Want Thick Hair? Nutrafol's Bestselling Serum Is on Sale for Labor Day

Ready to take control of your hair growth journey? Nutrafol's hair serum is under $40 right now ahead of Labor Day, along with the rest of the brand's scalp care collection.BySep 03, 2026 11:00 AMTagsE! Illustration/NutrafolNot sure where to start on your hair growth journey? We just found the best deal from Nutrafol to help you on your way to longer, thicker hair just in time for fall. Nutrafol's bestselling hair serum is currently 25% off, bringing the price down to just $36.75 a bottle. It's microbiome friendly and formulated with proprietary ashwagandha exosomes, with benefits that include: Strengthening the skin barrierVisibly reducing hair breakageDelivering immediate scalp hydrationReducing hair sheddingReplenishing nutrients directly at the scalp Plus, you can round out your haircare routine with the brand's shampoo, conditioner, and mask, which are all on sale as well! Together, they promote a healthy scalp and hair for improved overall quality of your locks. Shop all of Nutrafol's bestselling hair deals, below.Rare DealNutrafol Hair SerumFormulated with ingredients including tea tree, gentle lactic acid, lipids, and peptides, Nutrafol's fast-absorbing serum reduces breakage that starts at the root and supports a healthy scalp microbiome. With consistent use, you'll notice fuller, thicker hair.Nutrafol Scalp MaskMade with AHAs and jojoba esters, this exfoliating scalp mask dissolves build-up. It also visibly improves dryness and removes impurities.Nutrafol ShampooApply a dollop of this balancing shampoo and start massaging! It deeply cleanses thinning hair without overly stripping the scalp, improving volume and strength.Nutrafol ConditionerLightweight but still nourishing, this conditioner replenishes moisture while improving the elasticity of thinning hair.How We ChooseThe E! Insider Shop editors and writers search the internet to find the best products out there. We interview expert sources, comb through customer reviews, and use our own personal experiences to make shopping easier for our readers.As an editorial team, we independently create content and determine coverage based on research, reporting and what we think our readers would like to read about. The goal of our content is to provide a service and inform readers who are on the hunt for the latest products to help make their life better. Items are sold by retailer, not E!. Pricing and availability are accurate as of publish time.