Jennifer Aniston's hair has been a topic of conversation since her first appearance on Friends. So much so, in fact, that her character Rachel's signature tresses inspired a haircut trend of the same name. Now, we know one of her real-life secret weapons: Olaplex No. 3 Hair Perfector Repairing Treatment. The Morning Show actress revealed to Marie Claire that she uses the treatment 'once a week,' dubbing it one of her holy grail hair finds. "I use an Olaplex hair mask once a week and I often let my hair air-dry to avoid damage caused by hot styling tools," she said. See it! There's a reason she touts it as one of her faves. The affordable hair treatment - which will save you a salon visit - is packed with ingredients that help reverse hair damage, prevent future damage and restore your texture and appearance so that it looks and feels healthier. Keri Russell Uses This $26 Hair Milk Treatment That Shoppers Call 'Liquid Gold' Olaplex's patented and proven bond-building technology fixes the problem at its root - literally. It rebuilds weak and broken disulfide bonds, and visible results can be seen after just three minutes. So, how exactly should you go about using the product? Start with damp, towel-dried hair and apply a generous amount of the product from your roots down to your ends. Comb through once, leave on for a minimum of 10 minutes and then go about your wash routine. You'll get the best results by pairing the treatment with the No. 4 Bond Maintenance Shampoo and No. 5 Conditioner. You don't have to take my word (or even Jennifer Aniston's) for it, though. The hair mask has over 128,000 glowing reviews. Shoppers called it a "game-changer in the world of hair care" and a "miracle in a bottle," and said that it makes their hair feel "sooo much healthier" and helps "hold styling so much better." See it! Get the Olaplex No. 3 Hair Perfector Repairing Hair Treatment for $30 at Amazon! Please note, prices are accurate as of the publishing date but are subject to change. Looking to round out the rest of your hair care routine? Explore more from Olaplex. Don't forget to check out all of Amazon's Daily Deals for more great finds, too! Jennifer Aniston's Hairstylist Swears This Blowout Brush Never Fails Us Weekly has affiliate partnerships. We receive compensation when you click on a link and make a purchase. Learn more!