1-(5,6,7,8-Tetrahydro-3,5,5,6,8,8,-hexamethyl-2-naphthyl)ethan-1-one (AHTN)

1-(5,6,7,8-Tetrahydro-3,5,5,6,8,8,-hexamethyl-2-naphthyl)ethan-1-one (AHTN) in plain language

What it is

On cosmetic ingredient lists it appears as “Acetyl hexamethyl tetralin”.

Also known as Acetyl hexamethyl tetralin

What it does

We don't have a plain-language description for 1-(5,6,7,8-Tetrahydro-3,5,5,6,8,8,-hexamethyl-2-naphthyl)ethan-1-one (AHTN) yet.

Is it a concern?

High concern: no hazard classifications on record. It is restricted in EU cosmetics.

Why it's flagged

1-(5,6,7,8-Tetrahydro-3,5,5,6,8,8,-hexamethyl-2-naphthyl)ethan-1-one (AHTN) is restricted in cosmetic products under Annex III of the EU Cosmetics Regulation (EC) 1223/2009.

RestrictedEU EC — restricted

The score describes this ingredient's chemical identity — its hazard profile from published classifications and regulatory status — not the safety of any product it appears in.

• EU Annex III — restricted
• EU restricted in cosmetics

• EU·EC

  Annex III of EU Cosmetics Regulation (EC) 1223/2009: substances which cosmetic products must not contain except subject to the restrictions laid down. Product types: All cosmetic products with the exception of oral products Maximum concentration: (a) leave-on products: 0.1% except:hydroalcoholic products: 1% fine fragrance: 2.5%fragrance cream: 0.5% (b) rinse-off products: 0.2%

  restricted
  View source →

• EU·CosIng·ActiveCosmetics Regulation annex III / ref 182.

  • Cosmetics Regulation annex III / ref 182.Source →

Expert safety opinions

No expert opinion on file for 1-(5,6,7,8-Tetrahydro-3,5,5,6,8,8,-hexamethyl-2-naphthyl)ethan-1-one (AHTN). These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.

• SCCS

  EU Scientific Committee on Consumer Safety

  No SCCS opinion on file.

• CIR

  Cosmetic Ingredient Review (US expert panel)

  No CIR safety assessment on file.