Tretinoin, also known as alltrans retinoic acid (sold under a variety of brands including RetinA), can reverse the signs of aging skin, but at what cost?

What Is the Most Important AntiAging Cream Ingredient? (https://nutritionfacts.org/video/what.... That was the question posed and answered in my previous video. In the next two videos, I look at the benefits of topical niacinamide (https://nutritionfacts.org/video/the...) and topical vitamin C (https://nutritionfacts.org/video/the....

For more on how to live your longest, healthiest life, preorder my new book How Not to Age (https://nutritionfacts.org/book/hown.... (As always, all proceeds I receive from all of my books (https://nutritionfacts.org/books/) are donated to charity.)

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

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