The scientists said wrinkles are caused due to collagen
collapse inside the skin and products like topical retinoic acid, carbon
dioxide laser resurfacing and injections of cross-linked hyaluronic acid could
take care of the problem.
"We have shown that if you make more collagen go in, it
provides an environment in which fibroblasts recover and make more collagen,"
said lead author John J. Voorhees, M.D., F.R.C.P., chair of the Department of
Dermatology at the U-M Medical School.
The findings are based on a review of many studies conducted
over the past decade and could allow consumers to make informed decisions when
choosing such products.