Full-Size Leave-InMolecular Repair HairMask 50mL
Full-Size Leave-InMolecular Repair HairMask 50mL
BUNDLE & SAVE
Couldn't load pickup availability
Clinically proven to reverse damage in just 4 minutes, this leave-in molecular repair mask uses K18PEPTIDE™ to restore strength, softness, and elasticity. Apply to towel-dried hair, wait 4 minutes (do not rinse), then style as usual. Perfect for color-treated, bleached, or heat-damaged hair. A premium investment for transformative results.
ingredients
ingredients
Water (Aqua) (Eau), Alcohol Denat., Propylene Glycol, Cetearyl Alcohol, Dicaprylyl Ether, Cetyl Esters, Behentrimonium Chloride, Polysorbate 20, sh- Oligopeptide-78, Hydrolyzed Wheat Protein, Hydrolyzed Wheat Starch, Isopropyl Alcohol, Tocopherol, Phenoxyethanol, Potassium Sorbate, Citric Acid, Fragrance (Parfum), Geraniol, Linalool, Hexyl Cinnamal, Benzyl Alcohol, Amyl Salicylate, Benzaldehyde.
dos and don'ts
dos and don'ts
- DO clarify before K18 if you’re a heavy product user (demineralize for mineral + metal buildup).
- DO apply on clean, damp hair.
- DO wait the full 4 minutes before combing or styling.
- DO add whatever styling products you love after the 4 minutes.
- DO use for 4-6 shampoos consecutively for progressive results.
- DON'T use conditioner before applying K18 Mask (you can apply after the 4 min but most find they don’t need it).
- DON'T overdo it—less is more.
- DON'T rinse it out.
key benefits
key benefits
Takes damage repair further – reconnects both polypeptide chains (and as a result, also reconnects disulfide bonds) for strength along the length + width of the hair - offering comprehensive, lasting damage repair.
Restores hair from even extreme damage - by working at the innermost layer of the hair, core strength and elasticity are renewed for strong, smooth, bouncy hair.
Delivers immediate and lasting results – hair is repaired from the first use and lasts past your next wash, for ongoing reparative benefits.
Simplified repair - convenient, leave-in formula works in just 4 minutes, with no extra rinse required.
Works on all hair types – because K18PEPTIDE™ works on a molecular level (where all hair is the same), this product is effective on all hair types.
more to know
more to know
- K18PEPTIDE™ is a biotech-developed peptide that mimics hair's structure to reverse damage by reconnecting polypeptide chains and disulfide bonds broken during bleaching, color and chemical services + heat*.
pH-optimized (5.0-6.0) to help minimize cuticle swelling + put hair proteins in their most resilient state.
Cream format enables easy, lightweight application across all hair types, with detangling and softening benefits.
Vegan, color-safe, cruelty-free.
how to use
how to use
1. Shampoo, do not condition. Towel-dry thoroughly.
2. Apply 1-3 pumps ofK18 leave-in molecular repair hair maskbased on your length and density, starting at the ends and working up towards the roots.
3. Let sit for 4 minutes. Do not rinse out.
4. Comb, add product + style as usual. Use for 4-6 washes post-salon service, then as needed
soft, strongfor everyonebouncy hair¥
-
BeforeAfter- Anastasiia T.
"It makes my hair so soft andweightless, Iabsolutely love it...Makes my hair feel so luxurious,it'slike l just left the salon. Can'trecommend this
product more!" -
BeforeAfter-Arnell M
"My hair has been a mess for years.. My new hairstylist recommendedK18! ... My hair looks andfeelsamazing with lasting results!!"
-
BeforeAfter- Siria A.
"I have heat damaged color treatedcurly hair and this has improved myhair health immensely...This is one of those products that hasincorporated itselfinto my routinefor the rest of my life..."
Repair damage for hair like new* in 4 minutes.
-
BeforeAfter- Christina Marie P.
"I absolutely love this product!! Youhave to see it to believe it!"
-
BeforeAfter- Ashley P.
"...I had my hair chopped (it wasbegging for it) along with somehighlights and coloring of the roots.My hair stylist used this on my hairand I absolutely loved how it mademy hair feel ... I love this mask somuch!"
