repair + protect
Limited-edition mini set repairs + heat protects for less breakage, more bounce
Reverse hair damage in 4 minutes* + prevent heat damage with patented tech that works deep within hair's innermost layers for soft, strong, bouncy results. Featuring molecular designs by Artist Jen Stark.
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what is the K18PEPTIDE™?
Patented biomimetic peptide uniquely matches and clicks into hair's keratin structure, reconnecting damage sites at the molecular level. K18PEPTIDE™ repairs multiple types of bonds and polypeptide chains for strong, soft, smooth, bouncy hair for all.
why do I need to skip conditioner before using the K18 mask?
Conditioner leaves a film that blocks K18PEPTIDE™ from penetrating effectively. Once the 4-minute wait time is up, feel free to use a conditioner, a leave-in, or any type of product.
is HeatBounce activated by heat?
No, HeatBounce does not need to be activated to protect from heat.
Do I have to wait to use heat after applying HeatBounce?
No, you can blow dry or use hot tools immediately after applying HeatBounce.
how is HeatBounce different from traditional heat protectants?
HeatBounce is powered by resilicore™ heat-shielding technology, an innovation inspired by resilin—a natural protein that can withstand extreme temperatures. Unlike traditional heat protectants that only coat the outside cuticle layer of hair, the size + molecular makeup of resilicore™ allows it to penetrate deeper than ever before*, into the cortex where heat damage can occur, forming a protective shield that fortifies from within.
*Heat protection observed on hair in clinical testing after application of HeatBounce and use of 450℉ (232℃) flat iron on dry hair
Repair damage for hair like new* in 4 minutes.
See how K18 unlocks our community's expression
- Hair Texture
- Hair Repair
- Frizz Control
- Shine
- Manageability
- VictoriaReviewingJumbo Leave-In Molecular Repair Hair Mask 100mLI recommend this productRated 5 out of 5 stars4 minutes ago5 Stars
Me gustó mucho
- Nathalia H.Verified BuyerReviewingJumbo Leave-In Molecular Repair Hair Mask 100mLI recommend this productAge 18 - 24Hair Concern Color-care, Split-EndsHair Type Medium Density, Straight/WavyMy Results Less Frizz, Visible Difference, Stronger Hair, Less Breakage, Smoother HairRated 5 out of 5 stars49 minutes agoDefinitely worth purchasing
I’ve bleached my hair and started using this and honestly my hair has never been healthier. I absolutely love this product and the larger size lasts me so long.
- Nathalia H.Verified BuyerReviewingFull-Size Leave-In Molecular Repair Hair Mask 50mLI recommend this productAge 18 - 24Hair Concern Color-care, Split-EndsHair Type Medium Density, Straight/WavyMy Results Less Frizz, Visible Difference, Stronger Hair, Less Breakage, Smoother HairRated 5 out of 5 stars52 minutes agoLove it!!!
This is the perfect product to prey your hair before bleaching and keep it healthy afterwards. I started using this product and despite bleaching my hair it’s healthier than its ever been!
- TammyReviewingFull-Size Leave-In Molecular Repair Hair Mask 50mLI recommend this productRated 5 out of 5 stars6 hours ago5 Stars
small bottle, great peoduct
- Julianna P.Verified BuyerReviewingJumbo Leave-In Molecular Repair Hair Mask 100mLI recommend this productAge 65+Hair Concern Chemical damage, Color-careHair Type Fine/ThinMy Results Less Breakage, Soft Touchable HairRated 5 out of 5 stars9 hours agoLove how management my hair has become!
I've been coloring and highlighting my hair for years. In the last few years the highlights have taken it's toll on my hair and I've been trying leave-in conditioners, hair masks, and overnight treatments to try and repair the damage. Then, I found K18 - what a difference it has made. My tangly hair is tamed by the hair mask and I feel like I'm on the road to restoring life to my hair. THANK YOU, K18!
KK18Hair7 hours agoThank you so much for the love, Julianna! 💙 We're thrilled to hear the Jumbo Leave-In Molecular Repair Hair Mask is helping restore your hair. ✨ We truly appreciate your support!