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Deal.ai › K18
K18
K18 Pro - Leave-in Molecular Repair Hair Mask - 15ml

K18 Pro - Leave-in Molecular Repair Hair Mask - 15ml

Best price now

$29.00at AmazonChecked 1 h ago

59% under what the other stores charge

Compared across 4 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. As an Amazon Associate, Deal.ai earns from qualifying purchases.

Visit Amazon
K18 discount codes →

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Price facts

  • Lowest price today: $29.00 at Amazon (checked Nov 12, 2026).
  • Checked at 4 stores.

K18 Pro - Leave-in Molecular Repair Hair Mask - 15ml prices at every store

  • TargetNew

    In stock

    $54.49Free shippingChecked 1 h ago
    Visit Target
  • WalmartNew

    In stockSold by Beauty Guarantee

    $70.13Free shippingChecked 1 h ago
    Visit Walmart
  • K18 HairNew

    In stock

    $75.00Free shippingChecked 1 h ago
    Visit K18 Hair
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $29.00Checked 1 h ago
    Visit Amazon

Also available at

  • Salon BrandzCheck price at Salon Brandz

Store links may earn us a commission.

K18 Pro - Leave-in Molecular Repair Hair Mask - 15ml price history

Lowest price we've seen: $29.00 on Nov 13 at Amazon. Tracked across 4 stores since Nov 13.

About the K18 Pro - Leave-in Molecular Repair Hair Mask - 15ml

A leave-in treatment mask for all hair types that clinically reverses damage in 4 minutes.

K18 Leave-In molecular Repair Hair Mask - 15ml

The patented peptide technology works to repair damage from bleach, color, chemical services & heat – restoring strength, softness, smoothness, and bounce to hair.

The K18PEPTIDE™ works at the innermost layer of hair, reconnecting polypeptide chains and disulfide bonds broken during bleaching, chemical services, and through heat damage.

By addressing these damage sites at the innermost layer of hair, core strength and elasticity are renewed for strong, smooth, bouncy hair—even after the most extreme damage done in the salon or at home.

Powered by the patented K18PEPTIDE™, engineered over 10 years in a biotech lab to work on the molecular level to rebuild hair from the inside out in just 4 minutes.

Because the K18PEPTIDE™ works at the molecular level, it works on every single hair type

Clinically proven to reverse hair damage from: Bleach + Color, Chemical Services, Heat

Restores strength, softness, smoothness, and bounce

Immediate + progressive results

Vegan, color-safe, cruelty-free

How To

Shampoo, do not condition.

Towel-dry thoroughly.

Begin with 1 pump of K18 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, maximum dosage is 3 pumps.

Let sit for 4 minutes. Do not rinse out.

Then comb + style as usual (fine to add heat protectant or styling product now).

Use for the first 4-6 washes, then as needed

Questions and answers

Where is the K18 Pro - Leave-in Molecular Repair Hair Mask - 15ml cheapest?
At Amazon, for $29.00, 59% under what the other stores charge, as of our latest check.
Where can I buy the K18 Pro - Leave-in Molecular Repair Hair Mask - 15ml?
5 stores we checked sell it, including Amazon, Target, Walmart, K18 Hair, Salon Brandz.

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  • Stores we've priced the K18 Pro - Leave-in Molecular Repair Hair Mask - 15ml at

    • Target deals and prices
    • Walmart deals and prices

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