Ingredient

Ethylhexyl Methoxycinnamate (Octinoxate)

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What is Ethylhexyl Methoxycinnamate (Octinoxate)?

Ethylhexyl Methoxycinnamate, commonly known as Octinoxate, is a chemical compound used as a UV filter in many sunscreen and skincare products. It is made by reacting methoxycinnamic acid with 2-ethylhexanol.

This ingredient helps protect the skin from UVB rays, which are responsible for causing sunburn. It is frequently used for its effective sun-protection properties, but there are concerns about its environmental impact and potential effects on human health. Some studies suggest it may disrupt hormones, but the evidence is mixed.

When you see Ethylhexyl Methoxycinnamate on a label, it's usually included for its sun-protection benefits, especially in products like sunscreen and some cosmetics. However, the ingredient's safety profile is under scrutiny by both researchers and regulators.

Commonly found in: Sunscreens, Moisturizers with SPF, Foundations with SPF, Lip balms with SPF, Skin lotions

What to watch

Studies have suggested that it can act as a hormone disruptor, though results are not conclusive.
It has been linked to coral reef bleaching and environmental concerns.

Benefits

Provides effective protection against UVB rays, helping prevent sunburn.

FDA

Octinoxate is approved by the FDA for use in sunscreens up to certain concentrations but is under review for potential hormonal effects.

Research

Research findings are mixed; while it provides sun protection, some studies suggest potential endocrine disruption.

Vegan

This ingredient is synthetic and not derived from animals, making it suitable for vegans.

Sources: Sunscreen Ingredient Review: Octinoxate · Review of Toxicological Literature on Ethylhexyl Methoxycinnamate

Scout's take

Chemical UV filter added to stabilize fragrance color. Confirmed endocrine disruptor with estrogen-receptor binding and anti-androgen activity in cell and animal studies. Banned in Hawaii and several Pacific reef jurisdictions for environmental hormone effects. Pure aesthetic addition — unnecessary in a leave-on cosmetic.

More from Scout's analyses

Chemical UV filter (octinoxate) added for shelf-color stability. A confirmed endocrine disruptor in multiple study types, banned in Hawaii and Pacific reef jurisdictions for environmental hormone effects.

from the analysis of Louis Vuitton Ombre Nomade Eau de Parfum