Joico K-PAK Reconstructor Deep-Penetrating Treatment 8.5 fl oz — Rebuilds & Strengthens Damaged Hair

Joico K-PAK Reconstructor is a 5-minute, deep-penetrating treatment that rebuilds and strengthens damaged hair using keratin, arginine, and proprietary delivery technology.

This salon-favorite reconstructing treatment was formulated to target severely stressed, brittle, or chemically treated hair. Within minutes it replenishes lost protein, increases elasticity, and helps reduce breakage during combing. The formula combines keratin, amino acids and nourishing oils with a smart-release system to continuously support strands after application.

How quickly will I see improvement after using Joico K-PAK Reconstructor?

Most users notice smoother, more resilient hair right after the first five-minute application. The product works fast to reinforce weakened areas and improve manageability, so styling becomes easier and breakage on combing is reduced.

• Five-minute in-salon or at-home treatment
• Immediate smoother feel and improved comb-through
• Formulated to reduce combing-related breakage

What key ingredients restore and protect strands?

The formula centers on keratin protein to replace what hair has lost, plus arginine and targeted amino acids that rebuild inner structure. Antioxidant-rich guava extract and evening primrose oil deliver nourishment and protection against environmental stressors.

• Keratin — rebuilds and fortifies hair fiber
• Arginine & amino acids — support internal strand repair
• Guava extract & evening primrose oil — nourish and shield hair

How does the product stay effective over time?

Joico’s SmartRelease technology uses liposomes to gradually release active ingredients like rosehip oil, arginine, and keratin into the hair. This ongoing delivery helps maintain repair benefits beyond the rinse, supporting cumulative improvement with repeated use.

• Liposome delivery provides sustained ingredient release
• Continued support for weakened areas after application
• Designed for repeat use to build lasting strength

Can this be used on color-treated or chemically processed hair?

The K-PAK Reconstructor is suitable for hair that has been bleached, colored, permed, or heat-styled—any time strands need structural rebuilding. It’s widely used in salons for corrective treatments and at home for maintenance between appointments.

• Safe for chemically treated and color-treated hair
• Commonly used as an in-salon reconstructive boost
• Also effective as occasional at-home intensive treatment

Who is this for: Joico K-PAK Reconstructor is built for anyone with weakened, over-processed, or frequently styled hair that needs structural repair and immediate manageability. It’s ideal for clients following color or lightening services, people who use heat tools often, and anyone who wants to reduce breakage and restore bounce. Use as a five-minute intensive when hair needs a concentrated protein rebuild, or as part of a regular hair-recovery routine for ongoing strength and resilience.

Ingredients

WATER/AQUA/EAU, STEARAMIDOPROPYL DIMETHYLAMINE, MINERAL OIL/PARAFFINUM LIQUIDUM/HUILE MINERALE, GLYCOL STEARATE, PEG-8 DISTEARATE, SODIUM CHLORIDE, CETETH-2, HYDROLYZED HAIR KERATIN, LAURDIMONIUM HYDROXYPROPYL HYDROLYZED KERATIN, MYRISTYL MYRISTATE, CITRIC ACID, FRAGRANCE/PARFUM, SORBIC ACID, CETYL ALCOHOL, STEARYL ALCOHOL, CARTHAMUS TINCTORIUS (SAFFLOWER) SEED OIL, YEAST EXTRACT/FAEX/EXTRAIT DE LEVURE, ALOE BARBADENSIS LEAF JUICE, KERATIN AMINO ACIDS, METHYLPARABEN, PROPYLPARABEN.