-
BeforeAfter- Sandra M.
"Amazing the way it feels and theshine provides to the hair instantly."
-
BeforeAfter- Olga S.
"l've been using this mask for aboutfour washes so far. I feel that my hairis getting healthier."
our story
Our story began with a decade of complex research into the bioscience of hair,resulting in our patented molecular repair peptide. Through this research and theapplication of synthetic biology, we are able to do more with less, simplifyingformulations and routines to support hair health and expression at home and inthe salon.
odorBIND™
odorBIND™ revolutionizes what's possible when targeting and eliminating odors.Using biotechnology and synthetic biology, K18 bioscientists utilized DNAdatabases to find and mimic the strongest olfactory systems (our sense of smel)found in nature. odorBIND™ harnesses that understanding of nature and biologyto uniquely recognize, trap, and eliminate malodors, rendering them undetectableand releasing a subtle fragrance in their place. This smart-release molecule isvegan, cruelty-free, and certified Kosher and Halal. Find it in AirWash™, thereinvention of dry shampoo.
odorBIND™
odorBIND™ revolutionizes what's possible when targeting andeliminating odors.Using biotechnology and synthetic biology, K18bioscientists utilized DNAdatabases to find and mimic thestrongest olfactory systems (our sense of smell)found in nature.odorBINDTM harnesses that understanding of nature andbiologyto uniquely recognize, trap, and eliminate malodors,rendering them undetectableand releasing a subtle fragrance intheir place. This smart-release molecule isvegan, cruelty-free,and certified Kosher and Halal. Find it in AirWashTM,thereinvention of dry shampoo.
resilicore™
Patented resilicore T heat-shielding technology protects fromheat deeper thanever before*. Unlike traditional heatprotectants that only coat hair's cuticle, thesize + molecularmakeup of resilicore™allows it to penetrate into hair's coretodefend against heat from the cuticle to the cortex* -as deepas heat damagegoes. Inspired by proteins in nature that canwithstand extreme temperatures, thisprotective shield fortifieshair from within for maximum protection against colorfade, dryfeeling, dullness, and breakage. This heat-shielding tech isinspired bynature, and recreated in the lab to be vegan,sustainable + and cruelty-free. Find itin HeatBounce, the futureof heat protection.
triple-actiontechnology
TripleBright is powered by K18 triple-action technology: ionic detox, precisionviolet technology, and a biopolymer.
onic detox removes brass-causing metals + minerals. It removes up to 3 monthsof brass from hard water minerals and metals in 1 wash*.Precision violet technology neutralizes existing brassiness without staining orovertoning.
Biopolymer defends against future brass by helping prevent the reattachment ofmetals and minerals in future washes. Find it in TripleBright, the future of blondecare.
GET STARTED HERE.
got questions?
how does the k18 mask work?
how does the k18 mask work?
powered by our biomimetic K18PEPTIDETMto seamlessly fit in and
reconnecThe K18 mask works as a treatment to reverse damage in 4
minutes. It'sbonds are also reconnected for reinforced strength along the
length + wicth of hair -offering comprehensive, Iasting, and progressive
repair.
broken polypeptide chains at the molecular level. As a result, disulfide
what is the k18peptide™?
what is the k18peptide™?
broken during damage from bleach + color, chemical services, and heat*to reverse damage by reconnecting polypeptide chains and disulfide bondsK18PEPTIDE™ is a biotech-developed peptide that mimics hair's structur
why skip conditioner?
why skip conditioner?
Conditioner leaves a film that blocks our peptide 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.
i noticed there's alcohol in the formula, isn't that bad for you?
i noticed there's alcohol in the formula, isn't that bad for you?
We like to keep our formulas minimal, only using the exact amount of ingredients needed to get the peptide where it needs to go. Here the alcohol serves as an agent to optimize the hair environment for the K18 mask to work on a deeper level. Our unique blend of 3 alcohols functions to open the hair cuticle so theK18PEPTIDE™can penetrate the innermost layer of hair, reaching the broken polypeptide chains (keratin chains).
when should i expect to see results?
when should i expect to see results?
Most see results after 2-3 uses. The more damaged the hair, the more dramatic the results so it may vary depending on your hair type and level of damage.