Thalassiosira Pseudonana Extract

INCI: THALASSIOSIRA PSEUDONANA EXTRACT

CAS Number
Not assigned (no CAS listed in CosIng or major databases)
Function
Skin protecting — derived from marine diatom microalgae; associated with hydration, remineralization, and collagen support
Safety Rating
GOOD

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes Permitted under general FDA cosmetic provisions; no specific CIR review

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

Safety Data

Margin of Safety (MoS)
adequate
Dermal Absorption
low
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Very limited independent safety data; uncommon ingredient with minimal regulatory scrutiny; safety responsibility falls on the Responsible Person

⚠️
Concern Level: Low

Regulatory Flags

plant-extract

Frequently Asked Questions

Is Thalassiosira Pseudonana Extract safe in cosmetics?

Very limited independent safety data; uncommon ingredient with minimal regulatory scrutiny; safety responsibility falls on the Responsible Person The EU classifies Thalassiosira Pseudonana Extract as "permitted". Safety rating: GOOD.

Is Thalassiosira Pseudonana Extract allowed in the EU?

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

What does Thalassiosira Pseudonana Extract do in cosmetics?

Thalassiosira Pseudonana Extract functions as: Skin protecting — derived from marine diatom microalgae; associated with hydration, remineralization, and collagen support. It is classified as a cosmetic ingredient in our database. CAS number: Not assigned (no CAS listed in CosIng or major databases).

What is the Margin of Safety for Thalassiosira Pseudonana Extract?

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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