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Joico K-PAK Reconstructor Deep-Penetrating Treatment | For Severely Damaged Hair | Repair & Strengthen Strands | Rebuild & Fortify Damaged Hair | Improve Elasticity | With Keratin & Arginine

  • Based on 4,881 reviews
Condition: New
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As low as $6 / mo
  • – 4-month term
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Availability: In Stock.
Fulfilled by Amazon

Arrives Monday, Sep 1
Order within 8 hours and 31 minutes
Available payment plans shown during checkout

Style: 5.1 Fl Oz (Pack of 1)


Product Benefits: Packed with amino acids, this treatment rebuilds & strengthens strands to restore hair to its healthy greatness. See more


Hair Type: All


Material Type Free: Paraben Free, Sulfate Free


Scent: Citrus


Liquid Volume: 150 Milliliters


Product Dimensions ‏ : ‎ 2 x 2 x 6.2 inches; 5.1 ounces


Item model number ‏ : ‎ 2620335


UPC ‏ :


Manufacturer ‏ : ‎ Joico


Best Sellers Rank: #14,127 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care) #82 in Hair Treatment Masks


#82 in Hair Treatment Masks:


Customer Reviews: 4.3 4.3 out of 5 stars 4,881 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Sep 1

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews


  • Great product
Style: 8.5 Fl Oz (Pack of 1)
Great product for severely damaged hair
Reviewed in the United States on August 9, 2025 by Arron Howard

  • If you have damaged hair, please get this product
Style: 1.7 Fl Oz (Pack of 1)
If your hair has been colored, damaged, feels like straw, split ends, or fly away hairs. Please try this product. I love the way. The smells, my hair feels good and nourished after one use. Plus a little bit goes a long way. The moisture level helps so much. My hair is soft and it looks like it’s in great condition. ... show more
Reviewed in the United States on August 8, 2025 by Janette Abdon

  • Best hair reconstructor on the market.
Style: 1.7 Fl Oz (Pack of 1)
Skip the Olaplex. USE THIS. In one single use my hair has transformed from dry dull highlighted hair to high shine and health. Definitely will be using this weekly. Amazing product…. Coming from a picky girl this stuff works.
Reviewed in the United States on May 24, 2025 by Michele L MacDonald

  • Works great, but not a fan of the scent
Style: 5.1 Fl Oz (Pack of 1)
Giving it 4 stars because I really don't like the smell. It smells like pina colada, in my opinion. Which I am not a fan of. Some people may love it. Upon putting it on in the shower, it didn't feel very smooth like typical deep treatments do. I will say though upon my hair drying it looks and feels soft and has great shine. Works as it should. Just not a fan of the scent ... show more
Reviewed in the United States on May 14, 2025 by Rachelle Brummett

  • Been Using This for 30+ Years
Style: 8.5 Fl Oz (Pack of 1)
Love this stuff. Pricey, but so worth it! I don't even spend this much on face moisturizer, lol. A long time ago, a hairdresser needed to strip my hair twice, and I was told that my hair would never be the way it was. Well, I wanted to prove that person wrong. I've done my best to take great care of my hair through the years. I rarely blow-dry it and don't wash it every day. I use this product whenever I wash my hair. I know it'd be good to use something else sometimes and use this once a week or so, but I love it. I feel that it works well. It helps tremendously with tangles and it smells great, too. I don't curl my hair often, but when I do, I use very little of this product (or none) because I want the curl to last as long as possible. Because the product is slick, I feel that it could weigh down curls. I don't know if it truly does. One of my pictures is with light shining on my hair, and the other is in the dark. ... show more
Reviewed in the United States on August 4, 2023 by ESL Instructor ESL Instructor

  • Great reviews no results product
Style: 1.7 Fl Oz (Pack of 1)
So I thought okay this has so many great reviews had to work, right? Wrong. Used the while tube in 4 washings set 3-4 days apart. I have naturally brunette curly thick hair. I personally made the mistake of getting it lightened in the hip and happening balayages and it essentially fried my hair so I color damaged curly hair. The product itself smells like a mix of the aveeno oatmeal baths you’d take for chicken pox’s and a grandmothers foot cream. But it did little to nothing for my hair no smoothie silky feel didn’t take the frizz or even moderately fix any of the damage from what I could tell. I’m not expecting miracles but speaking of miracle I feel aussies 3 minute miracle has given better results then this over priced item. Don’t believe the hype in this case. ... show more
Reviewed in the United States on June 11, 2025 by Raudel

  • Bye bye breakage! Joico Reconstruction kit really works!
Style: 8.5 Fl Oz (Pack of 1)
I bought the whole Joico reconstruct kit on amazon and I'm so happy I did! Fact is that my hair was bleached in a salon, but it somehow destroyed my hair. Every time I had to wash my hair, it was a nightmare! I tried Therapiste from Kerastase first for no big difference, then I tried Penettraitt from Sebastian and saw some improvement on the hydration side, not so much on the reconstruction side. Additionally, I tried BC Bonacure pepitide repair nourishing and was able to see good improvement but still some breakage. Finally, Joico got me tremendous improvement on hydration and reconstruction in just one application!!! Im AMAZED!!! The secret, in my case, was to apply the joico kpak cuticle sealer and the deep penetraiting reconstructor masque twice. I also used the Joico kpak clarifying shampoo as the first step plus the Joico kpak intense hydrating masque as the last. Finished with Pureology color fanatics leave in spray and Kerastase blond absolu oil. THE RESULTS: My hair had almost no breakage while blowdrying, it was extremely shiny and super soft. I wish I knew that Joico treatment 3 months ago! ... show more
Reviewed in the United States on July 14, 2023 by nina

  • Product has already been used and open
Style: 5.1 Fl Oz (Pack of 1)
Mine was used but I needed it so bad I botherthe hassle to return- next time please ensure packages are unused
Reviewed in the United States on May 18, 2025 by Dee

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