Hyaluronic acid is a natural substance found in the body, and the largest amounts of it are found in the skin, connective tissue and eyes, where its main function is to retain water and keep your ...

Imagine for a moment what the human body would be like without skin (we know—ick—but bear with us): All our organs, muscles, and bones would be exposed, completely vulnerable to the ravages of the ...

How to Do a Retinol Sandwich After giving the retinol time to absorb, you finish everything off with a second layer of moisturizer. How to Do a Retinol Sandwich The biggest advantage of using the ...