K18

K18 rewrote the rules of bond repair with its patented K18Peptide, a bioengineered molecule that reconnects broken keratin chains from the inside out, no water, no rinse, no bowl required. The flagship Leave-In Molecular Repair Hair Mask is the four-minute treatment that turned the industry, and the Peptide Prep detox shampoo and clarifying wash round out the system for chemically treated, damaged, and overworked hair.

Hair Color USA stocks authentic K18 Leave-In Repair Mask, Peptide Prep shampoo, Damage Shield pH protective shampoo, and the professional chair-side chairside mist at salon pricing, with fast nationwide shipping from Jackson, Michigan. Stylists use K18 under color and after extensions, and retail clients reorder it because the before-and-after is undeniable. Shop the full K18 collection and add the four-minute repair your clients keep asking about.

K18 FAQ

Is K18 a professional salon brand?

K18 is a professional-grade brand carried by licensed salons and stylists. Their product line includes hair color, shampoo and conditioner, treatments. All K18 products sold at Hair Color USA are authentic and sourced directly from authorized distributors.

What types of products does K18 offer?

K18 offers hair color, shampoo and conditioner, treatments formulated for professional salon use. These products are designed to deliver consistent, reliable results for licensed cosmetologists and their clients.

Can I buy K18 products online at Hair Color USA?

Yes. Hair Color USA stocks a full selection of K18 products available for online purchase. Orders ship nationwide with fast processing times. Browse the full K18 collection on this page to find the specific products you need.

How do I choose the right K18 hair color shade?

Start with the client's natural level and desired result. K18 color charts are available from the manufacturer and map each shade number to its tone and lift level. For help selecting the right formula, contact Hair Color USA customer support for guidance.