K18 damage repair starter set
Hit reset on damage and frizz with this reparative, 3-step mini set.
- PEPTIDE PREP™ detox shampoo removes buildup + metals for maximum molecular repair results.
- Our bestselling leave-in molecular repair hair mask reverses damage in 4 minutes.
- The molecular repair hair oil fights frizz from within for immediate + long-term frizz control.
More to know
This science-powered set delivers cleaner, healthier, and frizz-free hair.
Start with our colour-safe detox shampoo to clear product buildup, excess oil, and metals from hard water. Follow with the bestselling leave-in molecular repair hair mask—powered by the K18PEPTIDE™ and clinically proven to reverse damage from bleach + colour, chemical services, and heat* in 4 minutes. Finish with the oil, a strengthening defrizz solution that softens, adds shine, reduces split ends, and provides 450°F (232°C) heat protection*.
Just one use of PEPTIDE PREP™ detox shampoo removes*:
99% of product buildup
95% of sebum
76% of copper
One use of leave-in molecular repair hair mask delivers*:
Healthier hair in 4 minutes
One use of molecular repair hair oil delivers*:
Clinically proven damage repair
24-HR frizz control
104% more shine
78% reduction in split ends
450°F (232°C) heat protection
How to use
Begin with detox shampoo
- Massage detox shampoo into hair + scalp to remove excess buildup.
- Thoroughly rinse.
- Repeat as needed.
- Skip conditioner.
Apply the leave-in molecular repair hair mask
- Towel-dry thoroughly.
- Begin with 1 pump of K18 mask and add more as needed. Maximum recommended usage is 3 pumps.
- Apply all over, 1 pump at a time.
- Let sit for 4 minutes. Do not rinse out.
Finish with the molecular repair hair oil
- Apply 1-3 drops of molecular repair hair oil to damp hair, starting at the ends and working upward through the mid-lengths.
- Wait 4 minutes. Style as usual.
- Apply an additional 1-3 drops of molecular repair hair oil to dry hair as a finisher.
- A little goes a long way with our highly concentrated formulas. Start with the minimum recommended amount + build as needed.
PEPTIDE PREP™ detox shampoo
Water (Aqua) (Eau), Sodium C14-16 Olefin Sulfonate, Cocamidopropyl Hydroxysultaine, Salicylic Acid, Charcoal Powder, sh-Oligopeptide-78, Panthenol, Glycerin, Sodium Phytate, GuarHydroxypropyltrimonium Chloride, Caprylyl Glycol, Caprylhydroxamic Acid, Citric Acid, Potassium Hydroxide, Sodium Hydroxide, Fragrance (Parfum), Benzyl Salicylate, Limonene.
leave-in molecular repair hair mask
Water (Aqua) (Eau), Alcohol Denat., Propylene Glycol, Cetearyl Alcohol, Dicaprylyl Ether, Cetyl Esters, Behentrimonium Chloride, Polysorbate 20, sh-Oligopeptide-78 (K18PEPTIDE™), Hydrolyzed Wheat Protein, Hydrolyzed Wheat Starch, Isopropyl Alcohol, Tocopherol, Phenoxyethanol, Potassium Sorbate, Citric Acid, Fragrance (Parfum), Geraniol, Linalool, Hexyl Cinnamal, Benzyl Alcohol.
molecular repair hair oil
Caprylyl Caprylate/Caprate, Squalane, Persea Gratissima (Avocado) Oil, Helianthus Annuus (Sunflower) Oil, C13-15 Alkane, Undecane, Benzyl Alcohol, Tridecane, Castor Isostearate Succinate, Propanediol, sh-Oligopeptide-78, Fragrance (Parfum), Tocopherol, Cinnamal, Hexyl Cinnamal, Limonene, Linalool.
your healthiest hair in 3 steps
1. Massage detox shampoo into hair + scalp to remove excess buildup.
2. Thoroughly rinse.
3. Repeat as needed.
4. Skip conditioner.
1. Towel-dry thoroughly.
2. Begin with 1 pump of K18 mask and add more as needed. Maximum recommended usage is 3 pumps.
3. Apply all over, 1 pump at a time.
4. Let sit for 4 minutes. Do not rinse out.
1. Apply 1-3 drops of molecular repair hair oil to damp hair, starting at the ends and working upward through the mid-lengths.
2. Wait 4 minutes. Style as usual.
3. Apply an additional 1-3 drops of molecular repair hair oil to dry hair as a finisher.
got questions? Get started here
is it better to use the full K18 routine?
Yes, the K18 routine was engineered to deliver your cleanest, healthiest hair for optimal molecular repair results. Before the mask and oil, our PEPTIDE PREP™ category tackles every kind of buildup to create your cleanest, healthiest hair canvas. With our molecular repair formulas, you get maximum damage repair plus additional styling benefits with the oil.
will the detox shampoo dry my hair out?
No, the detox shampoo will not dry your hair out. This non-stripping formula has a pH of 3.8-4.2 that won’t leave hair over-stripped. In a consumer study, 90%* said hair feels clean without feeling dry. *Disclaimers
how do the molecular repair hair mask and oil work together?
The molecular repair hair mask and oil work together to give you the reparative benefits of the K18PEPTIDE™ in both formulas. The oil will add additional frizz-reducing, styling, and heat-protecting properties. You can layer the oil on top of the mask after the 4-minute processing time.
will the mask block the molecular repair hair oil from penetrating?
No, the mask will not block the molecular repair hair oil from penetrating. The mask is a highly concentrated treatment without any fillers so it won’t block the oil from penetrating. Like layering different skincare products, the oil can be layered on top of the mask without impacting its performance.
is the K18peptide™ in every K18 product?
K18 molecular repair + PEPTIDE PREP™ shampoos are formulated with the K18PEPTIDE™. In our molecular repair products, the peptide works at the innermost layers to reverse hair damage. In our PEPTIDE PREP™ shampoos, the peptide helps reduce protein loss to help keep hair feeling healthy and strong.