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K18

K18 Damage Shield Protective Conditioner, Protects Hair from Daily Damage, Improves Strength & Shine

  • Based on 1,043 reviews
Condition: New
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Availability: Only 10 left in stock, order soon!
Fulfilled by Amazon

Arrives Saturday, Feb 14
Order within 6 hours and 16 minutes
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Size: 8.50 Ounce (Pack of 1)


Language ‏ : ‎ English


Product Dimensions ‏ : ‎ 2.5 x 2.5 x 5.5 inches; 7.05 ounces


Item model number ‏ : ‎ K18 - Damage Shield - Conditioner - 250


UPC ‏ :


Manufacturer ‏ : ‎ K18


Best Sellers Rank: #4,156 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care) #46 in Hair Extensions, Wigs & Accessories


#46 in Hair Extensions, Wigs & Accessories:


Customer Reviews: 4.5 4.5 out of 5 stars (1,259)


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Feb 14

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Excellent Conditioner
Size: 8.50 Ounce (Pack of 1)
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.
Reviewed in the United States on November 25, 2025 by Camille

  • SO GOOD
Size: 8.50 Ounce (Pack of 1)
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. ... show more
Reviewed in the United States on January 21, 2026 by Britt

  • Great conditioner
Size: 8.50 Ounce (Pack of 1)
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.
Reviewed in the United States on February 7, 2026 by KERI V.

  • Damage Control
Size: 8.50 Ounce (Pack of 1)
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!
Reviewed in the United States on January 23, 2026 by Stacy

  • Not sure yet.
Size: 8.50 Ounce (Pack of 1)
I have extremely dry and thinning hair. My hair gets to a certain length and falls out. Bought this product because in the description it’s says it can help with the issues I’m having with my hair. I’ve been using this product for a few weeks now. It does seem to help with my hair looking fuller. I don’t see my hair falling out as much as before. There is no strong scent like I read in other comments. However, my hair is still very dry. Give it 4 stars for now. Will continue to use. If I see better results will update my review. ... show more
Reviewed in the United States on August 7, 2025 by Lily Love Lily Love

  • Great for frizzy/ fine hair prone to split ends
Size: 8.50 Ounce (Pack of 1)
Excellent conditioner. My hair is fine and frizzy… this seems to calm the frizz down with little product needed.
Reviewed in the United States on February 1, 2026 by J

  • $3000 spent on hair products & this is my fav go to
Size: 8.50 Ounce (Pack of 1)
The media could not be loaded. Hello, so I really do like this one allot. I have spent about $3000 on higher quality hair products over the last cpl months bincluding this line but out of ALL the leave in conditioners I've bought I like this one the best. The bottle is a great size at 8.5 oz, is very creamy & lasts a long time. What's also a plus to me is it still works great on top/over every other product I've put in my hair. In my video you'll see it is a thicker consistency compared to most (& all of what I've bought) & this works out best for my hair which is colored, damaged, dry & frizzy. Also what I love is that I can always use it on top of everything else I have in my hair even if I'm on the road & have not washed my hair for a few days but keep using product I can still wet my hair with my fingers/hands & reapply this & it is like new! I'm not sure if it helps with shine but it does make my hair softer & most of all helps with the dryness & with taming most of my frizz. This one can also be used on wet or dry hair. If your hair sounds like mine definitely give this one a try. ... show more
Reviewed in the United States on May 11, 2025 by Misss.D

  • Nice, but expensive. Not sure it actually works.
Size: 8.50 Ounce (Pack of 1)
I really like the conditioner. I have very fine hair that break very easily. That’s why bought the product. Can’t really say for sure that it did anything to bond or mend my hair. Maybe if I got a super cut and then used it preventable as my hair grows? But idk. Not really worth the price for me.
Reviewed in the United States on November 14, 2025 by Kathryn Reed

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