Damage Shield Protective Conditioner

Damage Shield Protective Conditioner is rated 4.6 out of 5 by 102.
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8.5 oz.
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What It Is

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.

What It Does

• Clinically proven to provide conditioning protection against damage from UV rays*, mechanical styling**, and environmental aggressors*** for up to 3 days.

• Maintains hair health: Fortifies hair’s exterior lipid barriers to make hair more resilient and resistant to damage. K18Peptide™ replenishes protein lost during washing.

• Enhances hair’s natural shine: pH-optimized formula minimizes excess cuticle swelling during washing, to help keep hair smooth and maximize shine.

• Softens, smooths, and detangles: Without film-forming silicones or waxes that can build up over time, weighing hair down.

 

*81% breakage reduction observed on bleached hair tress with repeated grooming after 50 cycles of UV and wash exposure versus tress without K18 conditioner.

**UV and mechanical damage results observed with repeated grooming on hair tress after a simulated 3 days of UV exposure, versus tress without K18 conditioner.

***Environmental aggressors results observed on hair tress after a simulated 3 days of pollution exposure, versus tress without K18 conditioner.

What Else You Need to Know

• Biotech-produced polysaccharide acts as a biomimetic shield to protect hair against pollution and environmental aggressors.

• Fortifying ceramide blend seals damage sites in the hair cuticle—smoothing and protecting hair from further damage.

• K18Peptide™ replenishes protein lost during washing.

For Stylist Use

1. After applying K18 Pro Molecular Repair Mask, apply a small amount of Damage Shield Protective Conditioner from mid-lengths to ends. Build as needed.

2. Rinse thoroughly.

 

(You do not need to re-apply K18 Pro Molecular Repair Mask.)

 

For Client Use

1. Apply a small amount of Damage Shield Protective Conditioner from mid-lengths to ends and build as needed.

2. Rinse thoroughly.

 

For best results, use after shampooing with the Damage Shield Shampoo.

Water (Aqua) (Eau), Isopropyl Palmitate, Stearyl Alcohol, Propanediol, Isopentyldiol, Behentrimonium Chloride, Tocopherol, Tocopheryl Acetate, sh-Oligopeptide-78, Alteromonas Ferment Extract, Prunus Amygdalus Dulcis (Sweet Almond) Oil, Simmondsia Chinensis (Jojoba) Seed Oil, Phospholipids, Jojoba Esters, Calcium Gluconate, Hydroxypropyl Guar Hydroxypropyltrimonium Chloride, Ceramide NP, Phytosteryl/Isostearyl/Cetyl/Stearyl/Behenyl Dimer Dilinoleate, Polyquaternium-16, Stearalkonium Chloride, Isopropyl Alcohol, Butylene Glycol, Gluconolactone, Phenoxyethanol, Sodium Benzoate, Citric Acid, Sodium Hydroxide, Fragrance (Parfum), Hydroxycitronellal.

Purchases made in SalonCentric stores may be returned to any SalonCentric store. Purchases made through SalonCentric Customer Service, SalonCentric Business Partners, and SalonCentric.com orders Sold and Shipped by SalonCentric may be returned to a SalonCentric store; however, the return must not exceed $450 and must include the original receipt, packing slip, or invoice. For returns in-store of online orders, the refund will be credited back to the original payment method once the return has been processed. For SalonCentric.com Online Exclusive orders sold and shipped by third-party sellers, please see more details linked below for return steps.

The SalonCentric return policy does not currently apply to Kérastase & Shu Uemura purchases. Kérastase & Shu Uemura do not accept returns.

Click to see more details.

