1.0
verified purchase
Avoid at all cost
Mmm what? $45 CAD for something that does not dispense properly? Jail!!!!!
7/15/2026
What it is: A leave-in treatment for all hair types that clinically targets damage, rebuilds bonds, and seals split ends for stronger-, healthier-looking strands.Hair Texture: Straight, Wavy, Curly, and CoilyHair Type: Fine, Medium, and ThickHair Concerns:- Damage, Split Ends, and Breakage- Dryness- FrizzKey Benefits: - Plant-based bond technology targets damage to rebuild broken bonds and support hair repair from the inside out- Weightlessly hydrating leave-in treatment smooths, adds shine, and strengthens to prevent future damage- Silicone-free leave-in mask cares for split ends, conditions, and detangles hair for silky-smooth, frizz-free hairHighlighted Ingredients:- Natural Bond Builder+ Technology: Supports the key structural protein of the hair from the inside out.- Polycare® Split Therapy Technology: Targets split ends.- Hydrolysed Wheat Protein: Visibly strengthens and adds moisture back to hair.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 vegan and cruelty-free.What Else You Need to Know: Damaged hair from heat, color, and chemicals? Rapid Repair Leave-In Mask is designed to support hair repair, care for split ends, and address breakage. Natural bond technology rebuilds and protects hair with Polycare® Split Therapy Technology to target split ends and restore strength, elasticity, softness, and shine.Fragrance Description: Light pomegranate, like a fruity, refreshing cocktail on a first dateClinical Results: Based on an in-vitro study using BondBuilder Shampoo, Leave-In Mask, and Finishing Oil:- Reverses 85% of 1 year’s worth of damage after 1 useBased on microscopic image analysis using Bond Builder Shampoo, Leave-In Mask, and Finishing Oil:- Clinically proven to improve split ends by 98% after 1 useClean at Sephora is our commitment to offering effective products without certain ingredients, such as parabens, sulfates, phthalates, and mineral oils. Learn more here.
International delivery
Shipping calculated at checkout
Returns & exchanges
Within 30 days of delivery
What it is: A leave-in treatment for all hair types that clinically targets damage, rebuilds bonds, and seals split ends for stronger-, healthier-looking strands.Hair Texture: Straight, Wavy, Curly, and CoilyHair Type: Fine, Medium, and ThickHair Concerns:- Damage, Split Ends, and Breakage- Dryness- FrizzKey Benefits: - Plant-based bond technology targets damage to rebuild broken bonds and support hair repair from the inside out- Weightlessly hydrating leave-in treatment smooths, adds shine, and strengthens to prevent future damage- Silicone-free leave-in mask cares for split ends, conditions, and detangles hair for silky-smooth, frizz-free hairHighlighted Ingredients:- Natural Bond Builder+ Technology: Supports the key structural protein of the hair from the inside out.- Polycare® Split Therapy Technology: Targets split ends.- Hydrolysed Wheat Protein: Visibly strengthens and adds moisture back to hair.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 vegan and cruelty-free.What Else You Need to Know: Damaged hair from heat, color, and chemicals? Rapid Repair Leave-In Mask is designed to support hair repair, care for split ends, and address breakage. Natural bond technology rebuilds and protects hair with Polycare® Split Therapy Technology to target split ends and restore strength, elasticity, softness, and shine.Fragrance Description: Light pomegranate, like a fruity, refreshing cocktail on a first dateClinical Results: Based on an in-vitro study using BondBuilder Shampoo, Leave-In Mask, and Finishing Oil:- Reverses 85% of 1 year’s worth of damage after 1 useBased on microscopic image analysis using Bond Builder Shampoo, Leave-In Mask, and Finishing Oil:- Clinically proven to improve split ends by 98% after 1 useClean at Sephora is our commitment to offering effective products without certain ingredients, such as parabens, sulfates, phthalates, and mineral oils. Learn more here.
- SKU
- 2-P513096
- Brand
- BondiBoost
- Category
- beauty / hair-care / leave-in-conditioners-detanglers
- Variants
- 1
Customer reviews
1.0
verified purchase
Threw away
Horrible quality. Makes hair dry, greasy, smells bad. Consistency is watery
3/30/2026
5.0
verified purchase
new favorite product~
I am in love with the BondiBoost Bond Builder+ Leave-In Hair Mask. It makes my hair feel so soft and smooth without feeling heavy or greasy. My ends look healthier and it definitely helps with frizz. I also like that a little goes a long way. I highly recommend :)
3/8/2026
5.0
verified purchase
A Game-Changer for Fine, Straight Hair!
I normally use another brand's leave in conditioners. Then I had an opportunity to try the Rapid Repair Bond Builder+ Leave-In Mask and I think I'm changing products! I noticed a difference right away. I often don't have time to blow dry my hair and needed a leave in conditioner that I can use if I air dry or blow dry. My hair is fine and straight. It acts like it wants to curl but it doesn't. This product makes my hair shiny, soft and I have volume! And, after putting my hair up in a bun, when I take it down I actually have waves and/or curls (depending on how long my hair was up). This is definitely going to replace my other leave in conditioners.
2/27/2026
5.0
verified purchase
I love it and I will buy it again
Delighted with this product, look, I'm an old lady and the truth is that I was surprised because my hair is brittle and the truth is that I was surprised
2/26/2026
5.0
verified purchase
The Bondi Boost Rapid Repair Bond Builder + Leave In treatment has been such a nice addition to my routine. I use this 1-2 times a week after washing my hair but not conditioning. This treatment is meant to help strengthen and bond. I am really impressed at the difference this has made in my split ends! It also smells fantastic. My hair is so much more manageable, soft and smooth when I use this.
2/25/2026
5.0
verified purchase
For healthy and strong hair
Absolutely love this product makes my hair feel so soft and strong!
2/17/2026
5.0
verified purchase
Love it!
I love this leave in treatment! It left my hair feeling soft and more manageable. I feel like it looks better too, stronger & healthier looking. It restores & rebuilds broken bonds , split ends, & strengthens each strand. To use: shampoo hair, towel dry hair, then use as you would a conditioner. Do not wash out. Concentrate on ends and move up. Leave on 4 minutes, then style.
2/17/2026
5.0
verified purchase
LOVE IT!
I love this product. It is making a huge difference in how my hair feels and the shine. Will definitely keep on hand.
2/12/2026
5.0
verified purchase
A must have!!
This product made my hair feel stronger and healthier after just one use!! It left my ends incredibly soft. If you have long hair and want to maintain softness and repair damage, you NEED this!!
2/11/2026
