Pepsin

INCI: PEPSIN

CAS Number
9001-75-6
Function
Hair conditioning, skin conditioning (proteolytic enzyme)
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status restricted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes GRAS for food use; permitted in cosmetics under general provisions

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

Safety Data

Margin of Safety (MoS)
adequate
Dermal Absorption
negligible
Sensitization
moderate

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

BSE/TSE compliance mandatory โ€” animal-origin enzyme (typically porcine gastric mucosa). Must provide TSE Certificate of Suitability per EU Regulation 1223/2009, Article 15. Proteolytic activity may cause irritation at high concentrations or low pH.

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Concern Level: Moderate

Regulatory Flags

fda_food_additive

Frequently Asked Questions

Is Pepsin safe in cosmetics?

BSE/TSE compliance mandatory โ€” animal-origin enzyme (typically porcine gastric mucosa). Must provide TSE Certificate of Suitability per EU Regulation 1223/2009, Article 15. Proteolytic activity may cause irritation at high concentrations or low pH. The EU classifies Pepsin as "restricted". Safety rating: GOOD.

Is Pepsin allowed in the EU?

Pepsin EU regulatory status: restricted. This is based on EU Regulation 1223/2009 and its amendments.

What does Pepsin do in cosmetics?

Pepsin functions as: Hair conditioning, skin conditioning (proteolytic enzyme). It is classified as a cosmetic ingredient in our database. CAS number: 9001-75-6.

What is the Margin of Safety for Pepsin?

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.

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