Sorbitan Esters as Used in Cosmetics; EU CosIng / cosmetics regulatory inventory
Humectant and skin-conditioning ingredient in the hyaluronate family. Reviewed cosmetic safety sources support current cosmetic use, with no pregnancy- or breastfeeding-specific topical concern identified in the material reviewed.
Sources: CIR: Safety Assessment of Hyaluronates as Used in Cosmetics; EU CosIng / cosmetics regulatory inventory
Polysaccharide carrier and bulking agent used for texture and delivery support. 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 Polysaccharide Gums as Used in Cosmetics; EU CosIng / cosmetics regulatory inventory
Amino acid used as a humectant, skin-conditioning agent, and pH-adjusting support ingredient. 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 α-Amino Acids as Used in Cosmetics; EU CosIng / cosmetics regulatory inventory
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)
ascorbic acid polypeptide is an amino acid, peptide, protein-related or glycosaminoglycan cosmetic conditioning ingredient. Expected systemic exposure from normal topical use is low, and relevant cosmetic-family assessments did not identify a pregnancy-specific concern. Manufacturing quality and residual allergenic proteins remain relevant where applicable.
Sources: CIR assessments of alpha-amino acids, plant-derived amino acids, proteins and peptides https://www.cir-safety.org/supplementaldoc/safety-assessment-%CE%B1-amino-acids-used-cosmetics; European Commission CosIng
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
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.
Sources: CIR; EU/UK Cosmetics Regulation
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)
Centella Asiatica Extract, 3-O-Ethyl Ascorbic Acid, Glycerin, Propanediol, Betaine, Dicaprylyl Carbonate, Methyl Trimethicone, Cetyl Ethylhexanoate, Panthenol, Laminaria Japonica Extract, Eclipta Prostrata Leaf Extract, Phellodendron Amurense Bark Extract, Citrus Unshiu Peel Extract, Brassica Oleracea Acephala Leaf Extract, Hydrolyzed Gardenia Florida Extract, Hydrogenated Lecithin, Cetearyl Alcohol, Water, Dimethicone/Vinyl Dimethicone Crosspolymer, Silica, Bisabolol, Potassium Cetyl Phosphate, Hydrolyzed Jojoba Esters, Cetearyl Olivate, Sorbitan Olivate, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Ammonium Acryloyldimethyltaurate/Beheneth-25 Methacrylate Crosspolymer, Xanthan Gum, Polyglyceryl-10 Myristate, Adenosine, Fructooligosaccharides, Beta-Glucan, Butylene Glycol, Sorbitan Isostearate, Hydrolyzed Hyaluronic Acid, Maltodextrin, Arginine, Carbomer, Ascorbic Acid Polypeptide, 1,2-Hexanediol, Hydroxyacetophenone, Ethylhexylglycerin
Ingredient ratings refreshed 1 October 2026. Formulas vary by market and can change. Always compare with your packaging.
The recorded formula includes 2 ingredient entries with risk flags: Methyl Trimethicone (Low risk), Dimethicone/Vinyl Dimethicone Crosspolymer (Low risk). 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.
No. This recorded formula contains Panthenol or Madecassoside, but a barrier-care claim does not establish the assessment of all its other ingredients. Read the individual ingredient evidence and any manual-review explanation, and compare the recorded list with your packaging.
42 of 42 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.
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.
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.