Will the K18 mask weigh my hair down?

Nope! Since our K18PEPTIDE™  works at the molecular level in the innermost layer of your hair, product won't be left sitting on top like traditional styling products. If your hair feels weighed down, try clarifying buildup first and using less of the highly concentrated mask—the maximum recommendation is 3ml (3 pumps of the 50ml mask, 9 pumps of the 15ml mask).