Ideally, we could simply slather ourselves in collagen creams to replace what we’ve lost. The idea that topical collagen can directly proliferate new collagen, however, is still up for debate.

Unsurprisingly, this shopper-loved cream contains retinol, a.k.a. the hero ingredient of anti-aging skin care. Retinol, a form of vitamin A, increases the production of collagen, which our bodies ...