Bulking Agent
NYLON-6/12
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
A synthetic polyamide powder used as bulking agent and opacifier in powders and makeup. Low skin-penetration and non-sensitizing, but a microplastic under EU phase-out.
Nylon-6/12 (CAS 25191-04-2) is a copolymer of caprolactam and laurolactam used as bulking agent, opacifier and absorbent in loose powders, pressed powders and foundations, typically at 1–35%. CIR (2014, reaffirmed 2023) concluded nylon-6/12 is safe as used; dermal sensitization was negative at 1.4% in face powder, and monomers were neither genotoxic nor carcinogenic. The polymer is too large to cross intact skin. It is however a synthetic microparticle; EU Regulation 2023/2055 restricts intentionally added microplastics in cosmetics, with phased bans through 2029. Evidence level high for human safety, lower for ecotoxicity handling.
Function
Skin benefits
- Bulking and opacifying agent with strong CIR safety data
- Provides soft-focus and slip in powders
- Not a dermal sensitizer at tested use levels
- High-molecular-weight polymer with minimal skin penetration
Known concerns
- Synthetic plastic microparticle — environmental persistence
- EU microplastic restriction (Reg. 2023/2055) phasing out rinse-off and leave-on microbeads
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
Related bulking agents
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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve, so always read the physical product label and consult a healthcare professional for personal concerns.