Rating 8,389 Reviews

DAMAGE SHIELD protective conditioner 8.5oz

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Description

A nourishing, protective conditioner that helps shield hair from daily damage to help maintain hair health and improve smoothness and shine. Engineered to weightlessly soften and detangle while the K18PEPTIDE™ helps replenish hair during washing.

Repairs Damage Caused By

  • Bleach + Color
  • Heat
  • Chemical Services
pairs well with
K18 molecular repair hair oil
4.8
Rated 4.8 out of 5 stars
841 Reviews
Click to scroll to reviews
Weightless oil that strengthens, repairs damage + reduces frizz
PEPTIDE PREP™ detox shampoo
4.9
Rated 4.9 out of 5 stars
547 Reviews
Click to scroll to reviews
Color-safe, non-stripping clarifying shampoo with the K18PEPTIDE™
DAMAGE SHIELD protective conditioner 8.5oz

DAMAGE SHIELD protective conditioner 8.5oz

your protective conditioner questions, answered
Get started here.
The mask and conditioner serve two different purposes. The K18 mask reverses damage in 4 minutes, while the K18 conditioner protects hair from daily damage for up to 3 days*. We recommend using the K18 mask first, waiting 4 minutes, then using conditioner for additional softening and detangling benefits between K18 mask days. *Disclaimers
No, the K18 conditioner will not cause buildup on hair. The highly concentrated, lightweight gel formula means a little goes a long way. Use less than you typically would with a traditional conditioner, and build as needed.
No, the K18 conditioner will not weigh hair down. This highly concentrated, lightweight gel formula softens, smooths, and detangles without film-forming silicones or waxes that can build up over time.
No, you do not need to reapply the K18 conditioner for continued UV protection. This product is clinically proven to protect hair against damage from UV rays for up to 3 days*. *Disclaimers
No, the K18 conditioner does not have SPF. The biotech-produced polysaccharide and fortifying ceramide blend help minimize the drying and damaging effects of UV rays on the hair's cuticle. This prevents hair from becoming rough, brittle, weak, and prone to breakage from UV damage for up to 3 days*. *Disclaimers
clinically proven protection
3
%
said hair looks healthier*
94
%
said hair feels smoother*
91
%
said hair doesn’t feel weighed down*
Powered by biotech-produced polysaccharide

Acts as a biomimetic shield to protect hair BEFORE daily damage occurs—preventing damage, dullness + frizz.

how to use

1. Apply a small amount of DAMAGE SHIELD protective conditioner from mid-lengths to ends and build as needed.
2. Thoroughly rinse.

For best results, use after shampooing with DAMAGE SHIELD shampoo.

learn more on our blog
4.6
Rated 4.6 out of 5 stars
Based on 5 reviews
5 reviews
  • Lucy S.
    Verified Buyer
    I recommend this product
    Age 55 - 64
    Hair Concern Chemical damage, Heat damage, Color-care, Frizz, Fragile/brittle hair
    Hair Type Thick/Coarse
    My Results Visible Difference, Smoother Hair, Less Frizz, Less Breakage, Stronger Hair
    2 days ago
    Absolutely the BEST!

    This product is the best for dry course damage over processed hair. Put on towel, dried hair and blow dry and style as usual and your hair is more silky, smooth than ever imaginable!

    K Profile picture for K18Hair
    K18Hair
    2 days ago

    We're so thrilled to hear this, Lucy! Thank you for sharing your experience with this incredible formula!

  • Melissa W.
    Verified Buyer
    I recommend this product
    Age 35 - 44
    Hair Concern Heat damage
    Hair Type Fine/Thin
    3 days ago
    Scent mask

    It’s not overpowering and fantastic change up from the original with all the great benefits of the mask!

    K Profile picture for K18Hair
    K18Hair
    2 days ago

    It's wonderful to hear that the limited edition scent gives you that perfect balance - a fantastic change from the original without being overpowering, while still delivering all those amazing mask benefits! Thank you for sharing your experience with this special formula, Melissa!

  • Christine L.
    Verified Buyer
    I recommend this product
    Age 55 - 64
    Hair Concern Chemical damage, Heat damage, Frizz, Split-Ends, Dryness
    Hair Type Medium Density, Straight/Wavy
    My Results Less Frizz, Visible Difference, Less Breakage, Smoother Hair, Stronger Hair
    5 days ago
    The Best for Damaged Hair

    I tried this product many years ago and wasn’t really thrilled with it. However, my hairdresser continues to use many of their products and loves them. So I decided to give it another try and ordered it directly from the K-18 website. I’m not sure but I think the first time I tried it. I didn’t buy it directly from them and I think it may not have been authentic. Because this time when I tried it, it was excellent. First, I tried a small bottle and now I got a bigger bottle and I’m thinking I should’ve got the biggest bottle. Really helps with frizzy color damaged hair and split ends. I’m on my third or fourth wash and starting to notice a real difference in the texture of my hair. And it’s also. not getting tangled as much afterwards.

    K Profile picture for K18Hair
    K18Hair
    2 days ago

    We love that you went from the small bottle to the bigger one - that's always a great sign! Thank you for sharing your experience and for trusting us with your hair care journey!

  • ANGIE P.
    Verified Buyer
    I recommend this product
    Age 25 - 34
    Hair Concern Chemical damage, Split-Ends
    Hair Type Medium Density, Straight/Wavy
    My Results Bouncy Hair, Soft Touchable Hair, Shinier Hair, Smoother Hair, Odor eliminated
    1 week ago
    Nonstop compliments

    Used this mask before a girls night and everyone was asking what I was wearing. It's a mysterious, and expensive smell, like what you'd expect from a boutique hotel. It's not overly feminine, with its peppery notes to balance the floral. As a long time mask lover, I might need to go to Future Society to purchase a bottle!

    K Profile picture for K18Hair
    K18Hair
    1 week ago

    We're so excited to hear about all the compliments you received, Angie! It sounds like the limited edition scent was the perfect choice for your girls night. Thank you for sharing your wonderful experience!

  • Andrea
    Verified Buyer
    Age 25 - 34
    Hair Concern Heat damage, Chemical damage, Frizz, Split-Ends, Color-care
    Hair Type Fine/Thin, Straight/Wavy
    My Results Smoother Hair
    1 week ago
    Love the mask but hate the scent

    Wow…. The scent is just bad. Really bad. Not feminine at all. Smells like peppery dirt. I was Looking forward to trying it with a floral woodsy scent but instead it just smells like peppery and dirt … for $75 😭

    K Profile picture for K18Hair
    K18Hair
    1 week ago

    Thank you for sharing your honest feedback. We’re sorry to hear the scent didn’t meet your expectations. Fragrance preference is so individual, and we appreciate you giving the product a try. We went ahead and processed a refund for your order, you should receive an email confirmation shortly.