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Nexxus KERAPHIX Liquid Crystallizer Reconstructive Leave-In Treatment
Summary
Nexxus' KERAPHIX Liquid Crystallizer Reconstructive Leave-In Treatment is part of proteomic damage regimen powered by KRT Keratin Resistance Therapy, with liquid crystal amino acids, reconstructs bonds from cuticle to cortex for strong, fluid soft, damage-resistant hair.
Benefits
- 34X STRONGER + MORE RESISTANT TO HAIR BREAKAGE*: Repair and resist visible damage from coloring, bleaching, highlighting, styling, heat and more. *System vs. non-conditioning shampoo
- 19.3% KRT TECHNOLOGY: This treatment for damaged hair, with Keratin Resistance Therapy and liquid crystal amino acid, reconstructs bonds from cuticle to cortex for strong, soft, damage-resistant hair
- BOND REPAIR HAIR CARE SYSTEM: Restores and helps with hair strengthening from cuticle to cortex using crystal technology providing deep penetration for lasting resilience
- INSTANT RESULTS + DAMAGE SHIELD SYSTEM WITH THIS HAIR BREAKAGE TREATMENT: Softer, smooth hair in one use with heat protection up to 450° and future damage defense
- WEIGHTLESS MOISTURE + EASY STYLING: Provides long-lasting hydration without heaviness, while detangling and enhancing manageability for effortless styling
- CONSUMER-VALIDATED*: 100% of consumers agree: This regimen made hair smooth *Based on a consumer panel study on 7/29/25 using Nexxus KERAPHIX Shampoo, Conditioner + Liquid Crystallizer treatment
Item 2650036
Apply on clean, damp or dry hair, focusing on mid-lengths to ends. Start with two pumps and apply more as needed to evenly distribute. Do not rinse.
Water (Aqua), Dimethicone, Glycerin, Propylene Glycol, Serine, Phenyl Trimethicone, Polyacrylamide, Sodium Gluconate, Citric Acid, Phenoxyethanol, C13-14 Isoalkane, Fragrance (Parfum), Peg-8 Methicone, Dimethiconol, Cetrimonium Chloride, Laureth-7, Disodium Edta, Iodopropynyl Butylcarbamate, Alpha-Isomethyl Ionone, Citronellol, Hexyl Cinnamal, Limonene, Linalool
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Questions
Reviews
Review Snapshot
by PowerReviews
Ratings Distribution
Hair Type
Most Helpful Positive Review
Next Level Leave In - Salon Softness Achieved
Let me start by saying this leave in treatment is absolutely phenomenal and that is not something I say lightly. I have long, thick platinum blonde hair that I take exceptionally good care of, but it can still feel dry at times, especially when the weather changes. This treatment completely transfor...
Most Helpful Critical Review
Not for me
I really wanted to like this product a lot more than I did but I feel a little in different about it. Some of the time that I used it, it made my hair really soft afterwards and other times it left it feeling a lot more dry. I'm not sure if it's just not for my hair type in which I have both oily an...
447 results
Absolute game changer
Hair Type Straight Hair
The Nexxus Keraphix Liquid Crystallizer Reconstructive Leave-in Treatment has quickly become my favorite hair product. My hair is relaxed and it makes my hair feel so soft and smooth. The formula is lightweight and a little goes a long way. It has an amazing smell as if I got my hair done at a salon. I noticed my hair has much less breakage after every use, I use this product every other wash day. I will definitely keep this product as part of my hair routine. Absolutely recommend! I received this product for free from Topbox Marketing for testing and review purposes.

This product is great for dry frizzy hair
Hair Type Wavy Hair
My hair is course and very frizz prone. I am constantly trying new products and not many of them work for me but this product actually did. It made my hair very soft and did a very good job at taking the frizz. I received this product for free from Topbox Marketing for testing and review purposes.
Healthy hair goals
Hair Type Wavy Hair
I've been using this leave in treatment for a few weeks now and it leaves my hair super soft, shiny, and frizz free. The cream is easy to apply through hair before blow drying and it has a light scent and doesn't leave my hair greasy feeling. I am honestly in awe of how healthy my hair looks after using it, so I will definitely be purchasing again. I received this product for free from Topbox Marketing for testing and review purposes.
Game changer
Ive dealt with severe damage from a salon over the past several months. Ive tried everything from castor oil to K18. Nothing helped my hair in the way this did from the first use. The forat time i used ig i didnt heat style my wavy/curly hair. Iykyk curly hair is already dry and once its damaged, the curl pattern leaves and frizz is what youre left with. I was shocked at how beautifully my hair curled up, and how moisturized it felt. The bect time i used it the same way but then blew my hair out, it felt like i had this invisible, very light weight coat of protection. It also made my hair so smooth and by yhr 3rd use, on dry hair, i could see a boticible difference in my hair even without the product. There were super clear instructions on the package or bottle and being a protein product, and in the beauty industry, i wanted to space the uses out over the course of a month. I am very excited to continue to see the results and positive impact on my hair. I also will, after an 8 month break, have highlights put in again, i feel armed wh a secre weapon with this product and way less nervous to have bleach put on my hair again. I received this product for free from Nexxus for teating and reveiw purposes.
Less Fallout, More Softness: My Nexxus Keraphix Review
I've been using the Nexxus Keraphix Repair Liquid Crystallizer Reconstructive Leave-In Treatment for about a month now, applying it after every hair wash, and I've honestly noticed a difference. The first thing I noticed was how much softer and smoother my hair feels—especially on my ends, which usually feel dry and fragile. Over time, I've also seen less hair fallout, which tells me my hair feels stronger and more resilient overall. This makes sense since the Keraphix line is formulated with protein and keratin-building technology designed to help repair damaged hair from the inside out and reduce breakage. My hair feels more manageable, looks healthier, and doesn't feel weighed down or greasy after applying. I love that it works as a leave-in treatment without needing extra steps, and it layers well with my other styling products. If you're dealing with damage from heat styling, coloring, or general breakage, this is a great option to help restore softness, strength, and shine over time. I received this product for free from Topbox Marketing for testing and review purposes.