Is quaternium-18 hectorite safe during pregnancy?
Reviewed by VeriMom Editorial Team · Last reviewed
Pregnancy-Safe Ingredients Database — 28,000+ Ingredients Rated
quaternium-18 hectorite
NO KNOWN RISKS100
/100
0









Pregnancy-safe products containing quaternium-18 hectorite

ISEHAN Kiss Me Heroine Make Long & Curl Super Waterproof Mascara (New Version) - 6g - 02 Brown (2ea) Set
99/100

ISEHAN Kiss Me Heroine Make Prime Liquid Eyeliner Rich Keep - 0.4ml - 01 Black
99/100

OXX Skincare
OXX Skincare Tinted Lip Serum Dusty Rose 15mL
99/100

ISEHAN Kiss Me Heroine Make Prime Liquid Eyeliner Rich Keep - 0.4ml - 03 Light Brown
99/100

ISEHAN Kiss Me Heroine Make Long & Curl Super Waterproof Mascara (New Version) - 6g - 02 Brown
99/100

P.Louise
P.Louise Base Shade
99/100

P.Louise
P.Louise Badda Black Base
99/100

Cow Brand
Cow Brand Soap Additive Free Face Wash
98/100

Aveeno
Aveeno Skin Relief Shower And Bath Oil
97/100

Magicminerals
Magicminerals Airfinish Setting Spray
97/100
Related ingredients
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Sources & references
Authoritative references used to score this ingredient.
Frequently asked questions
- Is quaternium-18 hectorite safe during pregnancy?
- The Cosmetic Ingredient Review (CIR) reviewed ammonium/hectorite ingredients including quaternium‑18 hectorite and concluded they are safe as used in cosmetics; no harmonised CLP reproductive classifications (H360/H361) were identified. No direct animal or human reproductive/teratogenic data for this specific ingredient were found. ([pubmed.ncbi.nlm.nih.gov](https://pubmed.ncbi.nlm.nih.gov/24335966/?utm_source=openai))
- Is quaternium-18 hectorite safe while breastfeeding?
- No evidence of reproduction/breastfeeding-specific hazard in the CIR assessment or in available literature for the quaternium‑18 hectorite complex; no harmonised classification or CIR contraindication for nursing. General concerns about some quaternary ammonium compounds (QACs) exist in the literature, but those are broad class findings and do not constitute direct evidence for this organo‑clay complex. ([pubmed.ncbi.nlm.nih.gov](https://pubmed.ncbi.nlm.nih.gov/24335966/?utm_source=openai))
- Is quaternium-18 hectorite safe for baby skin?
- Following CIR’s assessment (safe as used) there is no reproductive/specific infant hazard evidence for the ingredient itself. Dermal/systemic absorption from topical cosmetic use is regarded as negligible for clay/organoclay rheology agents in typical formulations, so adult exposure score is 0; per instruction, infant exposure is increased by +1 because baby skin has higher absorption even when adult absorption is negligible and the ingredient is not known to be entirely non‑absorbable. No infant‑specific toxicity data were found. ([pubmed.ncbi.nlm.nih.gov](https://pubmed.ncbi.nlm.nih.gov/24335966/?utm_source=openai))
- How does VeriMom score quaternium-18 hectorite?
- VeriMom scores quaternium-18 hectorite 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 quaternium-18 hectorite?
- See our curated list of pregnancy-safe alternatives to quaternium-18 hectorite 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.