Wednesday Bubble: Rub-a-dub-dub

Posted by Liz on Sep 17, 2008 in appearance, estrogen | 2 comments

Is a youthful appearance only a rub-a-dub-dub away?

I ran across an interesting article in the UK’s Daily Telegraph on topical estrogen. Evidently, applying estrogen to the skin can stimulate collagen production and provide a more youthful appearance.

Seems like a great post for a Wednesday Bubble, right?

A closer read of the study on which the article was based suggests that it’s not quite that easy….or accurate.

Here’s what you need to know:

A University of Michigan research team evaluated the effects of applying various strengths of topical estrogen (estradiol) to the hip, forearm and face. Study participants comprised 40 postmenopausal women and 30 men (average age ~75 years). The cream, which varied in strength between 0.01% and 2.5%, was applied three times daily for two weeks. In addition to comparisons between the cream strengths, comparisons were also made to a placebo cream.

The results showed that topical estrogen applied to areas protected from the sun (i.e. the hip) increased production of procollagen I and III, and collagen I protein levels. For your information, pro-collagen type 1 is the precursor of collagen type 1, the most abundant form of collagen found in the body. Pro-collagen type III the precursor to the main component of the fibers that are found alongside the collagen.

However, no significant changes were observed in the photoaged skin of the forearm or the face, even though estrogen receptors were stimulated.

So, what’s the bottom line?

The study results suggest that while topical estrogen can stimulate collagen production in sun-protected areas, it does not affect the appearance of photo-aged skin, (i.e. skin that has been exposed to the sun or other elements).

In other words, topical estrogen is not yet a panacea for aging skin.