BYOMA Brightening Serum by BYOMA
BYOMA

BYOMA Brightening Serum

Serums

Safety score

Pregnancy-focused assessment

Low Risk79/100
Higher concernLower concern

One or more ingredients have a low-risk flag in MamaSkin's current assessment. Review the notes and your own circumstances.

Formula and assessment check

Ingredient safety review updated 9 December 2025. Product formulas can change, so compare the ingredients shown here with the packaging you have.

Report a formula mismatch

Ingredient breakdown

See how the listed formula falls across MamaSkin's pregnancy-focused risk bands.

24

No known risks

1

Low risk

0

Medium risk

0

High risk

Ingredients

Ingredients with a higher risk flag appear first, followed by the rest of the formula.

Lactic Acid

Low Risk

Endogenous alpha-hydroxy acid and humectant; at modest cosmetic concentrations (≈5% and below, and generally <10%) topical lactic acid is considered compatible with pregnancy. Main risks are local irritation and increased photosensitivity rather than systemic toxicity or fetal effects.

Sources: PubMed, U.S. National Library of Medicine (NLM); dermatology pregnancy skincare reviews

Water

No Known Risks

Methylpropanediol

No Known Risks

Solvent and humectant used to improve texture and ingredient delivery in topical cosmetic formulas. Reviewed cosmetic ingredient references do not identify a pregnancy- or breastfeeding-specific concern for normal topical use.

Sources: CIR cosmetic ingredient safety references for alkane diols; EU CosIng / cosmetics regulatory inventory

Show all (25)

Niacinamide

No Known Risks

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.

Sources: CIR; EU/UK Cosmetics Regulation

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

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

Polyglyceryl-10 Laurate

No Known Risks

Polyglycerin fatty-acid ester used as an emulsifier and solubilizer. Reviewed cosmetic safety references do not identify a pregnancy- or breastfeeding-specific concern for normal topical cosmetic use.

Sources: CIR cosmetic ingredient safety references for polyglyceryl fatty acid esters; EU CosIng / cosmetics regulatory inventory

Sodium Hyaluronate

No Known Risks

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.

Sources: CIR; EU/UK Cosmetics Regulation

Ceramide NP

No Known Risks

Skin-identical barrier lipid used to support the stratum corneum and reduce dryness. 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 Ceramides as Used in Cosmetics; EU CosIng / cosmetics regulatory inventory

Cholesterol

No Known Risks

Skin-conditioning lipid used in barrier-support formulas, often alongside ceramides and fatty acids. Normal topical cosmetic use has no known pregnancy- or breastfeeding-specific concern identified in reviewed cosmetic references.

Sources: CIR cosmetic ingredient safety references for cholesterol and related sterols; EU CosIng / cosmetics regulatory inventory

Caprylic/Capric Triglyceride

No Known Risks

Common emollient derived from fatty acids and glycerin. Used to soften skin and improve texture without pregnancy-specific concerns.

Sources: Cosmetic Ingredient Review (US); Scientific Committee on Consumer Safety (EU)

Phytosphingosine

No Known Risks

Skin-conditioning lipid used in barrier-support formulas, commonly alongside ceramides and cholesterol. Reviewed cosmetic ingredient references do not identify a pregnancy- or breastfeeding-specific concern for normal topical use.

Sources: CIR cosmetic ingredient safety references for sphingolipids/skin-conditioning lipids; EU CosIng / cosmetics regulatory inventory

Sodium Phytate

No Known Risks

Chelating agent used to improve formula stability. Used at low levels and not associated with pregnancy-specific concerns.

Sources: European cosmetics regulatory framework

Ascorbic Acid

No Known Risks

Vitamin C antioxidant used to support brightness and photoprotection; functions as an antioxidant/pH adjuster in cosmetic formulas. No pregnancy-specific contraindications are identified for topical cosmetic use.

Sources: CIR (Ascorbic Acid); PubMed (NLM)

Stearic Acid

No Known Risks

Stearic acid is a fatty acid used to stabilise emulsions and improve texture; it is considered low concern in topical cosmetics with no known pregnancy or breastfeeding risks at typical concentrations.

Sources: CIR; EU/UK Cosmetics Regulation

Oleic Acid

No Known Risks

This naturally occurring fatty acid is used for emolliency, cleansing support or texture. The Cosmetic Ingredient Review concluded that assessed fatty acids are safe in current cosmetic use when formulated to be non-irritating and non-sensitizing; some can increase penetration of other formula ingredients.

Sources: CIR: Safety Assessment of Fatty Acids and Fatty Acid Salts as Used in Cosmetics https://cir-safety.org/supplementaldoc/safety-assessment-fatty-acids-fatty-acid-salts-used-cosmetic

Hydrogenated Lecithin

No Known Risks

Hydrogenated emulsifier used to support skin barrier feel. Not associated with pregnancy-specific concerns.

Sources: Cosmetic Ingredient Review (US)

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)

Xanthan Gum

No Known Risks

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

Sources: European cosmetics regulatory framework

Squalane

No Known Risks

Lightweight emollient used to support the skin barrier. Not associated with pregnancy-specific concerns at cosmetic exposure levels.

Sources: Cosmetic Ingredient Review (US); Scientific Committee on Consumer Safety (EU)

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)

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)

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

Caprylyl Glycol

No Known Risks

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

Sources: Scientific Committee on Consumer Safety (EU); Cosmetic Ingredient Review (US)

Caprylhydroxamic Acid

No Known Risks

A chelating ingredient commonly used to support cosmetic preservation. Cosmetic safety reviewers concluded that caprylhydroxamic acid is safe in current cosmetic use; sensitisation and enhanced penetration are formulation considerations, especially on damaged skin, but no pregnancy-specific contraindication is identified for normal topical use.

Sources: CIR: Safety Assessment of Caprylhydroxamic Acid https://www.cir-safety.org/supplementaldoc/safety-assessment-caprylhydroxamic-acid-used-cosmetics

Formulations can change without notice. For the most accurate result, compare this list with your packaging and scan the exact ingredient label in MamaSkin when you repurchase.

How to use this assessment

The risk band is the primary conclusion. The score adds detail within that band and should not be used to compare products as if a one-point difference were clinically meaningful.

MamaSkin provides pregnancy-focused information, not medical advice. Your midwife, GP, pharmacist or dermatologist should take priority when your circumstances differ from typical cosmetic use.

Read the full methodology