Is polyester-4 safe during pregnancy?
Reviewed by VeriMom Editorial Team · Last reviewed
Pregnancy-Safe Ingredients Database — 28,000+ Ingredients Rated
polyester-4
NO KNOWN RISKS100
/100
0









Pregnancy-safe products containing polyester-4

Essence
Lash princess
99/100

ONE/SIZE by Patrick Starrr
ONE/SIZE by Patrick Starrr Turn Up The Base Versatile Powder Foundation
99/100

Fenty beauty
Fenty Beauty Pro Filt'R Soft Matte Powder Foundation
84/100

Essence
Essence Lash Princess False Lash Mascara
84/100

Eyenvy
Eyenvy Volume Fiber Mascara
84/100

Essence
Essence Volume Stylist 18H Lash Extension Mascara
84/100

Hema
Hema All-In-One Mascara Waterproof
84/100

Essence
Essence What The Fake! Volumizing & Lengthening Mascara
84/100

Farmasi Dr C Tuna
Farmasi Dr C Tuna Green Vegan Mascara
84/100

Catrice
Catrice Glam & Doll Easy Wash Off Power Hold Volume Mascara
84/100
Related ingredients
See also
Sources & references
Authoritative references used to score this ingredient.
Frequently asked questions
- Is polyester-4 safe during pregnancy?
- No authoritative reproductive-hazard classification or safety assessment (no harmonised CLP entry, no SCCS/CIR reproductive flags) was found for the INCI name Polyester-4; supplier and cosmetic ingredient databases list it as a cosmetic polymer/emollient (LexFeel™ 700 MB) used in color cosmetics. Given lack of reproductive/toxicology data and no harmonised flags, default hazard/mechanism = 0 and exposure from topical use is considered negligible. (Sources: supplier / INCI entries).
- Is polyester-4 safe while breastfeeding?
- No evidence of reproductive or lactation-specific toxicity, no harmonised CLP classification, and no published studies indicating transfer into milk. Cosmetic usage information describes Polyester-4 as a high‑molecular‑weight cosmetic polymer/emollient with low systemic bioavailability when used topically, so hazard and mechanism score remain 0 and exposure is considered negligible for nursing adults. (Sources: supplier / INCI entries).
- Is polyester-4 safe for baby skin?
- No infant-specific toxicity or dermal developmental findings were identified. Polyester‑4 is used as a film‑forming/emollient polymer in color cosmetics (lipsticks, mascaras) and is likely to have very low dermal absorption in adults; per the scoring rules, because adult absorption is negligible but not proven to be zero, increase exposure by +1 for infants (immature barrier and higher surface‑area:weight). Hazard and mechanism scores remain 0 in absence of any reproductive/developmental data. (Sources: cosmetic ingredient/supplier pages; example formulation showing use in lipstick).
- How does VeriMom score polyester-4?
- VeriMom scores polyester-4 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 polyester-4?
- See our curated list of pregnancy-safe alternatives to polyester-4 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.