Synopsis

Source of validity: Scientific
Rating (out of 5): 2

Cucumber (Cucumis sativus) has a longstanding reputation as a soothing agent for skin irritations, including sunburn. This reputation is partially justified by scientific evidence, although most studies are preliminary or focus on related skin conditions rather than sunburn specifically. Cucumber is composed of about 95% water, which helps hydrate the skin when applied topically. It also contains antioxidants such as vitamin C, beta-carotene, and flavonoids, as well as anti-inflammatory compounds like cucurbitacins and lignans. These components may help reduce skin inflammation, redness, and swelling associated with sunburn. Laboratory studies have shown that cucumber extracts can inhibit pro-inflammatory enzymes and promote wound healing in skin cells. Additionally, cucumber’s cooling sensation provides symptomatic relief from the heat and discomfort of sunburned skin.

However, while these properties suggest potential benefits, high-quality clinical trials directly testing cucumber’s effectiveness for sunburn in humans are limited. Most of the supporting evidence comes from in vitro (test tube) or animal studies, or from its use in traditional remedies. As such, cucumber can be considered a low-risk, supportive home remedy for mild sunburn, primarily providing hydration and a cooling effect. For severe sunburn, medical treatments and sun protection remain essential. Overall, cucumber’s use for sunburn is scientifically plausible, but the current level of evidence is modest, warranting a score of 2 out of 5.

More about cucumber
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Other ingredients used for Sunburn

Other health conditions supported by cucumber

Products containing cucumber

Douglas Laboratories Liquid Multivitamin