

🛡️ Elevate your hair game with science-backed daily defense!
K18 Damage Shield Protective Conditioner is a cutting-edge hair care solution designed to protect hair from daily environmental and mechanical damage for up to 3 days. Featuring the patented K18PEPTIDE, it replenishes lost protein to strengthen hair, while a pH-optimized formula enhances natural shine without silicones or wax buildup. Ideal for daily use, it softens, detangles, and fortifies hair, making it resilient, healthy, and visibly radiant.





















| Customer Reviews | 4.5 out of 5 stars 1,302 Reviews |
K**.
Great conditioner
This conditioner is a great product. It helps with my hair that is very over processed I use it daily. My hair does not feel dry and brittle. It is soft and full. I really recommend this product to anyone with processed hair.
B**T
SO GOOD
I love K18 so much. I started out with their Air Wash and have now switched most of my hair products to K18. They work so well. My hair is so soft and silky now. I live in a very dry climate and it has been a lot of effort to figure out how to care for my hair coming from a humid climate. K18 has been a game changer. My hair feels so clean and soft and alive again. A little of this conditioner goes a long way also so even though it’s a bit pricey it lasts for a long time.
S**Y
Damage Control
I bought this for my daughter for Christmas and she LOVES it! Her hair is extremely dry and this works wonders. It is a bit pricey, but great value for the money. You get what you pay for!
C**E
Excellent Conditioner
This stuff is great! It really moisturizes my hair and leaves it soft and easy to comb. Smells nice, too. Highly recommend for dry, color-treated hair. It's a little pricey, but worth every penny.
P**Y
Hair serum
It controls my fine hair
S**M
Effective but expensive
Never had such soft and silky hair-- even days after using this product once. It's like my dream shampoo, nothing else compares. However it's on the pricier side
K**P
Expensive But Worth It!
I’ve been using this product for years before I blow dry my hair. You have to just make sure that your hair is damp and towel dried not wet or it won’t work. When you apply it, leave it on for four minutes. Don’t rub it in and then come out in four minutes and use whatever other product you want it won’t make your hair greasy but instead very glossy unhealthy looking. The price point I believe, is very high for this, but it does last for quite a few months if you use it just once a week.
D**C
Leaves hair, soft and shiny
Great smelling conditioner and it works great
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