This vitamin-C serum from K-beauty brand COSRX (maker of some of our favorite pimple patches and the cult-favorite snail-mucin essence) contains 23 percent pure vitamin C as well as vitamin E and ...

As you well know, your skin's production of collagen naturally declines with age, adversely impacting firmness, smoothness, tightness, and plumpness. Thus, this serum was designed especially for ...

Might not be the best for tackling existing fine lines and wrinkles Dermatologist Michelle Henry, MD, recommends this multitasking sunscreen serum from Kiehl's. Why? Well, it uses collagen ...

That miracle component? Collagen, the protein that gives your skin structure and helps it snap back like a rubber band. We gradually lose this precious resource every year, but in a perfect world ...

Cathy is a contributing writer at InStyle, and has more than 20 years of experience writing about beauty, wellness, fitness, and health. The serum is lightweight, blends well, and settles in ...

Beauty fans are raving about an Australian brand's vitamin C serum with customers saying they are 'obsessed' with the multi-use beauty buy and branding it 'a game changer.' Sabbia Co's Collagen C ...