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K18 hair care products including bottles and a box on a pink background
K18 hair care products on a colorful background with text about hair health and volume.
K18 hair mask bottle with product features on a pink background
K18 Astrolift mini bottle with product features on a blue background
Before and after comparison of a woman's hair with a leave-in molecular repair hair mask on a purple background.
AstroLift reparative volume spray showing a before and after comparison of hair volume.
Instructions for using a K18 mask repair treatment on a colorful background
Illustration of hair structure with K18PEPTIDE® labeled on a pink and orange gradient background.
Three women with different hair types and colors standing together with promotional text about K18 haircare.
Healthy Volume Minis
Healthy Volume Minis
tilenew | color:black
4.7
Rated 4.7 out of 5 stars
4,780 Reviews

healthy volume minis

Limited-edition holiday set creates strong, bouncy hair for everyone
COMING SOON

Description

Fix damage + volume loss on all hair types for fuller, healthier hair this season.                          

Leave-In Molecular Repair Hair Mask:
In the shower:
-Shampoo, don‘t condition.

Out of the shower:
-Using a towel, gently dry hair until damp.
-Begin with 3 pumps of K18 mask.
-Only add more as needed, up to 9 pumps. Average use is 6 pumps (this is a highly concentrated formula, so you‘ll need much less than traditional masks.)
-Apply evenly from ends to roots.
-Let sit for four minutes.
-Don‘t rinse out.
-Style as usual after the four minutes is up (fine to add heat protectant or styling product now).
-Use for the first four to six washes, then swap to maintenance mode and use as needed.


AstroLift™ reparative volume spray:

-Shake well.
-Hold bottle 4-6 inches from roots + hair.
-Spray generously throughout.
-Blow dry for added volume.

Can be applied to dry or clean, towel-dried hair, with or without heat styling. Buildable, lightweight spray can be used in between washes to amplify volume.


PRO tip:

To maximize benefits from the reparative K18PEPTIDE™, apply on clean, towel-dried hair and wait 4 minutes.

Bestselling leave-in molecular repair hair mask repairs damage from bleach + color, chemical services, and heat* in 4 minutes for strong, soft, smooth, bouncy hair.

AstroLift™ reparative volume spray reverses bounce-depleting damage for 2 days of touchable volume + bounce*. Lightweight, buildable formula weightlessly lifts all hair types—especially fine, fragile, aging, and breakage-prone hair—without a sticky, crunchy, or weighed-down feel.

*Disclaimers

One use of leave-in molecular repair hair mask delivers:

  • Healthier hair in 4 minutes*
  • Clinically proven damage repair from bleach* + color*, chemical services*, and heat*

One use the AstroLift™ reparative volume spray delivers:

  • 2.5x more all-over volume*
  • Touchable volume + bounce for up to 2 days*
  • Buildable*, lightweight* volume
  • Humidity-resistant* hold that won’t fall flat for up to 2 days*

*Disclaimers

leave-in molecular repair hair mask
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.

AstroLift™ reparative volume spray
Water (Aqua) (Eau), Alcohol Denat., Maltodextrin/VP Copolymer, Propanediol, PVP, Polysorbate 20, Benzyl Alcohol, Ascorbic Acid, Tocopheryl Acetate, sh-Oligopeptide 78 (K18PEPTIDE™), Palmaria Palmata Extract, Arginine, Glycerin, Levulinic Acid, Hydroxyacetophenone, Glyceryl Caprylate, Polyquaternium - 10, Pentylene Glycol, Sodium Citrate, Tetrasodium Glutamate Diacetate, Phenoxyethanol, Ethylhexylglycerin, Potassium Sorbate, Citric Acid, Fragrance (Parfum)

pairs well with
PEPTIDE PREP™ detox shampoo
4.9
Rated 4.9 out of 5 stars
534 Reviews
Color-safe, non-stripping clarifying shampoo with the K18PEPTIDE™
bestseller
AirWash™ dry shampoo
4.6
Rated 4.6 out of 5 stars
533 Reviews
Revolutionary dry shampoo for a fresh hair + scalp—even after your toughest workout

Description

Fix damage + volume loss on all hair types for fuller, healthier hair this season.                          

