Moderate Cosmetic Ingredient

Silicone Quaternium-15

INCI: SILICONE QUATERNIUM-15

CAS Number
No CAS publicly listed in major databases
Function
Hair Conditioning, Antistatic (inferred from class)
Safety Rating
MODERATE

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes Permitted for cosmetic use — no specific restriction

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

Do NOT confuse with Quaternium-15 (CAS 51229-78-8), a formaldehyde-releasing preservative that is a major contact allergen and restricted in many markets. Silicone Quaternium-15 is a completely different chemical class. Minimal published safety data for this specific silicone

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Concern Level: Moderate

Regulatory Flags

potential-allergen

Frequently Asked Questions

Is Silicone Quaternium-15 safe in cosmetics?

Do NOT confuse with Quaternium-15 (CAS 51229-78-8), a formaldehyde-releasing preservative that is a major contact allergen and restricted in many markets. Silicone Quaternium-15 is a completely different chemical class. Minimal published safety data for this specific silicone The EU classifies Silicone Quaternium-15 as "permitted". Safety rating: MODERATE.

Is Silicone Quaternium-15 allowed in the EU?

Silicone Quaternium-15 EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Silicone Quaternium-15 do in cosmetics?

Silicone Quaternium-15 functions as: Hair Conditioning, Antistatic (inferred from class). It is classified as a cosmetic ingredient in our database. CAS number: No CAS publicly listed in major databases.

What is the Margin of Safety for Silicone Quaternium-15?

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.

Compliance Tools

Check Silicone Quaternium-15 compliance across multiple jurisdictions:

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Ingredient Decoder
Paste a full ingredient list for instant analysis
 🌸
82 Allergen Checker
Check for EU declarable fragrance allergens
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Substance Compliance
Check compliance across 55 jurisdictions
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MoS Calculator
Calculate Margin of Safety using SCCS methodology
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Heavy Metal Limits
Compare limits across jurisdictions

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Moderate
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