PEG/PPG-5/2 Potassium Dimethicone Thiosulfate Copolyol

INCI: PEG/PPG-5/2 POTASSIUM DIMETHICONE THIOSULFATE COPOLYOL

CAS Number
Not individually assigned
Function
Surfactant (anionic, via thiosulfate salt)
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Not restricted by FDA. No individual CIR monograph. Not directly covered by existing CIR silicone copolymer reviews.

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Very limited safety data โ€” thiosulfate functional group is unusual in cosmetic silicones. CPSR assessor must obtain full supplier tox dossier. Cannot rely on standard PEG/PPG dimethicone read-across alone due to unique thiosulfate chemistry. Potassium counterion โ€” verify electrolyte compatibility in formulation. 1,4-Dioxane and D4/D5 controls apply.

โš ๏ธ
Concern Level: Moderate

Regulatory Flags

peg-ingredient

Frequently Asked Questions

Is PEG/PPG-5/2 Potassium Dimethicone Thiosulfate Copolyol safe in cosmetics?

Very limited safety data โ€” thiosulfate functional group is unusual in cosmetic silicones. CPSR assessor must obtain full supplier tox dossier. Cannot rely on standard PEG/PPG dimethicone read-across alone due to unique thiosulfate chemistry. Potassium counterion โ€” verify electrolyte compatibility in formulation. 1,4-Dioxane and D4/D5 controls apply. The EU classifies PEG/PPG-5/2 Potassium Dimethicone Thiosulfate Copolyol as "permitted". Safety rating: MODERATE.

Is PEG/PPG-5/2 Potassium Dimethicone Thiosulfate Copolyol allowed in the EU?

PEG/PPG-5/2 Potassium Dimethicone Thiosulfate Copolyol EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does PEG/PPG-5/2 Potassium Dimethicone Thiosulfate Copolyol do in cosmetics?

PEG/PPG-5/2 Potassium Dimethicone Thiosulfate Copolyol functions as: Surfactant (anionic, via thiosulfate salt). It is classified as a cosmetic ingredient in our database. CAS number: Not individually assigned.

What is the Margin of Safety for PEG/PPG-5/2 Potassium Dimethicone Thiosulfate Copolyol?

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.

๐Ÿ“ฑ

Is PEG/PPG-5/2 Potassium Dimethicone Thiosulfate Copolyol in Your Products?

Scan any product label with Piro โ€” our free ingredient scanner. Point your camera at the ingredients list and get instant safety scores for every ingredient.

Try Piro Free โ†’

Analyze Your Full Ingredient List

Paste any INCI list into the Decoder for instant safety analysis, or calculate the Margin of Safety for PEG/PPG-5/2 Potassium Dimethicone Thiosulfate Copolyol in your formulation.