K18 Complete System Edit

Sale price £232.90 Regular price £274.00
By K18

The K18 Complete System Edit is a full, professional-grade haircare routine designed to repair, strengthen, and restore hair health from the inside out. Powered by the patented K18Peptide™, this advanced system targets damage caused by bleaching, colouring, heat styling, chemical services, and daily wear, helping to transform hair into a smoother, stronger, and more resilient condition with continued use.

This complete set works in synergy to cleanse, repair, protect, and finish the hair, delivering visible improvements in softness, shine, elasticity, and manageability. Ideal for all hair types, especially damaged, dry, or colour-treated hair, it provides a full at-home salon system for long-term hair restoration and protection.

🧴 What’s Included in the K18 Complete System Edit

K18 Peptide Prep Shampoo (250ml)

A colour-safe, non-stripping clarifying shampoo that removes up to 99% product buildup, 95% sebum, and 76% copper, helping detoxify hair and prepare a clean foundation for repair treatments.

K18 Damage Repair Shampoo (250ml)

A pH-optimised, colour-safe shampoo powered by K18Peptide™ that gently cleanses while helping maintain hair health, reduce frizz, preserve colour vibrancy, and enhance shine. Gentle enough for daily use.

K18 Damage Repair Conditioner (250ml)

A lightweight yet nourishing conditioner that helps detangle, soften, and protect hair from daily damage, while K18Peptide™ supports hair strength and resilience during washing.

K18 Leave-In Molecular Repair Mask (50ml)

A breakthrough leave-in treatment mask that works on a molecular level to help reverse hair damage in just 4 minutes, restoring softness, strength, bounce, and smoothness with clinically proven results.

K18 HeatBounce (47ml)

A leave-in heat protectant and styling treatment that detangles, smooths, and helps reduce breakage by up to 85% after blow-drying, while providing advanced heat protection.

K18 Molecular Repair Hair Oil (30ml)

A lightweight, biotech-engineered hair oil that helps repair damage at two levels of the hair fibre, reducing frizz, enhancing shine, and improving softness without weighing hair down.

💡 Key Benefits:

  • Complete at-home K18 hair repair system
  • Powered by patented K18Peptide™ technology
  • Helps reverse damage from bleach, colour, heat, and chemical treatments
  • Improves strength, softness, shine, and elasticity
  • Reduces frizz and breakage while enhancing manageability
  • Lightweight, non-greasy formulas suitable for all hair types
  • Professional-level results in a complete routine.

All Rosser edits come with a free Rosser tote bag.

