Sodium Propoxyhydroxypropyl Thiosulfate Silica

INCI: SODIUM PROPOXYHYDROXYPROPYL THIOSULFATE SILICA

CAS Number
Not widely published (specialty functionalized silica)
Function
Hair conditioning, antioxidant; functionalized silica for hair care
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Permitted; no specific restrictions

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Niche ingredient โ€” limited CIR or SCCS review; thiosulfate moiety could theoretically cause irritation at high concentrations; request supplier HRIPT data and full toxicological dossier

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Concern Level: High

Frequently Asked Questions

Is Sodium Propoxyhydroxypropyl Thiosulfate Silica safe in cosmetics?

Niche ingredient โ€” limited CIR or SCCS review; thiosulfate moiety could theoretically cause irritation at high concentrations; request supplier HRIPT data and full toxicological dossier The EU classifies Sodium Propoxyhydroxypropyl Thiosulfate Silica as "permitted". Safety rating: MODERATE.

Is Sodium Propoxyhydroxypropyl Thiosulfate Silica allowed in the EU?

Sodium Propoxyhydroxypropyl Thiosulfate Silica EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Sodium Propoxyhydroxypropyl Thiosulfate Silica do in cosmetics?

Sodium Propoxyhydroxypropyl Thiosulfate Silica functions as: Hair conditioning, antioxidant; functionalized silica for hair care. It is classified as a cosmetic ingredient in our database. CAS number: Not widely published (specialty functionalized silica).

What is the Margin of Safety for Sodium Propoxyhydroxypropyl Thiosulfate Silica?

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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