VeriMomShould I Avoid m-phenylenediamine During Pregnancy? | VeriMom
CIR’s safety review (1997 summary) reports one animal study with fetal deaths (other studies negative) and identifies measurable percutaneous absorption and metabolites — this supports a “suspected” reproductive hazard (h=2) rather than confirmed teratogen. No well‑characterised reproductive mechanism was found, only limited mechanistic data (hence m=1). Dermal absorption from hair‑dye use is reported as low but measurable, so exposure from typical topical cosmetic use is scored e=1. (Sources: CIR summary/CosmeticsInfo; PubMed animal study; ECHA registration dossier.)
ECHA regulatory hazard statements
- •H341
- •H331
- •H311
- •H301
- •H319
- •H317
- •H400
- •H410
What to use instead
Pregnancy-safe ingredients that serve a similar function:
FAQ
- Is m-phenylenediamine safe during pregnancy?
- CIR’s safety review (1997 summary) reports one animal study with fetal deaths (other studies negative) and identifies measurable percutaneous absorption and metabolites — this supports a “suspected” reproductive hazard (h=2) rather than confirmed teratogen. No well‑characterised reproductive mechanism was found, only limited mechanistic data (hence m=1). Dermal absorption from hair‑dye use is reported as low but measurable, so exposure from typical topical cosmetic use is scored e=1. (Sources: CIR summary/CosmeticsInfo; PubMed animal study; ECHA registration dossier.)
- Is m-phenylenediamine safe while breastfeeding?
- There are no robust human breastfeeding studies identified. The same animal evidence (fetal death in at least one study) and CIR finding of measurable dermal absorption support a conservative ‘suspected’ hazard for reproductive/developmental endpoints (h=2) and a theoretical mechanism only (m=1). Dermal exposure during use (hair dyes) is low but measurable (e=1); transfer into breastmilk was not specifically documented in available sources. (Sources: CIR summary/CosmeticsInfo; PubMed study; ECHA dossier.)
- Is m-phenylenediamine safe for baby skin?
- Hazard (h) and mechanism (m) are unchanged because no infant‑specific reproductive mechanism data were found. Adult dermal absorption is measurable; per instructions, increase exposure score by +1 for 0–3‑year‑old skin when absorption is measurable — adult e=1 → baby e=2. No infant‑specific dermal absorption or toxicokinetic studies were located. (Sources: CIR summary/CosmeticsInfo; ECHA registration; guidance on absorption in CIR review.)
- How does VeriMom score m-phenylenediamine?
- VeriMom scores m-phenylenediamine 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 m-phenylenediamine?
- See our curated list of pregnancy-safe alternatives to m-phenylenediamine 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.