Is Ambrettolide natural? NOI route-dependent

Q: Is Ambrettolide natural?

Ambrettolide is a route-dependent ingredient — its NOI (0–1) depends on the manufacturing process used. Natural ambrette seed extraction and synthetic petrochemical macrolactonization both supply the market with different feedstock origins, so a single mass fraction cannot apply.

Why the score varies

This ingredient is made commercially by more than one route, and ISO 16128 scores the feedstock actually used. Without a supplier certificate of origin the value cannot be claimed.

Route	Feedstock	NOI	Share	Notes
Natural ambrette seed oil extraction	Hibiscus abelmoschus seed oil	1.00	~15%
Synthetic macrolactonization	petrochemical cyclic/olefin precursors	0.00	~85%

Ask your supplier. A batch-specific certificate of origin or bio-based carbon test (ASTM D6866) settles which route applies.

How we scored it

Two routes diverge: ambrette-seed-oil extraction (whole natural molecule, NOI 1.0) vs synthetic macrolactonization from petrochemical precursors (NOI 0.0). No single fragment arithmetic applies.

What counts. ISO 16128-2 scores the atoms that remain in the final ingredient. Reagents, solvents, catalysts and protecting groups used during manufacture leave no mass behind and are not counted.

Where it comes from

Traditionally isolated from ambrette seed oil (Hibiscus abelmoschus), a natural perfumery material still traded in small volume. Most modern commercial supply is made synthetically from petrochemical precursors.

In plain English

A musky fragrance ingredient chemically resembling compounds once extracted from ambrette seed. Most supply today is made synthetically in a lab, though some natural seed-extracted material is still sold to perfumers.

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References

1ISO 16128-1:2016 and ISO 16128-2:2017 — Guidelines on technical definitions and criteria for natural and organic cosmetic ingredients and products. ISO, Geneva.
2AMBRETTOLIDE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
3AMBRETTOLIDE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=AMBRETTOLIDE