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Living Proof

Triple Bond Complex Leave-in Hair Treatment

4.2 · 836 reviews
from 4,779 ₽

What it is: A weekly leave-in, repair treatment clinically proven to rebuild the structure of hair. This patent-pending technology makes hair 8x stronger*, smoother and shinier after one use. Leave this 450 heat protectant on for 10 minutes before adding your styler and heat for best results. Hair Type: Fine, Medium, and ThickHair Texture: Straight, Wavy, Curly, and CoilyHair Concerns:- Damage/Split Ends/Breakage- Heat Protection- ShineKey Benefits: - Clinically Proven to Reconstruct Hair- Repairs and Protects Against Damage- Stylists Prefer Over Leading Bond-BuilderHighlighted Ingredients:- 3-D Fortifying Technology: Patent-pending tech forms a 3-D network to help rebuild and resist damage.- Encapsulated Cellular Oil: Helps defend hair against thermal and UV damage and color fading.- Biomimetic Emollient Blend: Smooths and aligns hair fibers, resulting in softness and shine.Ingredient Callouts: Free of parabens, formaldehydes, formaldehyde-releasing agents, phthalates, mineral oil, retinyl palmitate, oxybenzone, coal tar, hydroquinone, sulfates SLS & SLES, triclocarban, triclosan, and contains less than one percent synthetic fragrance. It is also cruelty-free and comes in recyclable packaging.What Else You Need to Know: This leave-in formula is good for all hair types and levels of damage. This leave-in formula is clinically shown to rebuild the structure of your hair via a patent-pending technology to prevent breakage, reduce visible signs of split ends, and offer heat protection up to 450°F/232°C.Clean at Sephora is our commitment to offering effective products without certain ingredients, such as parabens, sulfates, phthalates, and mineral oils. Learn more here.

Design: 1.5 oz / 45 mL

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What it is: A weekly leave-in, repair treatment clinically proven to rebuild the structure of hair. This patent-pending technology makes hair 8x stronger*, smoother and shinier after one use. Leave this 450 heat protectant on for 10 minutes before adding your styler and heat for best results. Hair Type: Fine, Medium, and ThickHair Texture: Straight, Wavy, Curly, and CoilyHair Concerns:- Damage/Split Ends/Breakage- Heat Protection- ShineKey Benefits: - Clinically Proven to Reconstruct Hair- Repairs and Protects Against Damage- Stylists Prefer Over Leading Bond-BuilderHighlighted Ingredients:- 3-D Fortifying Technology: Patent-pending tech forms a 3-D network to help rebuild and resist damage.- Encapsulated Cellular Oil: Helps defend hair against thermal and UV damage and color fading.- Biomimetic Emollient Blend: Smooths and aligns hair fibers, resulting in softness and shine.Ingredient Callouts: Free of parabens, formaldehydes, formaldehyde-releasing agents, phthalates, mineral oil, retinyl palmitate, oxybenzone, coal tar, hydroquinone, sulfates SLS & SLES, triclocarban, triclosan, and contains less than one percent synthetic fragrance. It is also cruelty-free and comes in recyclable packaging.What Else You Need to Know: This leave-in formula is good for all hair types and levels of damage. This leave-in formula is clinically shown to rebuild the structure of your hair via a patent-pending technology to prevent breakage, reduce visible signs of split ends, and offer heat protection up to 450°F/232°C.Clean at Sephora is our commitment to offering effective products without certain ingredients, such as parabens, sulfates, phthalates, and mineral oils. Learn more here.

Customer reviews

5.0
verified purchase
Great Results

I have tried K18’s oil and Olaplex #3, and they don’t hold a candle to this product. I have fine, wavy hair that I often dry straight, and the LP Triple Bond product left my hair silky soft and frizz free. One caveat: I applied it to wet hair, not damp hair as I always have better results applying leave ins to wet hair.

4/23/2026
5.0
verified purchase
A product that actually works!

I have now bought several bottles of this product, and I absolutely love it. I can actually feel my hair strengthening, and it helps prevent split ends. My hair is now growing longer and softer, thanks to prevention of breakage.

4/12/2026
5.0
verified purchase
Love it

I could tell an immediate difference after one use. After blow drying, my hair was softer and smoother. I typically have to use a smoothing serum after I blow dry, but if I use this product first, I dont need to add any other product after I blow dry. Has become a weekly staple in my hair routine.

4/12/2026
5.0
verified purchase
A staple in my hair routine

I originally tried this product in a sample size. Loved it and purchased a full size. As long as you don’t use too much it leaves hair feeling healthy and smooth.

2/24/2026
4.0
verified purchase

This triple bond hair mask treatment is truly great. It helps my hair stay shiny and is perfect for use in this harsh winter to keep my hair looking youthful and soft. Would recommend to anyone looking for something like this.

12/26/2025
5.0
verified purchase
Stronger hair without the heaviness

I was really impressed with how quickly my hair started to feel stronger and healthier after using this for a little over two weeks. It never made my hair feel heavy or oily, which I loved. It absorbed well, left my hair soft and smooth, and I noticed less breakage once it became part of my routine. A little went a long way and it layered nicely with my other styling products. I’d definitely recommend it for damaged or bleached hair.

12/25/2025
5.0
verified purchase
Made my hair softer and smoother

My hair is dry and damaged. I used the Living Proof Triple Bond Complex Hair Strengthener. After using this product my hair felt softer and smoother. I was able to style my hair without any worries. A little bit of this product goes along way when you apply it to wet hair. So I’m looking forward to using this product for a while to continue to see further improvement in my hair.

12/24/2025
1.0
verified purchase

Left my hair sticky, weighed down, and tangled. Also smells terribly.

8/29/2026
4.0
verified purchase
Nice but not my favorite for fine hai

I like it but don’t love it. It does leave my hair with a stick residue that can be hard to comb through. That being said- it really does work and helped strengthen my hair when i used it regularly.

8/18/2026
5.0
verified purchase

After using this product, it is safe to say that it works so amazing!! My hair smells and looks so glossy and shiny!! Definitely recommend!!

7/6/2026