Tretinoin, also known as all-trans retinoic acid (sold under a variety of brands including Retin-A), can reverse the signs of aging skin, but at what cost?

What Is the Most Important Anti-Aging Cream Ingredient? ([ Ссылка ]). That was the question posed and answered in my previous video. In the next two videos, I look at the benefits of topical niacinamide ([ Ссылка ]) and topical vitamin C ([ Ссылка ]).

For more on how to live your longest, healthiest life, preorder my new book How Not to Age ([ Ссылка ]). (As always, all proceeds I receive from all of my books ([ Ссылка ]) are donated to charity.)

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Thanks for watching. I hope you’ll join in the evidence-based nutrition revolution!
-Michael Greger, MD FACLM

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