In the following study, the effects of topical 0.01% estradiol and 0.3% estriol compounds were measured in preclimacteric women with skin aging symptoms. After treatment for 6 months, elasticity and firmness of the skin had markedly improved; wrinkle depth and pore sizes had decreased by 61 to 100%; skin moisture had increased; and wrinkle depth decreased significantly.

Int J Dermatol 1996 Sep;35(9):669-74
Treatment of skin aging with topical estrogens.

Schmidt JB, Binder M, Demschik G, Bieglmayer C, Reiner A.
Department of Dermatology, University of Vienna Medical School, Austria.

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Br J Dermatol. 2003 Oct; 149(4): 841-9
Randomized, placebo-controlled, double blind study on the clinical efficacy of a cream containing 5% alpha-lipoic acid related to photoageing of facial skin.

Beitner H.
Department of Dermatology, Karolinska Hospital, 17176 Stockholm, Sweden.

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