How to use k18 First application Use a clarifying shampoo like k18 peptide prep to remove any build up from your hair. Shampoo twice. Skip conditioner, towel dry. Apply 1-3 pumps of k18 leave in mask to your damp hair. Allow it to sit for 4 minutes to activate. After the 4 minutes you can style as usual, or use conditioner, or leave in conditioner if your hair needs more detangling. You can then heat style or air dry how you’d like. Repeat this process for your next 5 washes. If you wash once a