Cystine Bis‑PG‑Propyl Silanetriol

INCI: CYSTINE BIS-PG-PROPYL SILANETRIOL

CAS Number
Not clearly standardized in public domain; treated as a copolymer of cystine and PG‑propyl silanetriol in ingredient guides
Function
Hair conditioning and strengthening polymer; protects cuticle from damage during combing and heat styling
Safety Rating
GOOD

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes No specific FDA restriction; used as cosmetic hair-care polymer under general safety provisions

For full compliance data across 55 jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety (MoS)
adequate
Dermal Absorption
negligible
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Standard silicone-polymer hair conditioning agent with potential for buildup; ensure residual monomers and catalysts are tightly controlled during manufacturing.

⚠️
Concern Level: Low

Frequently Asked Questions

Is Cystine Bis‑PG‑Propyl Silanetriol safe in cosmetics?

Standard silicone-polymer hair conditioning agent with potential for buildup; ensure residual monomers and catalysts are tightly controlled during manufacturing. The EU classifies Cystine Bis‑PG‑Propyl Silanetriol as "permitted". Safety rating: GOOD.

Is Cystine Bis‑PG‑Propyl Silanetriol allowed in the EU?

Cystine Bis‑PG‑Propyl Silanetriol EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Cystine Bis‑PG‑Propyl Silanetriol do in cosmetics?

Cystine Bis‑PG‑Propyl Silanetriol functions as: Hair conditioning and strengthening polymer; protects cuticle from damage during combing and heat styling. It is classified as a cosmetic ingredient in our database. CAS number: Not clearly standardized in public domain; treated as a copolymer of cystine and PG‑propyl silanetriol in ingredient guides.

What is the Margin of Safety for Cystine Bis‑PG‑Propyl Silanetriol?

adequate The Margin of Safety (MoS) is calculated using SCCS methodology. A MoS above 100 is generally considered safe. Use the MoS Calculator tool to calculate MoS for your specific formulation and product category.

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