1. Dr . Murad has taken alpha-hydroxy acids to a whole new level, 2. But alpha-hydroxy acids needn't replace Retin-A, nor even serve the same purpose. 3. "' 3-Hydroxypropionic acid "'is a carboxylic acid, specifically a beta hydroxy acid . 4. _If you're concerned about wrinkles, find a lotion with alpha hydroxy acids . 5. Alpha-hydroxy acids ( AHAs ) are derived from fruits, plants and sour milk. 6. That's where topical creams called retinoids and alpha-hydroxy acids come in. 7. The substances, along with several others, are alpha-hydroxy acids , or AHA's. 8. "We don't have alpha hydroxy acid products, " said Clinique spokesperson Shannon Cooney. 9. The sales of cosmetics containing alpha hydroxy acids are going strong. 10. Wet the nails and cover them with vaseline or even alpha-hydroxy acid , Baldwin suggested.