6-Naphthelate ●
TL;DR. It is used mainly as a solvent and photostabilizer in sunscreen and color formulas, helping dissolve oil-soluble UV filters and reduce light-driven breakdown. It can also add emollient slip.
What does 6-Naphthelate do in a cosmetic formula?
It is used mainly as a solvent and photostabilizer in sunscreen and color formulas, helping dissolve oil-soluble UV filters and reduce light-driven breakdown. It can also add emollient slip.
Is 6-Naphthelate clean?
From a clean-beauty lens, this ingredient is a synthetic aromatic ester with limited consumer-facing familiarity and is often flagged by stricter natural standards rather than by classic skin-irritation concerns. It is generally used for performance at low levels, but its petrochemical profile and limited biodegradation data create clean-standard friction.
Is 6-Naphthelate sustainable?
This material is typically made from petrochemical feedstocks. Its bulky aromatic structure is not a strong biodegradability fit, so environmental persistence is the main sustainability concern.
Is 6-Naphthelate COSMOS-approved?
It is not aligned with COSMOS-natural or COSMOS-organic because it is a synthetic petrochemical-derived ester rather than an allowed naturally derived material. In Green Chemistry terms, it scores poorly on renewable feedstock and end-of-life biodegradability, even though it can improve formula stability.
How does 6-Naphthelate work chemically?
The molecule is a hydrophobic aromatic diester with high oil solubility, which makes it useful for stabilizing light-sensitive oil-phase actives. It is typically used in the oil phase of sunscreen systems and is stable across normal cosmetic pH ranges because it is not meaningfully water-soluble.
Last updated 2026-08-22