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K18 Biomimetic HairScience Professional Molecular Repair Mask (Leave-in treatment mask)
K18 Biomimetic HairScience Professional Molecular Repair Mask (Leave-in treatment mask)
K18 Biomimetic HairScience Professional Molecular Repair Mask (Leave-in treatment mask)
K18 Biomimetic HairScience Professional Molecular Repair Mask (Leave-in treatment mask)
K18 Biomimetic HairScience Professional Molecular Repair Mask (Leave-in treatment mask)
K18 Biomimetic HairScience Professional Molecular Repair Mask (Leave-in treatment mask)
K18 Biomimetic HairScience Professional Molecular Repair Mask (Leave-in treatment mask)
K18 Biomimetic HairScience Professional Molecular Repair Mask (Leave-in treatment mask)
K18 Biomimetic HairScience Professional Molecular Repair Mask (Leave-in treatment mask)
K18 Biomimetic HairScience Professional Molecular Repair Mask (Leave-in treatment mask)
K18 Biomimetic HairScience Professional Molecular Repair Mask (Leave-in treatment mask)
K18 Biomimetic HairScience Professional Molecular Repair Mask (Leave-in treatment mask)

K18 Biomimetic HairScience Professional Molecular Repair Mask (Leave-in treatment mask)

$26.10
$29.00

Characteristics

Country of origin USA
Purpose Works at a molecular level to reconnect and rebuild broken keratin chains, addresses damage from chemical services, heat styling, and environmental stressors
Hair type All hair types
Active ingredients Patented K18Peptide™, Glycerin, Propylene Glycol, Isopropyl Myristate, Hydrolyzed Wheat Protein

Description

Leave-in treatment mask by K18 Biomimetic HairScience (Professional Molecular Repair Mask), 0.5 fl. oz. / 1.7 fl. oz. / 5 fl. oz. 

K18 Biomimetic HairScience Professional Molecular Repair Mask is an advanced hair treatment designed to repair and restore hair from the inside out. Utilizing K18’s patented K18Peptide™ technology, this mask works at a molecular level to reconnect and rebuild broken keratin chains, resulting in stronger, healthier hair. Ideal for all hair types, it addresses damage from chemical services, heat styling, and environmental stressors. This leave-in treatment delivers lasting results, improving hair elasticity, strength, and overall health. Clinically proven to reverse damage in just 4 minutes, it offers a revolutionary approach to hair repair.

Patented K18Peptide™: Reconnects broken keratin chains to repair and strengthen hair at a molecular level.
Glycerin: Provides deep hydration and helps maintain moisture balance.
Propylene Glycol: Enhances the penetration of active ingredients for more effective repair.
Isopropyl Myristate: Improves the texture and feel of hair, making it smooth and manageable.
Hydrolyzed Wheat Protein: Adds strength and elasticity to the hair, reducing breakage.

For at home use / or salon use without a chemical service:
1. Shampoo, do not condition.
2. Towel-dry thoroughly.
• 15ml size mask = Begin with 3 pumps of K18 leave-in molecular repair hair mask, only add more as needed depending on length, thickness, and condition. Apply all over, one pump at a time, maximum dosage is 9 pumps.
• 50 + 150ml size mask = Begin with 1 pump of K18 leave-in molecular repair hair mask, only add more as needed depending on length, thickness, and condition. Apply all over, one pump at a time, maximum dosage is 3 pumps.
3. Let sit for 4 minutes. Do not rinse out.
4. Then comb, add product + style as usual.
5. Use for the first 4-6 washes, then as needed.

How to use with a chemical service:
1. Prior to your service, mist hair with water (do not saturate).
2. Section dry hair into 4 quadrants.
3. Apply K18 PRO mist per quadrant based on length and density.
4. Let sit for 4 minutes. Do not rinse out.
5. Dry hair if needed, then perform desired chemical service.
6. Shampoo, do not condition.
7. Towel-dry thoroughly.
8. Apply K18 PRO mask and add more as needed depending on length, thickness, and condition. Work evenly into hair from ends to roots, one pump at a time.
9. Let sit for 4 minutes to activate. Do not rinse out.
10. Then comb, add product + style as usual.

Water (Aqua) (Eau), Alcohol Denat., Propylene Glycol, Cetearyl Alcohol, Dicaprylyl Ether, Cetyl Esters, Behentrimonium Chloride, Polysorbate 20,sh-Oligopeptide-78 (K18Peptide™), Hydrolyzed Wheat Protein, Hydrolyzed Wheat Starch, Isopropyl Alcohol, Tocopherol, Phenoxyethanol, Potassium Sorbate, Citric Acid, Fragrance (Parfum), Geraniol, Linalool, Hexyl Cinnamal, Benzyl Alcohol

$26.10
$29.00

Overall rating: 5.0 / 5 from 11 reviews.

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Reviews

A miracle in a pump — science meets silky hair

"I was shocked after just one use — my damaged, dull hair felt like virgin strands again! This leave-in mask doesn’t coat the hair, it actually repairs it from the inside out. No rinse, no fuss — just 4 minutes and my hair is smoother, stronger, and shinier than ever."

Avery (5/5)

Instant repair

"This leave-in mask transformed my hair! It feels stronger, smoother, and much healthier after just one use."

Zoie (5/5)

My hair feels reborn after every use!

"This mask is seriously next-level. After just one treatment, my hair felt stronger, smoother, and so much healthier. It’s lightweight but super nourishing."

Adalyn (5/5)

Repair you can actually feel

"This mask is a game changer—my hair felt stronger and looked healthier after just one use. It’s lightweight, not greasy, and really helps with damage and breakage."

Sophie (5/5)

Game-Changer for Damaged Hair

"My strands feel stronger, smoother, and more resilient. The key is using a small amount—just a dime-sized amount on towel-dried hair—and allowing it to activate for four minutes before styling"

Madelyn (5/5)

Next-level repair you can feel after one use

"What makes it truly special? It repairs damage on a molecular level — not just the surface. Worth every drop!"

Evie (5/5)

Best hair mask ever!

"hair was damaged from coloring and heat styling, but this mask has transformed it. It strengthens and smooths my hair without weighing it down. The results are noticeable after just a few uses."

Chanel (5/5)

Works so well!

"Mask and it’s amazing! My hair felt softer, stronger, and healthier after just one use. It’s lightweight, easy to apply, and doesn’t weigh my hair down. The store was great too — fast shipping, well-packaged, and they even included some lovely gifts! Such a nice touch. Highly recommend both the product and the service!"

Kate (5/5)

Restores my hair’s strength and shine

"After using it, my hair feels stronger, looks shinier, and has improved elasticity. It’s easy to use—just apply to damp hair, leave it in, and style as usual."

Chloe (5/5)

Wow miracle mask

"It’s a leave-in treatment, so my hair feels deeply nourished without any heavy buildup. It works wonders on my damaged hair, leaving it softer, smoother, and noticeably stronger after just one use."

Hazel (5/5)

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