Methylthioadenosine

INCI: METHYLTHIOADENOSINE

CAS Number
2457-80-9
Function
Skin conditioning agent
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Not prohibited or restricted; FDA UNII: 634Z2VK3UQ

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

CIR (Cosmetic Ingredient Review) has assessed adenosine-related ingredients as skin-conditioning agents; MTA is a natural metabolite with generally favorable safety profile; used at 0.05-2% in formulations. Chemically 5'-deoxy-5'-(methylthio)adenosine, a natural metabolite of S-adenosylmethionine; patent literature describes antireddening, dermoprotective, and melanin-modulating activity; can function as an antagonist to melanin production receptors

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Concern Level: Moderate

Regulatory Flags

natural-origin

Frequently Asked Questions

Is Methylthioadenosine safe in cosmetics?

CIR (Cosmetic Ingredient Review) has assessed adenosine-related ingredients as skin-conditioning agents; MTA is a natural metabolite with generally favorable safety profile; used at 0.05-2% in formulations. Chemically 5'-deoxy-5'-(methylthio)adenosine, a natural metabolite of S-adenosylmethionine; patent literature describes antireddening, dermoprotective, and melanin-modulating activity; can function as an antagonist to melanin production receptors The EU classifies Methylthioadenosine as "permitted". Safety rating: MODERATE.

Is Methylthioadenosine allowed in the EU?

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

What does Methylthioadenosine do in cosmetics?

Methylthioadenosine functions as: Skin conditioning agent. It is classified as a cosmetic ingredient in our database. CAS number: 2457-80-9.

What is the Margin of Safety for Methylthioadenosine?

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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