TLDR Soy can improve skin, hair, and nails.
The chapter discussed the potential benefits of soy and soy isoflavones for dermatological health, particularly focusing on skin, hair, and nails. It was found that dietary soy consumption for 3-6 months improved skin health and fingernail appearance in both pre- and postmenopausal women, with premenopausal women experiencing quicker benefits for nails. Hair appearance and manageability also improved, though to a lesser extent. Evidence suggested that soy protein and isoflavones, when applied topically, enhanced skin health, and dietary soy might complement these effects, although most studies were conducted on animals. Overall, the data indicated that soy consumption could enhance the appearance of skin, hair, and nails, supporting a combined dietary and topical approach to personal care.
17 citations
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March 2004 in “Journal of Investigative Dermatology” Soymetide-4 from soy can prevent hair loss caused by a cancer drug in rats.
61 citations
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February 2003 in “Experimental Dermatology” Soy oil and genistein reduce hair loss risk in mice.
23 citations
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December 2001 in “Experimental dermatology” Soymilk can slow hair growth and make hair thinner.
2 citations
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June 2023 in “Journal of clinical medicine” Soy supplements improve various skin conditions and aging signs, with topical use boosting skin barrier function.
6 citations
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January 2011 in “Springer eBooks” Nutrition is important for skin health, and changing diet can help prevent and treat skin diseases.
1 citations
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January 2013 in “Springer eBooks” Cosmeceuticals may benefit skin health but need more research for efficacy and safety confirmation.
5 citations
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September 2023 in “Nutrients” Soy protein with isoflavones reduces wrinkles and improves skin hydration in postmenopausal women.
1 citations
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August 2023 in “International journal of pharmacy & integrated health sciences” Cosmeceuticals are popular for their skin health benefits and anti-aging effects.
