Good Cosmetic Ingredient NOAEL Data

Tetrahydrolinalool

INCI: TETRAHYDROLINALOOL

CAS Number
78-69-3
Function
Fragrance Ingredient (floral, fresh, citrus profile)
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status restricted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes GRAS as flavoring agent (21 CFR 172.515; FEMA 3060); permitted in cosmetics as fragrance

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Toxicological Studies

4 study endpoints found for Tetrahydrolinalool. NOAEL (No Observed Adverse Effect Level) values are used to calculate the Margin of Safety per SCCS methodology.

Endpoint Value Route Species Study Type Source
NOAEL 5000 ppm oral rat oral REACH
NOAEL 250 mg/kg bw/day dermal rat dermal REACH
NOAEL 160 mg/kg bw/day oral rat oral REACH
NOAEL 200 mg/kg bw/day oral rat oral REACH

Expert Verdict

Weak sensitizer in LLNA; IFRA restricted; very stable in formulations; widely used benchmark for read-across to related terpene alcohols

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Concern Level: Moderate

Regulatory Flags

potential-allergen fragrance-component epa_safer_alternative ifra_fragrance fda_food_additive jecfa_safe

Frequently Asked Questions

Is Tetrahydrolinalool safe in cosmetics?

Weak sensitizer in LLNA; IFRA restricted; very stable in formulations; widely used benchmark for read-across to related terpene alcohols The EU classifies Tetrahydrolinalool as "restricted". Safety rating: GOOD. 4 toxicological study endpoint(s) are available in our database.

Is Tetrahydrolinalool allowed in the EU?

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

What does Tetrahydrolinalool do in cosmetics?

Tetrahydrolinalool functions as: Fragrance Ingredient (floral, fresh, citrus profile). It is classified as a cosmetic ingredient in our database. CAS number: 78-69-3.

What is the Margin of Safety for Tetrahydrolinalool?

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.

What is the NOAEL for Tetrahydrolinalool?

The NOAEL (No Observed Adverse Effect Level) for Tetrahydrolinalool is 5000 ppm based on a oral study via oral route in rat. A total of 4 study endpoints are available. Source: REACH.

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