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HIGH RISK

Should I Avoid c10-11 isoparaffin During Pregnancy? | VeriMom

Reviewed by · Last reviewed

ECHA regulatory hazard statements

  • H350

Products containing c10-11 isoparaffin — check your shelf

These products list c10-11 isoparaffin on their INCI. If one is in your routine, consider swapping it during pregnancy.

What to use instead

Pregnancy-safe ingredients that serve a similar function:

Pregnancy-safe products to use instead

Products built around the safer ingredients above, scored "no known risks" or "low risk".

Sources & references

Authoritative references used to score this ingredient.

Pregnancy-Safe Alternatives to c10-11 isoparaffin | VeriMom

IngredientsPregnancy-Safe Ingredients Database — 28,000+ Ingredients Rated

See also

FAQ

Is c10-11 isoparaffin safe during pregnancy?
CIR/cosmetics reviews treat C10–11 isoparaffins as acceptable in cosmetic topical use, but inhalation and high‑dose studies with hydrotreated naphtha (CAS 64742-48-9 or related LBPN categories) have reported developmental/reproductive findings in animals; therefore there is suspected reproductive risk based on animal data (not harmonised CLP). No well‑defined molecular reproductive mechanism is reported (the concern is from animal studies), and dermal cosmetic use is expected to give low but measurable exposure. Sources: CIR/cosmetics review (no reproductive classification), ECHA/REACH dossier and government reviews noting developmental findings, and peer‑reviewed inhalation studies showing effects at high concentrations.
Is c10-11 isoparaffin safe while breastfeeding?
Same basis as pregnancy: animal developmental/reproductive effects have been reported for hydrotreated naphtha streams; no infant‑specific evidence of transfer in human milk but lipophilic hydrocarbons can partition into lipid compartments. For topical cosmetic use, exposure is expected to be low but measurable; no harmonised classification or SCCS/CIR contraindication specific to breastfeeding was identified.
Is c10-11 isoparaffin safe for baby skin?
For direct application to infant (0–3 yr) skin, there is no infant‑specific evidence of reproductive toxicity; however baby skin has higher absorption (immature barrier), so exposure score is increased by +1. Primary concerns for babies are local irritation and systemic exposure due to immature barrier; the literature and SDS/regulatory reviews report skin irritation at higher exposures for naphtha materials but do not identify a well‑characterised reproductive mechanism in infants.
How does VeriMom score c10-11 isoparaffin?
VeriMom scores c10-11 isoparaffin at 27/100 (high risk) 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 c10-11 isoparaffin?
See our curated list of pregnancy-safe alternatives to c10-11 isoparaffin 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.

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