Is hydrogenated styrene/isoprene copolymer safe during pregnancy?
Reviewed by VeriMom Editorial Team · Last reviewed
Pregnancy-Safe Ingredients Database — 28,000+ Ingredients Rated
hydrogenated styrene/isoprene copolymer
NO KNOWN RISKS100
/100
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Pregnancy-safe products containing hydrogenated styrene/isoprene copolymer

glossier
Glossier Lidstar
100/100

Derma Angel
Derma Angel Acne Patch
100/100

LH Cosmetics
LH Cosmetics Infinity Glass
100/100

Martine Cosmetics
Martine Cosmetics Liquid Matte Lipstick Mona
100/100

Mad.
Mad. Star Shaped Hydrocolloid Pimple Patch
100/100

milani
Milani Supercharged Cheek And Lip Multistick
99/100

Gen See
Gen See Clean Sheen Cheek + Lip Color
99/100

Gen See
Gen See Clean Sheen Cheek + Lip Color (lychee)
99/100

Kaleidos
Kaleidos Untamed Glow Glossy Lip Glaze Elixir
99/100

Kiko Milano
KIKO Milano Days In Bloom 3-in-1 Silky All-over - 02. Rose Dreams
99/100
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Authoritative references used to score this ingredient.
Frequently asked questions
- Is hydrogenated styrene/isoprene copolymer safe during pregnancy?
- No harmonised CLP reproductive classification or SCCS/CIR reproductive safety concerns found for hydrogenated styrene/isoprene copolymer; available databases (PubChem, CosIng, ECHA C&L) list it as a high‑molecular‑weight inert polymer/film former with no reproductive data indicating hazard, so default no evidence of reproductive hazard. (Sources: ECHA Annex VI/C&L records show no harmonised classification; PubChem/CosIng list substance as polymeric/film former.)
- Is hydrogenated styrene/isoprene copolymer safe while breastfeeding?
- No data indicating transfer into breastmilk or lactation toxicity; as a hydrogenated styrene/isoprene high‑MW polymer it is expected to be non‑systemically available after topical use and no regulatory flags (harmonised CLP, SCCS, CIR) were identified. (Sources: ECHA C&L, PubChem, CosIng.)
- Is hydrogenated styrene/isoprene copolymer safe for baby skin?
- Polymers of this type are high molecular weight, lipophilic film formers with negligible dermal penetration; therefore exposure from topical use is considered negligible even for infant skin and there are no infant‑specific toxicity reports or regulatory warnings. No increase in hazard or mechanism scores is warranted. (Sources: CosIng, PubChem, ECHA information indicating polymeric inert status.)
- How does VeriMom score hydrogenated styrene/isoprene copolymer?
- VeriMom scores hydrogenated styrene/isoprene copolymer at 100/100 (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 hydrogenated styrene/isoprene copolymer?
- See our curated list of pregnancy-safe alternatives to hydrogenated styrene/isoprene copolymer 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.