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

If your color-treated hair looks dull, fragile, or prone to breakage, this concentrated treatment is formulated to revive shine and rebuild strands without stripping color. Joico combines keratin, argan oil, and African manketti oil with a smart-release delivery system to deliver proteins and lipids where hair needs them most. The result is smoother, shinier hair that behaves healthier after a single application and improves with repeated use.

How quickly will I see improved shine and manageability?

Most users notice a visible increase in gloss and smoother texture after the first application. The formula is designed to sit on the hair long enough to penetrate and seal the cuticle, producing mirror-like shine and easier combing right away.

• Instant shine boost after one treatment
• Detangles and reduces surface frizz for easier styling
• Leaves hair soft and responsive to heat styling

Can this treatment actually strengthen color-treated hair?

Yes — the product contains keratin to help replenish the proteins lost to coloring and styling, while the rest of the formula supports resilience against mechanical damage. Bench results show substantial reduction in combing breakage and improved strand integrity when used as directed.

• Keratin helps rebuild compromised fiber structure
• Targets fragile sections to reduce breakage during brushing
• Designed to be color-safe so vibrancy is maintained

What key ingredients make this different from other treatments?

Joico K-PAK Luster Lock blends nourishing plant oils with structural proteins and a timed-release delivery system. Each component plays a role: oils soothe and hydrate, keratin replaces lost protein, and the smart-release liposomes gradually feed ingredients back into the shaft for ongoing benefit after rinsing.

• African manketti oil provides antioxidant-rich protection to help preserve color
• Argan oil deeply conditions and adds shiny slip to the hair fiber
• Smart Release Technology releases actives like rosehip oil and arginine over time

How should I use this to get the best results?

Use as a weekly intensive or whenever your color-treated hair needs a pick-me-up. Apply to towel-dried hair, focus on mid-lengths to ends, leave on according to directions, then rinse for instant shine or leave a small amount for added conditioning depending on the instructions and hair type.

• Apply to cleansed, towel-damp hair for even distribution
• Concentrate on damaged or color-treated areas for targeted repair
• Follow timing on the label—rinse thoroughly for lightweight finish

Who is this for? Joico K-PAK Color Therapy Luster Lock is ideal for anyone who colors their hair and wants a professional-strength treatment to restore luster, reduce breakage, and protect color vibrancy. It's especially useful for stressed, over-processed, or chemically treated hair that needs both immediate shine and cumulative strengthening. If you're seeking a salon-grade repair treatment with nourishing oils and keratin that won’t dull your color, this product fits into weekly or monthly maintenance routines to keep hair looking reflective, healthy, and more resilient.

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.