Synopsis

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

Watercress (Nasturtium officinale) has been used traditionally in various cultures for its purported health benefits, including for skin health. Scientifically, watercress is rich in vitamins A, C, and E, as well as antioxidants like beta-carotene and glucosinolates, which are thought to help protect skin cells from oxidative stress and support collagen production. Some small studies and in vitro research suggest these nutrients can contribute to improved skin appearance and reduced inflammation. For example, a small clinical study published in 2016 found that daily consumption of watercress for eight weeks led to improvements in skin antioxidative status and a reduction in DNA damage in skin cells. Additionally, the vitamin C content in watercress is well-established for its role in collagen synthesis and skin repair. However, the direct evidence for watercress as a treatment for general skin conditions (such as acne, eczema, or aging) is limited and mostly extrapolated from its nutrient profile and general antioxidant effects rather than from large, high-quality clinical trials specifically targeting skin health. Most claims are supported by its overall nutritional benefits and a few small-scale studies rather than robust, condition-specific research. In summary, while there is some scientific rationale and early evidence for watercress supporting skin health, more rigorous human studies are needed to substantiate its efficacy for specific skin care concerns.

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