Rated 3 out of 5 by from I hate to say this didn't work for me :/ I have bleached healthy hair and after using this my hair felt dryer and frizzier after getting out the shower. I tried it twice with a different hair mask and still was dry. I'm so sad
Date published: 2025-11-07
Rated 5 out of 5 by from Highly recommend Hands down one of the best conditioners I've ever used. I lighten my hair often for vivids and this makes it feel and look stronger and healthier.
Date published: 2025-07-17
Rated 5 out of 5 by from Great for blondes! Love how well this had brought my blonde back to life!
Date published: 2025-07-14
Rated 5 out of 5 by from k18 [Employee of saloncentric] i absolutely love K18. it’s a very clean and amazing brand ! helps restore hair health
Date published: 2025-06-23
Rated 5 out of 5 by from Very nice! Left my hair feeling and looking better after 1 use!
Date published: 2025-06-01
Rated 4 out of 5 by from Nice! The smell is so clean 🤩. My hair detangled so easily afterwards and I struggle with tangles!
Date published: 2025-05-27
Rated 5 out of 5 by from K-18 This is a great product for smoothing and reconstructing
Date published: 2025-04-16
Rated 5 out of 5 by from Love A lot less hair loss and breakage. Curls hold all day using shampoo, conditioner and Ari lift volumizing spray.
Date published: 2025-04-11
Rated 5 out of 5 by from Want damage free hair? This conditioner is amazing. My hair is silky smooth and damage free
Date published: 2025-03-17
Rated 5 out of 5 by from K18 So far so good. I washed once with it and I'm Brand new platinum. I can talk a difference in the texture of my hair
Date published: 2025-02-03
Rated 5 out of 5 by from Really nice shampoo I love all K18 products. I mostly use the Detox shampoo on my backbar but am liking this one too.
Date published: 2025-01-19
Rated 4 out of 5 by from ✌🏻 Great for moisture and damage protection but I wish it detangled my long hair better.
Date published: 2025-01-18
Rated 1 out of 5 by from did nothing for my hair:( Was excited to try from all the hype on the internet but it did NOTHING for my hair? Not even being dramatic.
Date published: 2025-01-15
Rated 4 out of 5 by from Shavonne faves I love this conditioner; it's so rich and thick, and the way it is detangling hair is excellent 👌🏾 👏🏾
Date published: 2024-12-29
Rated 5 out of 5 by from WOW K18 is now my New hair care routine. You can literally feel it in the first wash nothing like anything else I’ve ever tried
Date published: 2024-12-27
Rated 5 out of 5 by from Amazing! This conditioner has transformed my hair as well as my clients. It is a great product!
Date published: 2024-11-18
Rated 5 out of 5 by from Great conditioner for extensions This product is awesome. K 18 and the entire line is great in conditioner. Smells good isn’t too heavy. Definitely is nourishing would recommend.
Date published: 2024-10-19
Rated 5 out of 5 by from Love this product Love this product! Works wonders on my clients hair!
Date published: 2024-09-29
Rated 5 out of 5 by from SO AMAZING CANNOT LIVE WITHOUT Truly an amazing product !! I have platinum blonde hair and most of my clients are also blonde or have blonde. I cannot live without this product line and just this conditioner alone. truly has changed how my hair feels as well as how fast it grows ! I LOVE K18
Date published: 2024-08-17
Rated 5 out of 5 by from Love this! I actually had a client come in and I couldn't believe how good her hair looked/felt because she had so much bleach damage. I asked what she had been using and it was the k18 shampoo and comditioner! Went and bought some asap!
Date published: 2024-07-30
Rated 3 out of 5 by from Just okay Wasnt anything special on finer hair. made my hair feel dry
Date published: 2024-07-25
Rated 4 out of 5 by from Good Nice basic nourishing conditioner. Can be too heavy if too much is applied to certain hair types.
Date published: 2024-07-16
Rated 2 out of 5 by from Meh Disappointing! I love love LOVE the k18 repair hair mask treatment, I've been using on my 3b/3c curls with highlights for years & its holy grail. The owner of the salon I work at heard about it at a hair convention before it was offered at the salon centric in our area or anywhere else and she brought me a sample. Ive been hooked ever since. It follows, when they released the shampoo/conditioner I *needed* to try them. I will leave my review of the shampoo under the shampoo product review (preview: horrible laundry detergent that was still sudsing after a dozen rinses) but you would think this conditioner feel better quality than drugstore conditioner.. Nope. My hair felt dry & dehydrated. My bleached ringlets were looking like they needed washed/reset/restyled the very next day. The only reason I am not giving lower stars is that I trust *some* science is happening in these formulas because K18 does have a good reputation but I cant imagine a client whose hair could withstand how stripping the shampoo is or how dehydrating the conditioner is.
Date published: 2024-06-23
Rated 5 out of 5 by from Love it Great on damaged hair. Can feel the difference the 1st time I used it
Date published: 2024-06-12
Rated 5 out of 5 by from If you dont know, now you know Our salon manager has been using this conditioner. She has been our guinea pig and has many different hair styles and damage and usually uses deep conditioning masks. Her last venture was dread extentions and since taking them out has been using this conditioner and loves it! Keeps her naturally thin frizzy hair smoothed and tamed.
Date published: 2024-05-23
Rated 5 out of 5 by from Hair Witnesses Protection I used to think my hair was beyond saving—like, 'survivor of a nuclear blast' kind of damaged. Then I found this damage shield conditioner. It's like my hair was enrolled in a witness protection program for split ends. Now, my locks are smoother than my last Tinder date's pick-up lines, and way more reliable. Plus, this stuff is a expensive, so my bank account is crying. Highly recommend if you want to turn your hair from disaster zone to fabulous fortress!
Date published: 2024-05-15
Rated 5 out of 5 by from 10 out of 10 Saved my clients hair that was damaged from another salon. I put her on this regimen and it was amazing.
Date published: 2024-05-03
Rated 5 out of 5 by from LOVE K18 has helped transform my hair soo much! Leaving my hair soft, shiny and healthy. 10/10 recommend.
Date published: 2024-04-17
Rated 5 out of 5 by from Easy Detangling I love this conditioner! I have easily detangle fine, medium, and thick waves, curls, coils, and kinks. The hair detangles fast and smooth silken/protected strands are left behind.
Date published: 2024-04-17
Rated 5 out of 5 by from Very satisfied 33yrs experience and no comparison to this proxy and the results!
Date published: 2024-04-07
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