Brassica Oleracea Acephala Leaf Extract
INCI: kale
Reviewed by Emma · Last updated 14 Aug 2026
Also known as: kale
Commonly known as kale Rich source of antioxidants for skin
EWG Safety Score
What Is Brassica Oleracea Acephala Leaf Extract?
Brassica oleracea acephala leaf extract is a long name to describe green kale leaves. This plant extract is a rich source of antioxidants for skin and bodily health, given kale leaf is also consumed as a food source.
Among the primary antioxidants in kale leaf are beta-carotene, vitamin C, chlorogenic acid, and numerous types of glucosinolates, compounds which break down to help defend skin and the body (when kale is eaten) from carcinogenic threats.
Kale is a member of the Brassicaceae family of vegetables which also includes brussels sprouts, cauliflower, broccoli, and arugula. All of these nutrient-rich plants help skin defend itself from environmental aggressors such as UV light and airborne pollutants.
Kale leaf has also been shown to help strengthen surface skin cells as a means of keeping its moisture barrier intact and smooth.
Usage levels of Brassica oleracea acephala leaf extract in cosmetics hovers around 1% when it’s part of a blend. It may also be supplied on its own, as a powder, in which case higher levels that impart a green color to cosmetics are necessary.
Clinical Evidence & References
Published Research
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Caffeine in skincare: mechanism of action Journal of Cosmetic Dermatology, 2013
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Topical caffeine for treatment of cellulite Journal of Cosmetic and Laser Therapy, 2008
Frequently Asked Questions
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