got questions?
Get started here
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.
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.
Think of the mask as a damage repair treatment, and AstroLift™ as a volumizer with additional repair benefits. Using both K18 mask + AstroLift™ in your routine will deliver maximum strength for strong, bouncy hair that lasts.
No, you do not need heat to activate AstroLift™. If you want additional volume, blow dry hair after application.
Yes, AstroLift™ is effective on dry hair too. Apply on freshly dried hair, and between washes to repair + amplify volume.
Yes, for best repair results, wait 4 minutes after applying AstroLift™ before applying other styling products.
see it in action

powered by K18PEPTIDE™

Biomimetic peptide clicks into hair’s keratin structure—the source of core strength—for soft, shiny, bouncy results that won’t wash away.

learn more on the blog
4.7
Rated 4.7 out of 5 stars
Based on 4,780 reviews
4,780 reviews
  • Hailey B.
    Verified Buyer
    Reviewing
    Full-Size Leave-In Molecular Repair Hair Mask 50mL
    I recommend this product
    Age 25 - 34
    Hair Concern Heat damage, Color-care, Split-Ends, Dryness
    Hair Type Medium Density
    My Results Smoother Hair, Soft Touchable Hair, Shinier Hair, Less Breakage, Visible Difference
    Rated 5 out of 5 stars
    4 days ago
    I love this stuff!

    I have been using this for years and will forever keep using it. I recommend to everyone!

  • Denise B.
    Verified Buyer
    Reviewing
    Full-Size Leave-In Molecular Repair Hair Mask 50mL
    I recommend this product
    Age 55 - 64
    Hair Concern Chemical damage, Frizz, Dryness, Extending time between washes
    Hair Type Grey Hair, Straight/Wavy, Medium Density
    My Results Less Frizz, Visible Difference, Stronger Hair, Smoother Hair, Shinier Hair
    Rated 5 out of 5 stars
    1 month ago
    Magic in a bottle

    This product has transformed my hair!

    Why did it take me 60 years to discover it??

    K Profile picture for K18Hair
    K18Hair
    1 month ago

    Thank you so much for this amazing review, Denise! Your hair is beautiful! We love that you're experiencing the magic and appreciate you taking the time to share your wonderful experience!

  • Tiara N.
    Verified Buyer
    Reviewing
    AstroLift™ reparative volume spray 4oz
    I recommend this product
    Age 35 - 44
    Client Hair Concerns Frizz, Chemical Damage, Color Care, Fragile/Brittle Hair, Dryness
    Client Hair Types Medium Density, Fine/Thin, Thick/Coarse, Grey Hair
    Client Results Shinier Hair, Soft Touchable Hair, Bouncy Hair, Visible Difference, Less Breakage
    Rated 5 out of 5 stars
    1 month ago
    Like it

    I really like this volume spray. Smell nice too

    K Profile picture for K18Hair
    K18Hair
    1 month ago

    So happy to hear you're loving AstroLift and enjoying the scent too, Tiara! Thanks for the wonderful 5-star review!

  • Nakeesha H.
    Verified Buyer
    Reviewing
    AstroLift™ reparative volume spray 4oz
    I recommend this product
    Age 65+
    Hair Concern Dryness
    Hair Type Medium Density, Grey Hair
    My Results Soft Touchable Hair, Bouncy Hair
    Rated 5 out of 5 stars
    2 months ago
    Love this spray

    Holds softly but well. Increases volume and helps with fullness.

    K Profile picture for K18Hair
    K18Hair
    2 months ago

    Thank you so much for the kind words! We’re beyond happy that our product helped give your hair the volume and fullness it needed.

  • Niav H.
    Verified Buyer
    Reviewing
    Full-Size Leave-In Molecular Repair Hair Mask 50mL
    I recommend this product
    Age 35 - 44
    Hair Concern Extending time between washes, Fragile/brittle hair, Color-care
    Hair Type Fine/Thin, Straight/Wavy
    My Results Soft Touchable Hair, Cleaner, fresher hair, Bouncy Hair, Visible Difference, Oil absorbed
    Rated 5 out of 5 stars
    2 months ago
    Love this product

    I have been loving using this product. It works as advertised. 4 pumps after shampooing only. My hair is in better shape after several weeks of using

    K Profile picture for K18Hair
    K18Hair
    2 months ago

    We’re so happy K18 is bringing your hair back to life, thank you for trusting us with your strands!

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