Soy isoflavones are also thought to be useful for situations when natural estrogen levels are low, such as during and after menopause. Low estrogen levels can cause skin thinning and collagen loss and soy isoflavones might be able to help with that.
Show me some proof
- Baumann, LESLIE S. "Cosmeceutical critique: soy and its isoflavones." Skin & Allergy News 32 (2001): 17.