The 10 Best Summer Hair Repair Products for Sun, Salt and Chlorine Damage

This K18 mask, which doubles as a leave-in treatment, is a favorite of mine and beauty pros alike (and for good reason!). The brand’s key ingredient, K18Peptide, is designed to repair damage caused by bleach, chemical treatments, and heat, so whether your locks are dry, brittle, or simply worse for wear after summer, it can help quickly bring them back to life.

Review: “I had almost given up on my hair. I spent years buying products that promised miracles but delivered disappointment. Then I found K18. This isn’t just another conditioner or mask—it’s molecular hair repair that reaches deeper than anything I’ve ever tried. When nothing else worked, K18 did." —Sephora

This lightweight hair oil from TRESemmé delivers softer, shinier strands with every pump, which is precisely why Ramazon loves it for damaged hair. He recommends working a small amount into the mid-lengths and ends of damp or dry hair to improve strength, smooth flyaways, and restore manageability. “It helps reduce breakage and gives hair that expensive, polished finish without making it feel greasy,” claims Ramazon.

Review: “I’ve been using this hair oil consistently for two weeks, and I can confidently say that my hair has become noticeably shinier, softer, and more hydrated. I’m specifically trying to repair long-term damage caused by frequent heat styling, and I can attest that this oil, when used together with the matching cream from the same line, has worked exceptionally well for my hair.” — Amazon

According to Ramazon, “this lightweight leave-in treatment is like a reset button for damaged hair,” thanks to KRT (Keratin Resistance Therapy) and liquid-crystal amino acids that reinforce hair from the cuticle to the cortex. Pro tip: “Apply it through the mid-lengths and ends before styling for hydration, strength, and heat protection.”

Review: “This leave-in treatment is one of those rare repair products that delivers instant results you can actually feel. The formula is lightweight but powerful, and it absorbs quickly without leaving any residue or heaviness. What stands out most is how noticeably smoother and stronger the hair feels right after using it—almost like a mini in‑salon keratin treatment at home.” — Ulta

Consider this conditioning mask a swim cap for your hair (no rubber required!). Originally developed for the first U.S. Olympic synchronized swimming team, it helps protect strands from the drying effects of chlorine, saltwater, and UV exposure. Meanwhile, hydrolyzed elastin and castor oil work overtime to strengthen locks, reduce breakage, and replenish much-needed moisture.

Review: “This product absolutely revolutionized my holiday hair! I wish I had discovered it years ago. It made my hair look great and prevented my vibrant red color from fading in the sun, chlorine, and salt water. Amazing!” — Amazon

After I noticed my dyed hair looking faded and feeling drier than usual after one too many days in the sun, my hairstylist recommended swapping my usual shampoo for this one from Aveda. Its gentle formula cleanses without stripping my already-fried, bleached strands of much-needed moisture, while helping protect color long-term.

Review: “This shampoo has the best smell of all time. It leaves my hair feeling clean and voluminous! A little goes a long way, so it’s a great value. So far, it’s kept the color consistent in my hair, and the conditioner really does the job with making my hair softer than ever.” — Amazon

According to celebrity stylist Marcos Diaz, one of the biggest summer hair mistakes has nothing to do with your products—it’s how you dry your hair. “Hair is at its most fragile when it’s wet, and rubbing it with a traditional bath towel creates unnecessary friction that leads to breakage,” he explains. This ultra-soft microfiber towel absorbs excess water without roughing up the cuticle, helping minimize damage and frizz before styling even begins.

Review: “It does what it's supposed to do: it prevents frizz and preserves curl definition. There's a huge difference in how my hair looks when I use this as opposed to a regular bath towel.” — Amazon

If your hair is fine like mine, Diaz recommends picking up his go-to pre-wash. “When hair has been exposed to sun, salt water, and chlorine, I like beginning with a pre-wash treatment that replenishes moisture before cleansing.” That’s exactly what you’ll get thanks to strengthening and hydrating ingredients like copper peptides, hydrolyzed silk, niacinamide, and panthenol that don’t weigh down hair, either.

Review: "Just … wow!!! The cooling scalp serum is legitimately cooling. Upon first use of the pre-wash conditioner, I could immediately feel my hair was extremely soft after I washed it off while I was still in the shower!! I felt a difference instantly when wet, and again the next morning after letting my hair dry overnight. I could feel it was already softer. Highly recommend this set!!" — Béssa

As Diaz tells me, “Healthy hair starts before shampooing.” This pre-shampoo treatment targets three types of hair bonds and is packed with amino acids to help repair damage, boost hydration, and protect against future breakage. The result? Softer, shinier, healthier-looking curls.

Review: “I caused quite a bit of damage to my hair recently through a combination of coloring and heat styling. I tried other treatments, without much improvement. I picked this up during a sale, and wow! My hair is noticeably softer and shinier. It's not a replacement for damaging your hair in the first place, but it definitely helped far more than anything else!” — Ulta

Mature hair tends to be more fragile, making protection against everyday damage especially important. One of my favorites is this luxe oil from Kérastase, which helps strengthen strands and prevent split ends while controlling frizz and flyaways. It also delivers instant softness and shine without sacrificing manageability.

Review: “I have been using this product for many years. I have aged during that time. In the beginning, it was wonderful!!! Now I dread to think what my hair would be like without it.” — Sephora

This is one of Ramazon’s favorite weekly treatments for dry hair weakened by coloring, heat, or environmental stress. It works to rebuild all three types of hair bonds while leaving thirsty strands stronger, smoother, and noticeably shinier.

Review: “I used this product for the first time a couple of years ago, and I immediately loved it! I could actually feel a difference in the strength of my hair after about two weeks of use, and I would definitely recommend it to anyone and every hair type!” — Sephora