Collagen regeneration possible?

I've read this article on how to replenish lost collagen. Basically, as any material, collagen is subject to wear and tear: it slowly breaks down over time. Skin cells called fibroblasts are capable of producing collagen. When needed, fibroblasts replace broken collagen fibers with new ones. But how do you get those fibroblasts to so??? The article never went into details. So I'm wondering if anyone more educated would elaborate on this subject. I'm really interested in finding out how to stimulate collagen synthesis to prevent wrinkles.