K18 is designed to be used consecutively for 6 washes and then every 3-4 washes to maintain your healthiest hair possible. Wait 4 minutes after chelating**, then rinse and shampoo with K18 PEPTIDE PREP™ detox shampoo. Do not condition. Spray K18 Mist section by section onto hair prior to chemical service, then wait four minutes before proceeding with the service. In chemistry, the term “alcohol” is used to describe a broad range of organic compounds. Although the ingredients have “alcohol” in the name, they all behave differently and serve different functions in a formula. Many of them are very different in appearance and function from Denatured or Isopropyl (rubbing) alcohol.

It's worth noting that the brand recommends working it into the hair from the ends to the roots, however I did actually avoid the roots at first as I was worried about them looking (and feeling) greasy. K18’s primary goal is to restore your hairs strength and elasticity by repairing the keratin chains damaged from bleaching, coloring and thermal heat. If cutting, you may start right away. If toning, use K18 Mask then apply toner over K18 Mask. Process as usual. Rinse/shampoo toner, reapply K18 Mask as per instructions above.Towel dry hair, then apply 1-3 pumps of K18 professional molecular repair hair mask based on your client’s length and density, starting at the ends and working up towards the roots. Krupa Koestline, a cosmetic biochemist who has worked with brands that strive to create naturally derived products. She is based in Orlando, Florida. Although K18Hair is free of sulfates, parabens, phthalates, silicones, artificial colors, sodium chloride, formaldehydes, is vegan, and cruelty-free, we recommend that clients always consult their doctors as they will have individualized care plans. We are happy to provide MSDS sheet.

Isopropyl alcohol is at a very low level (about 0.5%) in the K18 Mask formula. It is part of an ingredient blend, but it is not directly added to the formulas. It acts as a solvent by making the conditioning agents able to blend into the formulations. The in-salon K18 Treatment promises to protect hair and lessen damage. It improves color uniformity and longevity, and adds strength, shine and manageability, according to K18 Hair. Here’s what the service looks like:

before

If toning, use K18 PRO mist first, wait 4 minutes, then apply toner directly over PRO mist. Process as usual. Rinse or shampoo toner + apply K18 PRO mask per instructions above. The K18 professional molecular repair hair mask is meant to be used as the second part of the K18 molecular repair service. K18Peptide™ is not able to regenerate bonds in the presence of too much water inside the cortex. However, the hair needs to be slightly damp to help with penetration of the product into the hair. By reconnecting these polypeptide chains, the mask strengthens along the length and width of the hair, offering a full 360 approach. For cases of extreme metal + mineral buildup, process up to 10 minutes, then proceed with the instructions.

To avoid weighing down fresh curls, it is not recommended to use the K18 professional molecular repair hair mask or oil immediately after completing a perm service. Apply 1-3 pumps of K18 professional molecular repair hair mask based on your client’s length and density, starting at the ends and working up towards the roots.

Towel dry hair, then apply a minimum of 10 full sprays of K18 professional molecular repair hair mist to each quadrant, increasing up to 20 sprays per quadrant as needed, depending on client’s length, density, or level of damage. Apply 1-3 pumps of K18 professional molecular repair hair mask based on your client’s length and density, starting at the ends and working up towards the roots. Let sit for 4 minutes. Do not rinse out.

Professional Molecular Repair Mist Ingredients: Water (Aqua) (Eau), Alcohol Denat., Propylene Glycol, Polysorbate 20, sh-Oligopeptide-78 (K18Peptide™), Hydrolyzed Wheat Protein, Hydrolyzed Wheat Starch, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Phenoxyethanol, Potassium Sorbate, Potassium Hydroxide, Fragrance (Parfum), Geraniol, Linalool, Hexyl Cinnamal, Benzyl Alcohol.Wait 4 minutes after chelating** (do not rinse out), then apply a minimum of 10 full sprays of K18 professional molecular repair hair mist to each quadrant, increasing up to 20 sprays per quadrant as needed, depending on client’s length, density, and level of damage. Ten years of bioscience research went into the creation of the patented K18 peptide, including scanning and analyzing 1,242 decapeptides. In plain English—this is serious science. In comparison, Olaplex uses patented Olaplex Bond Building Technology ™, that rebuilds broken disulfide bonds to restore strength. The brand's popular weekly pre-shampoo treatment repairs and prevents damage, whereas the K18 mask works to restore your hair to its previous state. For cases of extreme mineral buildup, process K18 pro chelating hair complex for up to 10 minutes, then rinse and shampoo with K18 PEPTIDE PREP™ detox shampoo. Dry hair as needed, then proceed with the instructions. This leave-in treatment mask repairs hair damage and restores hair to a healthy state after salon services. Powered by the K18PEPTIDE™ to reconnect broken polypeptide chains and disulfide bonds to renew strength and elasticity in just 4 minutes. This mask is clinically proven to repair damage from bleach* + color*, chemical services*, and heat* for immediate + lasting results.