Rated 4.7 out of 5 stars
122 Reviews
DAMAGE SHIELD protective conditioner
Smoothing conditioner detangles + protects from daily damage
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.
have questions?
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 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
3-day damage protection, powered by biotech
why hair needs a shield
Damage happens every day from UV rays, mechanical styling, and environmental aggressors, weakening, dulling, and causing frizz on all hair types.
how the shield works
Protect hair BEFORE daily damage occurs. Inspired by nature’s resilience to harsh environments, our biotech-produced polysaccharide delivers 3-day conditioning protection without reapplying.
expert-approved protection
Trichologist Angela Onuoha breaks down how common hair aggressors damage hair, and how DAMAGE SHIELD protects hair between K18 mask days.
PRO to PRO
See how PRO stylists are protecting hair + educating clients on DAMAGE SHIELD.
want to learn more?
Explore DAMAGE SHIELD tips, tricks, and science deep dives on the blog.
PRO Tips to Smooth + Soften Curly + Coily Hair During Services
Our guide to adding conditioning protection to your service routine. Read MoreHow to Talk To Your Clients About DAMAGE SHIELD protective conditioner
Discover how to educate + retail weightless conditioning protection to every client. Read MoreWhen Should I Use K18 Conditioner vs. Mask?
Get the guide to repairing and protecting every client’s hair. Read MoreThe Science of Hair Slip
Learn about the slippery ingredients preventing mechanical damage, and how we use biotech to avoid buildup. Read Morecertified microbiome-friendly conditioning
Biology-first formula keeps your scalp microbiome in balance with 3-day conditioning damage protection.
feel what's possible with K18
See how K18 unlocks our community's expression
recommended products
DAMAGE SHIELD pH protective shampoo
Find a Distributor
Rated 4.7 out of 5 stars
289 Reviews
Retail size of our color-safe, protective shampoo to maintain hair health + strength
molecular repair hair oil
Find a Distributor
Rated 4.8 out of 5 stars
343 Reviews
Weightless oil that strengthens, repairs damage + reduces frizz