Joico K-PAK Color Therapy Luster Lock Shine & Repair Treatment — 16.9 fl oz for Color-Treated Hair, Keratin & Argan Oil

If you color your hair and want an at-home treatment that refreshes shine while reinforcing weakened strands, Luster Lock combines keratin, argan oil, and manketti oil with a smart-release delivery system to target damage and lock in luminous color. Use it as a weekly intensive or when your color needs a visible boost and your hair needs immediate softness and strength.

How does Luster Lock restore shine and vibrancy to colored hair?

The formula replenishes surface smoothness and seals the cuticle so light reflects more evenly for a high-shine finish. Oils and proteins in the blend help revive color appearance without adding heavy residue.

• Keratin rebuilds weakened areas and smooths the strand surface.
• Argan oil provides glossy hydration without weighing hair down.
• Manketti oil helps protect color from environmental fading.
• Smart Release Technology continues delivering actives after application.

Will this treatment reduce breakage and improve strength?

Luster Lock is formulated to strengthen hair that has been weakened by chemical services and styling. Replacing lost protein and infusing lipid-rich oils helps strands resist combing and styling breakage while feeling more resilient to touch.

• Keratin deposits protein where fiber is compromised for measurable reinforcement.
• Continuous release of arginine and keratin supports ongoing repair between washes.
• Deep conditioning reduces tangles and friction-related breakage.

How do I use it for best results on color-treated hair?

Apply to clean, towel-dried hair, leaving it on according to the directions before rinsing for an instant boost. For maximum benefit, use as an occasional intensive or after services that stress color and structure.

• Shampoo, towel dry, then distribute treatment evenly through mid-lengths to ends.
• Leave on for the recommended time for deeper penetration, then rinse thoroughly.
• Use weekly or as needed—do not exceed package instructions.

What key ingredients make this different from a regular conditioner?

Unlike everyday conditioners, this treatment combines targeted protein rebuilding with nutrient-dense oils and a liposome-based delivery system to extend ingredient activity. The blend focuses on structural repair and long-lasting shine rather than simple surface smoothing.

• Smart Release Technology delivers rosehip oil, arginine, and keratin over time.
• African manketti oil adds vitamin E-rich protection against color dulling.
• Argan oil deeply nourishes without greasy buildup.

Who is this for: Joico K-PAK Color Therapy Luster Lock is designed for anyone with color-treated or chemically processed hair seeking immediate shine, reduced breakage, and improved manageability. It's suited to salon-colored hair, at-home dye users, and people who style frequently and want an intensive treatment to restore luster and strength between salon visits.

Ingredients

Water/Aqua/Eau, Butylene Glycol, Dimethicone, Sorbitol, Behenyl Alcohol, Behentrimonium Chloride, Stearyl Alcohol, Cetyl Alcohol, Glyceryl Oleate, Schinziophyton Rautanenii Kernel Oil, Pentapeptide-30 Cysteinamide, Pentapeptide-29 Cysteinamide, Tetrapeptide-29 Argininamide, Tetrapeptide-28 Argininamide, Keratin, Hydrolyzed Keratin, Cocodimonium Hydroxypropyl Hydrolyzed Keratin, Aleurites Moluccana Seed Oil, Arginine HCl, Hydrogenated Castor Oil/Sebacic Acid Copolymer, Argania Spinosa Kernel Oil, Psidium Guajava Fruit Extract, Thioctic Acid, Oenothera Biennis (Evening Primrose) Oil, Tocopheryl Acetate, Aloe Barbadensis Leaf Juice, Aminopropyl Dimethicone, Hydrolyzed Keratin PG-Propyl Methylsilanediol, Allantoin, Glycolipids, Phenoxyethanol, Stearyl Dihydroxypropyldimonium Oligosaccharides, Steartrimonium Chloride, Octyldodecanol, Propylene Glycol, PEG-6 Methyl Ether Dimethicone, PEG-90M, Citric Acid, Glycerin, Hyaluronic Acid, Polyquaternium-55, Polysilicone-19, Dipropylene Glycol, Butyl Methoxydibenzoylmethane, Isopropyl Alcohol, Sodium Ascorbyl Phosphate, Sodium Hydroxide, Alpha-Isomethyl Ionone, Butylphenyl Methylpropional, Fragrance/Parfum.