K18 Leave-in Molecular Repair Hair Mask 50ml (formally Khairpep)
(2 customer reviews)

$94.50(Incl. GST)

Liked Khairpep? You’ll love K18. This leave-in mask heals and strengthens hair with lightweight moisturizing benefits to detangle and keep hair smooth and soft, without weighing it down. Please see dosage chart for exact usage. For best results, use for the first 4-6 consecutive washes following a service, and then every 3-4 washes as needed to maintain hair strength.

  1. Shampoo, do not condition. Towel dry thoroughly.
  2. Begin with 1 pump of K18 Mask and add more as needed depending on the length, thickness, and condition. Work evenly into hair, one pump at a time, from ends to roots.
  3. Let sit for 4 minutes to activate.
  4. Do NOT rinse out. Style as usual.

Introducing K18 Peptide: I am a powerful and light weight serum that repairs, strengthens and improves the elasticity of the hair, all while adding volume to fine fragile hair. I do not wash out and I actually repair the bonds in the hair by up to 91% that has been damaged by bleaching or colour work.

I am free of parabens, sulfates, silicones, phthalates, sodium chloride, artificial colors, and formaldehyde and formaldehyde donors.


Water (Aqua/Eau), Alcohol Denat., Propylene Glycol, Dicaprylyl Ether, Cetearyl Alcohol, Behentrimonium Chloride, Cetyl Esters, Polysorbate 20, K18Peptide™ (sh-oligopeptide-7, Hydrolyzed Wheat Protein, Hydrolyzed Wheat Starch, Benzyl Alcohol, Fragrance (Parfum)

Additional information


2 reviews for K18 Leave-in Molecular Repair Hair Mask 50ml (formally Khairpep)

  1. Jess

    Ive been a Biba client for a while and I’ve just used this serum for the first time and it’s fantastic. My hair is more grey than not these days so it’s left it super soft and definitely more hydrated than it’s been in ages.
    Definitely recommend!

  2. Em

    This is a great product – my hair is very fine and was damaged from bleaching. After using K18 my hair feels stronger and healthier with less fly-aways. Would definitely recommend!

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