VeriMomБезопасен ли cystine при беременности?
Cystine (the oxidized dimer of cysteine, CAS 56-89-3) is a naturally occurring amino acid derivative with no harmonised reproductive classification at ECHA Annex VI, no CIR or SCCS safety flags for reproductive toxicity, and no credible peer‑reviewed evidence of teratogenicity or reproductive toxicity in the cosmetic/toxicology literature. Physiologically it is a normal dietary/biological component, not a known reproductive toxicant (sources: ECHA Annex VI — no harmonised CLP; PubChem summaries; PubMed literature searches showing no reproductive hazard).
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Frequently asked questions
- Безопасен ли cystine при беременности?
- Cystine (the oxidized dimer of cysteine, CAS 56-89-3) is a naturally occurring amino acid derivative with no harmonised reproductive classification at ECHA Annex VI, no CIR or SCCS safety flags for reproductive toxicity, and no credible peer‑reviewed evidence of teratogenicity or reproductive toxicity in the cosmetic/toxicology literature. Physiologically it is a normal dietary/biological component, not a known reproductive toxicant (sources: ECHA Annex VI — no harmonised CLP; PubChem summaries; PubMed literature searches showing no reproductive hazard).
- Безопасен ли cystine при грудном вскармливании?
- No evidence that cystine poses reproductive or lactation-associated hazards; as an endogenous amino acid dimer it is not known to interfere with lactation or to concentrate in breast milk as a toxicant. No harmonised CLP or regulatory safety assessment (CIR/SCCS) indicates risk during breastfeeding (sources: PubChem, PubMed, CIR/SCCS absence).
- Безопасен ли cystine для кожи малыша?
- No evidence of intrinsic reproductive or developmental toxicity for topical cystine. Absorption from skin for small, water‑soluble amino acids/dipeptides is generally low but measurable; because infant skin has higher surface‑area-to‑weight and a less mature barrier, exposure score is increased by +1. No infant‑specific hazards or studies indicating developmental effects were found (sources: CosIng listing; PubChem; general dermal absorption principles from peer‑reviewed literature).
- Как VeriMom оценивает cystine?
- VeriMom оценивает cystine в 100/100 (без известных рисков) на основе EU CosIng, классификаций ECHA и исследований PubMed.
- Какие безопасные альтернативы cystine при беременности?
- См. наш список безопасных альтернатив cystine с аналогичной функцией и классификацией без известных рисков.
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Медицинская оговорка
Данная информация предоставлена исключительно в образовательных целях и не является медицинской рекомендацией. Оценки безопасности основаны на общедоступных данных и могут не отражать все риски. Всегда консультируйтесь с вашим врачом перед использованием любых средств во время беременности или грудного вскармливания.