Joico K-PAK Color Therapy Luster Lock Leave-In Treatment 8.5 fl oz — Instant Shine & Repair with Keratin

This professional-strength leave-in treatment blends keratin, argan oil, and African manketti oil with Joico's SmartRelease technology to address breakage, boost shine, and help protect dyed hair from daily styling stress. It’s intended to help hair look smoother and healthier while preserving color intensity. Use it as part of your regular color-care routine to reinforce weakened strands and add immediate radiance without weighing hair down.

How does this treatment improve the look and feel of color-treated hair?

The formula delivers targeted proteins and lipids that bond with damaged areas, smoothing the hair surface and improving manageability. Lightweight oils hydrate and add gloss, while SmartRelease continues to supply repairing ingredients over time.

• Keratin replaces lost protein to fortify weakened strands.
• Argan oil provides hydration and surface shine.
• African manketti oil helps guard color against environmental fading.
• SmartRelease liposomes gradually release restorative compounds.

Will this help reduce breakage and improve strength?

Yes — the treatment is formulated to reinforce hair structure and reduce combing breakage through protein rebuilding and moisture balance. Regular use supports stronger, more resilient hair that resists snapping during styling.

• Protein-rich keratin targets damaged spots to rebuild integrity.
• Evidence-based delivery helps maintain benefits between washes.
• Improved slip reduces mechanical stress during combing.
• Formulated for color-treated hair so it won’t compromise vibrancy.

How do I use Luster Lock in my routine for best results?

Apply to damp, towel-dried hair after shampooing, focusing on mid-lengths and ends; do not rinse out. It can be used before styling or air-drying to add shine and protection, and as a maintenance boost on non-wash days.

• Dispense a small amount into palms and distribute evenly through damp hair.
• Concentrate on damaged or color-treated areas and avoid the roots if you need volume.
• Style as usual—leave-in formula supports heat styling protection and manageability.
• Use regularly for ongoing repair and color-brightening benefits.

What key ingredients make this different from typical conditioners?

The blend pairs reconstructive protein with nutrient-dense oils and a time-release delivery system for ongoing repair. Unlike rinse-out conditioners, this leave-in acts continuously to replenish and defend fragile, dyed hair.

• Keratin: seeks out and replaces lost protein in compromised fibers.
• Argan oil: delivers antioxidants and fatty acids for deep nourishment.
• African manketti oil: helps protect color from environmental fading.
• SmartRelease technology: sustained delivery of rosehip oil, arginine, and keratin.

Who is this for: Joico K-PAK Color Therapy Luster Lock is aimed at anyone with color-treated or chemically processed hair who wants quicker shine, improved strength, and color protection without heavy buildup. It’s suitable for those experiencing combing breakage, dullness from dyeing, or anyone who wants a professional, leave-in repair boost between salon visits. Safe for all hair types that require extra repair and vibrancy maintenance; adjust amount used according to hair thickness and length.

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.