Database/Light Stabilizer/Drometrizole Trisiloxane
100% petroleum · ISO 16128

Is Drometrizole Trisiloxane natural?

No. Synthetic benzotriazole UV absorber attached to a silicone (trisiloxane) solubilising tail; both halves are non-natural by this site's convention.

INCI nameDrometrizole Trisiloxane
CAS155633-54-8
FormulaC24H39N3O3Si3 · 501.8 Da
FunctionLight Stabilizer · Uv Absorber
FeedstockDrometrizole Trisiloxane (Mexoryl XL) is synthesised from petrochemical…

How we scored it

Benzotriazole/phenolic UV-chromophore (petrochemical aromatic) linked to a trisiloxane tail (silicone, 0.0 by convention); both fragments petrochemical, so 0.0.
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

Drometrizole Trisiloxane (Mexoryl XL) is synthesised from petrochemical benzotriazole/phenol intermediates joined to a silicone trisiloxane spacer. No natural or extraction route exists for either fragment.

In plain English

A sunscreen filter combining a UV-absorbing molecule with a silicone tail for a smooth after-feel and added stability. It's entirely synthetic, made in a lab.

CosIng definition: Drometrizole Trisiloxane is the heterocyclic compound that conforms to the formula:

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Structure

2D structure of Drometrizole Trisiloxane

2-(benzotriazol-2-yl)-4-methyl-6-[2-methyl-3-[methyl-bis(trimethylsilyloxy)silyl]propyl]phenol

PubChem CID 9848888 ↗

References

  1. 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.
  2. 2Drometrizole Trisiloxane. PubChem CID 9848888. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3DROMETRIZOLE TRISILOXANE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4DROMETRIZOLE TRISILOXANE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=DROMETRIZOLE%20TRISILOXANE