Excellent Cosmetic Ingredient

Propoxytetramethyl Piperidinyl Dimethicone

INCI: PROPOXYTETRAMETHYL PIPERIDINYL DIMETHICONE

CAS Number
Specialty silicone; no widely published CAS in standard databases
Function
Skin conditioning; antioxidant (hindered amine light stabilizer functionality from piperidinyl group); skin protectant
Safety Rating
EXCELLENT

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes Permitted under general cosmetic provisions; silicone derivatives are generally accepted

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

Safety Data

Margin of Safety (MoS)
adequate
Dermal Absorption
negligible
Sensitization
none

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Limited published safety data specific to this derivative. Piperidinyl (HALS-type) functionality is well-established in polymer science but less documented in cosmetic toxicology. Cyclic siloxane impurity (D4/D5/D6) contamination must be verified — EU restricts D4 ≥0.1% in wash-off and D5/D6 in leave-on products. Requires supplier CoA for cyclic siloxane levels

⚠️
Concern Level: None

Frequently Asked Questions

Is Propoxytetramethyl Piperidinyl Dimethicone safe in cosmetics?

Limited published safety data specific to this derivative. Piperidinyl (HALS-type) functionality is well-established in polymer science but less documented in cosmetic toxicology. Cyclic siloxane impurity (D4/D5/D6) contamination must be verified — EU restricts D4 ≥0.1% in wash-off and D5/D6 in leave-on products. Requires supplier CoA for cyclic siloxane levels The EU classifies Propoxytetramethyl Piperidinyl Dimethicone as "permitted". Safety rating: EXCELLENT.

Is Propoxytetramethyl Piperidinyl Dimethicone allowed in the EU?

Propoxytetramethyl Piperidinyl Dimethicone EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Propoxytetramethyl Piperidinyl Dimethicone do in cosmetics?

Propoxytetramethyl Piperidinyl Dimethicone functions as: Skin conditioning; antioxidant (hindered amine light stabilizer functionality from piperidinyl group); skin protectant. It is classified as a cosmetic ingredient in our database. CAS number: Specialty silicone; no widely published CAS in standard databases.

What is the Margin of Safety for Propoxytetramethyl Piperidinyl Dimethicone?

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.

Compliance Tools

Check Propoxytetramethyl Piperidinyl Dimethicone compliance across multiple jurisdictions:

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Ingredient Decoder
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82 Allergen Checker
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Substance Compliance
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MoS Calculator
Calculate Margin of Safety using SCCS methodology
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Heavy Metal Limits
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