Glyceryl Thiopropionate

INCI: GLYCERYL THIOPROPIONATE

CAS Number
Not widely assigned (listed in CosIng)
Function
Hair waving and straightening agent
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status prohibited
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Permitted โ€” no specific CFR restriction

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

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
moderate
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

CIR reviewed glyceryl monoesters broadly and found them safe at current use concentrations. Thio-functional group warrants caution โ€” monitor for hydrolysis to free thiol in formulation. Undiluted monoesters may cause minor irritation on abraded skin.

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Concern Level: Moderate

Frequently Asked Questions

Is Glyceryl Thiopropionate safe in cosmetics?

CIR reviewed glyceryl monoesters broadly and found them safe at current use concentrations. Thio-functional group warrants caution โ€” monitor for hydrolysis to free thiol in formulation. Undiluted monoesters may cause minor irritation on abraded skin. The EU classifies Glyceryl Thiopropionate as "prohibited". Safety rating: MODERATE.

Is Glyceryl Thiopropionate allowed in the EU?

Glyceryl Thiopropionate EU regulatory status: prohibited. This is based on EU Regulation 1223/2009 and its amendments.

What does Glyceryl Thiopropionate do in cosmetics?

Glyceryl Thiopropionate functions as: Hair waving and straightening agent. It is classified as a cosmetic ingredient in our database. CAS number: Not widely assigned (listed in CosIng).

What is the Margin of Safety for Glyceryl Thiopropionate?

not established 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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