Nutrafol’s New Hair Serum Takes on Breakage, Split Ends & Frizz

Nutrafol just launched a $54 serum for stronger, healthier-looking hair and it's targeted to prevent breakage and smooth split ends, frizz, and heat damage.ByOct 06, 2026 7:00 AMTagsE! Illustration/NutrafolIf your hair seems to grow just to break off at the ends, Nutrafol's latest launch has your strands in mind. We already know that healthy hair starts at the scalp, and that Nutrafol can help you grow better, longer, hair. But keeping the hair you've worked so hard to grow strong is another story. Between hot tools, color appointments, brushing, styling, and everyday wear and tear, breakage and split ends can make maintaining long, healthy-looking hair feel like a full-time job. That's where Nutrafol's new Strand Serum comes in. Launching today for $54, the leave-in treatment is the brand's first clinically tested, physician-formulated serum dedicated specifically to strand health. Buy Nutrafol's new Strand Serum It's designed to work from the inside of the hair's cortex to the outer cuticle to strengthen strands, reduce breakage, smooth frizz, and protect against heat up to 450 degrees. According to the brand's testing, it can also reduce split ends by 62% and breakage by up to 83% over time. You'd better grab a bottle while you can. We have a feeling this strand serum is going to fly off the shelves!Nutrafol Strand SerumNutrafol’s new Strand Serum is a leave-in treatment designed to strengthen hair from cortex to cuticle while helping reduce breakage, split ends, and frizz. 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.