
Rated 4.7 out of 5 stars
123 Reviews
DAMAGE SHIELD protective conditioner
Your everyday damage shield is back in stock early June.
Professional Only
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.










your protective conditioner questions, answered
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 in the salon, or at home 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
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.
2. Thoroughly rinse.
For best results, use after shampooing with DAMAGE SHIELD shampoo.
want to learn more?
Explore DAMAGE SHIELD tips, tricks, and science deep dives on the blog.
How to Talk To Your Clients About DAMAGE SHIELD protective conditioner
Discover how to educate + retail weightless conditioning protection to every client.When Should I Use K18 Conditioner vs. Mask?
Get the guide to repairing and protecting every client’s hair.The Science of Hair Slip
Learn about the slippery ingredients preventing mechanical damage, and how we use biotech to avoid buildup.PRO Tips to Smooth + Soften Curly + Coily Hair During Services
Our guide to adding conditioning protection to your service routine.K18 FUNdamentals 09: Skipping conditioner makes me nervous
You know what's fun? When your product works. We'll be breaking down key info + recommendations to help you get the most out of K18.Myth Busting 04: Conditioners
We get it, skipping conditioner feels wrong. Especially when it’s been a post-shampoo ritual for as long as you can remember. We’re not here to cau...K18 FUNdamentals 02: Masks + Conditioners vs. K18
You know what's fun? When your product works. We'll be breaking down key info + recommendations weekly to help you get the most out of K18 We’re ...
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