VeriMomIs cysteine safe during pregnancy?
Reviewed by VeriMom Editorial Team · Last reviewed
Pregnancy-Safe Ingredients Database — 28,000+ Ingredients Rated
cysteine
NO KNOWN RISKS93
/100
0
Pregnancy-safe products containing cysteine
Abib
Abib Deep Clean Foam Cleanser Sedum Hyaluron Foam - 150ml
99/100
Abib
Abib Double Cleansing Set
99/100
Abib
Abib Dark Spot Collagen Wrapping Mask Glutathione Film - 100ml
99/100
TFIT
TFIT Translucent Set Finishing Powder - 7g
99/100
Isntree
Isntree Hyaluronic Acid Low-Ph Cleansing Foam
99/100
Isntree Hyaluronic Acid Low-pH Cleansing Foam - 150ml
99/100
crumb.
crumb. Hair Mask Conditioner For Porous And Fluffy Hair
98/100
BLIV:U Collagen Bouncing Cleanser - 200ml
98/100
Benton Honest Eyelash Serum - 10ml
98/100
Beauty of Joseon
Beauty of Joseon Red Bean Water Gel
98/100
Related ingredients
See also
Sources & references
Authoritative references used to score this ingredient.
Frequently asked questions
- Is cysteine safe during pregnancy?
- No harmonised reproductive classification on ECHA Annex VI and no CIR or SCCS concern for cysteine (CAS 52-90-4). Cysteine is a naturally occurring amino acid with no credible evidence of developmental or teratogenic effects at consumer-relevant exposures (see PubChem/ECHA registration data and PubMed literature). Dermal absorption is possible but expected to be low for this small, hydrophilic molecule, so exposure from topical cosmetic use is low but measurable.
- Is cysteine safe while breastfeeding?
- No evidence of reproductive or lactation-specific toxicity in regulatory sources or peer-reviewed literature. Systemic exposure from normal topical cosmetic use is expected to be low but measurable; no data indicate transfer to breastmilk at cosmetic exposures.
- Is cysteine safe for baby skin?
- Hazard and mechanism: no infant-specific reproductive or developmental concerns identified. Exposure: infant skin has higher absorption potential; given measurable dermal absorption in adults, increase exposure score by +1 for 0–3 year skin, yielding moderate exposure potential relative to adults.
- How does VeriMom score cysteine?
- VeriMom scores cysteine at 93/100 (no known risks) based on EU CosIng status, ECHA hazard classifications, and peer-reviewed PubMed studies. Our scoring pipeline is fully transparent.
- What are pregnancy-safe alternatives to cysteine?
- See our curated list of pregnancy-safe alternatives to cysteine based on similar function and a no-known-risks safety band.
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Medical Disclaimer
This information is for educational purposes only and does not constitute medical advice. Safety scores are based on publicly available data and may not reflect all risks. Always consult your healthcare provider before using any product during pregnancy or breastfeeding.