Is polyquaternium-39 safe for baby skin?
Reviewed by VeriMom Editorial Team · Last reviewed
Baby skin
polyquaternium-39
NO KNOWN RISKS93
/100
Also relevant: pregnancy safety
Want to know if polyquaternium-39 is also safe during pregnancy?
Is polyquaternium-39 safe during pregnancy? →Gentle products containing polyquaternium-39
cleansers
Estée Lauder
Estée Lauder Nutritious Micro-Algae Cleansing Bar

Isntree Hyaluronic Acid Low-pH Cleansing Foam - 150ml

Isntree
Isntree Hyaluronic Acid Low-Ph Cleansing Foam

mamaearth
Mamaearth Onion Hair Serum

Hada Labo
Hada Labo Koujin Treatment Cleansing Foam

Estée Lauder
Estée Lauder Nutritious Micro-Algae Cleansing Bar

Johnson's
Johnson's Body Care Extra Rich Moisturising Cream Body Wash

Avoskin
Avoskin Aloe Vera Facial Wash
Sources & references
Authoritative references used to score this ingredient.
Ingredients — Pregnancy-Safe Ingredients Database — 28,000+ Ingredients Rated
See also
Frequently asked questions
- Is polyquaternium-39 safe for baby skin?
- No evidence of specific developmental or pediatric toxicity. Mechanistic data lacking. Exposure score increased to 1 for infants because baby skin has higher permeability/surface‑area‑to‑weight ratio; although the polymer is expected to have low systemic absorption, neonatal skin makes low but measurable exposure more plausible (ECHA, CosIng, PubChem).
- Is polyquaternium-39 safe for newborns?
- No evidence of specific developmental or pediatric toxicity. Mechanistic data lacking. Exposure score increased to 1 for infants because baby skin has higher permeability/surface‑area‑to‑weight ratio; although the polymer is expected to have low systemic absorption, neonatal skin makes low but measurable exposure more plausible (ECHA, CosIng, PubChem).
- Can I use polyquaternium-39 on a baby under 6 months?
- We don't have baby-skin-specific data for polyquaternium-39. Stick to ingredients we've marked no known risks for babies until more evidence is available.
- What are safer alternatives to polyquaternium-39 for babies?
- See our curated list of pregnancy-safe alternatives to polyquaternium-39 based on similar function and a no-known-risks safety band.
- How does VeriMom rate polyquaternium-39 for baby skin?
- VeriMom scores polyquaternium-39 at 93/100 (no known risks) based on EU CosIng status, ECHA hazard classifications, and peer-reviewed PubMed studies. Our scoring pipeline is fully transparent.
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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.