According to a new research, the application of the female hormone estrogen to the skin stimulates the production of collagen and thereby makes the skin look young. This research, conducted by Laure Rittié and colleagues from the University of Michigan, has been reported in the Archives of Dermatology journal.

Highlights of the research
a. This research was conducted on 70 men and women with an average age of 75.
b. The subjects applied the hormone oestradiol, a form of estrogen, to their skin 3 times a day for 2 weeks.
c. The hormone was applied on skin that had been sheltered from the sun, like the hip, as well as sun damaged areas like the face.
d. Researchers then studied the tissue samples taken 24 hours after the cream was last applied.
e. This revealed that collagen production of collagen in the protected skin increased significantly.
f. However, there was no improvement in damaged skin.
g. Researchers concluded that the body's ability to create its own collagen is inhibited by the rays of the sun.