Additional Info
Ingredients
How to Apply
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**K18 PEPTIDE PREP Detox Shampoo 250ml** Water (Aqua) (Eau), Sodium C14-16 Olefin Sulfonate, Cocamidopropyl Hydroxysultaine, Salicylic Acid, Charcoal Powder, sh-Oligopeptide-78, Panthenol, Glycerin, Sodium Phytate, Guar Hydroxypropyltrimonium Chloride, Caprylyl Glycol, Caprylhydroxamic Acid, Citric Acid, Potassium Hydroxide, Sodium Hydroxide, Sodium Chloride, Fragrance (Parfum), Benzyl Salicylate, Limonene, Hydroxycitronellal, Citrus Aurantium Dulcis Flower Oil, Citrus Aurantium Peel Oil, Citrus Limon Peel Oil, Tetramethyl Acetyloctahydronaphthalenes. **K18 DAMAGE SHIELD Shampoo 250ml** Water (Aqua) (Eau), Sodium C14-16 Olefin Sulfonate, Cocamidopropyl Betaine, Sodium Methyl 2-Sulfolaurate, Sodium Lauryl Sulfoacetate, sh-Oligopeptide-78, Panthenol, Glycerin, Sodium Phytate, Guar Hydroxypropyltrimonium Chloride, Disodium 2-Sulfolaurate, Caprylyl Glycol, Caprylhydroxamic Acid, Benzoic Acid, Citric Acid, Sodium Hydroxide, Sodium Chloride, Fragrance (Parfum), Limonene, Hydroxycitronellal, Citrus Aurantium Dulcis Flower Oil, Citrus Aurantium Peel Oil, Citrus Limon Peel Oil, Tetramethyl Acetyloctahydronaphthalenes. **K18 DAMAGE SHIELD Conditioner 250ml** Water (Aqua) (Eau), Isopropyl Palmitate, Stearyl Alcohol, Propanediol, Isopentyldiol, Behentrimonium Chloride, Tocopherol, Tocopheryl Acetate, sh-Oligopeptide-78, Alteromonas Ferment Extract, Prunus Amygdalus Dulcis (Sweet Almond) Oil, Simmondsia Chinensis (Jojoba) Seed Oil, Phospholipids, Jojoba Esters, Calcium Gluconate, Hydroxypropyl Guar Hydroxypropyltrimonium Chloride, Ceramide NP, Phytosteryl/Isostearyl/Cetyl/Stearyl/Behenyl Dimer Dilinoleate, Polyquaternium-16, Stearalkonium Chloride, Isopropyl Alcohol, Butylene Glycol, Gluconolactone, Phenoxyethanol, Sodium Benzoate, Citric Acid, Sodium Hydroxide, Fragrance (Parfum), Hydroxycitronellal, Limonene, Citrus Aurantium Dulcis Flower Oil, Citrus Aurantium Peel Oil, Citrus Limon Peel Oil, Coumarin, Tetramethyl Acetyloctahydronaphthalenes. **K18 Leave-In Molecular Repair Hair Mask 50ml** Water (Aqua) (Eau), Alcohol Denat., Propylene Glycol, Cetearyl Alcohol, Dicaprylyl Ether, Cetyl Esters, Behentrimonium Chloride, Polysorbate 20, sh-Oligopeptide-78, Hydrolyzed Wheat Protein, Hydrolyzed Wheat Starch, Isopropyl Alcohol, Tocopherol, Phenoxyethanol, Potassium Sorbate, Citric Acid, Fragrance (Parfum), Geraniol, Linalool, Hexyl Cinnamal, Benzyl Alcohol, Amyl Salicylate, Benzaldehyde. **K18 HeatBounce Conditioning Heat Protectant 47ml** Water (Aqua) (Eau), Cellulose Gum, Isopentyldiol, Propanediol, Cetearyl Alcohol, Isopropyl Palmitate, Sodium Benzoate, C13-15 Alkane, sh-Oligopeptide-78 (s-Fruit Fly Oligopeptide-1) Peptides, Laurdimonium Hydroxypropyl Hydrolyzed Barley Protein, Helianthus Annuus (Sunflower) Seed Oil, Oryza Sativa (Rice) Bran Extract, Helianthus Annuus (Sunflower) Extract, Rosmarinus Officinalis (Rosemary) Leaf Extract, Tocopherol, Behentrimonium Chloride, Brassicatrimonium Chloride, Gluconolactone, Arginine, Coco-Glucoside, Lactic Acid, Cellulose, C12-20 Alkyl Glucoside, Citric Acid, Potassium Sorbate, Benzyl Alcohol, Isopropyl Alcohol, C14-22 Alcohols, Fragrance (Parfum), Amyl Salicylate, Benzyl Salicylate, Citronellol, Citrus Aurantium Peel Oil, Dimethyl Phenethyl Acetate, Geraniol, Geranyl Acetate, Isoeugenyl Acetate, Limonene, Linalool, Linalyl Acetate, Pinene, Tetramethyl Acetyloctahydronaphthalenes, Vanillin. **K18 Molecular Repair Hair Oil 30ml** 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.
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**Step 1 – Deep Cleanse | PEPTIDE PREP Detox Shampoo 250ml** Use approximately once weekly, or as needed, to remove excess product build-up, oil and impurities. Massage into wet hair and scalp, then rinse thoroughly. On other wash days, use DAMAGE SHIELD Shampoo instead. **Step 2 – Regular Cleansing | DAMAGE SHIELD Shampoo 250ml** Apply a small amount to wet hair, concentrating on the scalp. Massage gently and rinse thoroughly. Repeat if necessary. Suitable for regular washing. **Step 3 – Regular Conditioning | DAMAGE SHIELD Conditioner 250ml** On non-mask days, apply a small amount through clean, damp mid-lengths and ends. Distribute evenly and rinse thoroughly. When using the K18 Molecular Repair Mask, skip conditioner beforehand. **Step 4 – Intensive Repair | Leave-In Molecular Repair Hair Mask 50ml** After shampooing, towel-dry thoroughly until the hair is damp. Apply 1–3 pumps throughout the hair, beginning at the ends and working upwards. Leave for four minutes. Do not rinse. Use for 4–6 consecutive washes initially, then as required. **Step 5 – Heat Protection | HeatBounce 47ml** After conditioning or completing the mask's four-minute processing time, apply HeatBounce evenly through the hair. Brush through gently to distribute. Use on towel-dried hair before blow-drying and on dry hair before heated styling tools. **Step 6 – Finish | Molecular Repair Hair Oil 30ml** Apply 1–3 drops to damp mid-lengths and ends. For additional reparative benefits, allow four minutes before styling. Alternatively, smooth 1–3 drops through dry hair as a finishing treatment to reduce frizz and enhance shine. **Professional Tip:** Use PEPTIDE PREP as your occasional deep-cleansing shampoo, DAMAGE SHIELD Shampoo and Conditioner for regular care, and the Molecular Repair Mask for intensive treatment. Always allow the mask to work for four minutes before applying other styling products. Reapply HeatBounce whenever using heated styling tools.