Tetradesmus obliquus Extract

INCI: TETRADESMUS OBLIQUUS EXTRACT

CAS Number
Not assigned (biological extract from green microalga *Tetradesmus obliquus*, formerly *Scenedesmus obliquus*)
Function
Skin conditioning, antioxidant (microalgae-derived bioactive extract)
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Permitted as cosmetic ingredient; no specific restrictions, but as a biological extract, composition documentation is expected

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

As a biological extract: batch-to-batch variability, potential for heavy metal accumulation from culture media, protein allergenicity, and need for defined specifications (solvent, extraction ratio, standardized composition). No comprehensive CIR monograph exists for this specific species โ€” safety inferred from related algae reviews

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Concern Level: Moderate

Regulatory Flags

plant-extract potential-allergen

Frequently Asked Questions

Is Tetradesmus obliquus Extract safe in cosmetics?

As a biological extract: batch-to-batch variability, potential for heavy metal accumulation from culture media, protein allergenicity, and need for defined specifications (solvent, extraction ratio, standardized composition). No comprehensive CIR monograph exists for this specific species โ€” safety inferred from related algae reviews The EU classifies Tetradesmus obliquus Extract as "permitted". Safety rating: MODERATE.

Is Tetradesmus obliquus Extract allowed in the EU?

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

What does Tetradesmus obliquus Extract do in cosmetics?

Tetradesmus obliquus Extract functions as: Skin conditioning, antioxidant (microalgae-derived bioactive extract). It is classified as a cosmetic ingredient in our database. CAS number: Not assigned (biological extract from green microalga *Tetradesmus obliquus*, formerly *Scenedesmus obliquus*).

What is the Margin of Safety for Tetradesmus obliquus Extract?

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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