Derms, what is the one anti-aging skincare ingredient you would recommend? why?

Tretinoin: The one product - and it should only be prescribed by a physician that will make the greatest improvement in your skin is tretinoin. It stimulates all of the cells in your skin in different ways to repair and correct the damage done through time, sun exposure, acne, and a host of other problems. My second choice would be a great sunscreen. Be well.

TNS Serum: I like the skinmedica tns serum as the most important part of skin therapy. It contains growth factors as well as anti-oxidants to encourage collagen generation as well as protect from damage to the skin. I usually recommend a package: combining this product with a tri-retinol and sunscreen moisturizer. That trio is an excellent skin care regimen which gets noticeable results in 90 days or so.