Frequently Asked Questions

Get answers to common questions about K-18 Treatment.

K-18 is a leave-in molecular repair mask that reconnects broken keratin chains inside the hair. Applied after shampooing, it penetrates the cortex to strengthen, hydrate and smooth, reversing damage from heat, bleaching and color services with lasting results.

Anyone with heat-, color-, or chemically-damaged hair benefits, especially clients experiencing breakage, dryness or loss of elasticity. Suitable for all hair textures; your stylist will assess damage level and recommend one or a series of in-salon treatments plus at-home maintenance.

Most K-18 treatments take 15–30 minutes in salon, depending on hair length and severity of damage. The formula is applied to clean, towel-dried hair and processed briefly; add styling time for a complete appointment.

Yes. K-18 is safe with color and chemical services; many stylists apply it between services to prime hair. For best timing, consult your stylist — they may recommend waiting a few minutes or scheduling service sequencing for optimal bond rebuilding and color integrity.

Frequency depends on damage level. For severe damage, a series of three in-salon treatments spaced every 2–4 weeks is common. For maintenance, many clients book one treatment every 4–12 weeks or as your stylist advises.

Yes — K-18 works on both natural and chemically treated hair. It restores structural integrity without altering curl pattern or color, making it ideal for textured, relaxed, bleached, or colored hair when applied by a trained stylist.