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K18

K18 Damage Shield Protective Shampoo, Reduces Frizziness & Tangles, Maintains Hair Health

  • Based on 1,677 reviews
Condition: New
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Availability: Only 10 left in stock, order soon!
Fulfilled by Amazon
Arrives Tuesday, Sep 22
Order within 19 hours and 28 minutes
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Size: 8.5 Ounce (Pack of 1)


Features

  • Color-safe but powerful cleansing: Plant-derived surfactants deliver safe but effective high-power cleansing to break down and remove dirt + oil
  • Designed for damaged hair: pH-optimized formula helps prevent excess swelling of the hair cuticle during washing, which helps maintain color, improve hair health and shine, and reduce frizz
  • Gentle enough to use every time you cleanse: Gentle on hair AND scalp. pH-optimized formula mimics hairs natural pH, to reduce cuticle swelling and maintain hair health, and preserve the scalp microbiome
  • Certified microbiome-friendly formula: Removes dirt and oil without disrupting the scalps natural protective barrier
  • Formulated with K18PEPTIDE: Helps reduce protein loss to keep hair feeling healthy and strong

Description

Is the formula of the DAMAGE SHIELD pH protective shampoo different from the PEPTIDE PREP pH maintenance shampoo? No, the formula of the DAMAGE SHIELD pH protective shampoo is not different from the PEPTIDE PREP pH maintenance shampoo. Just the name has changed, the formulation you know and love is the same. What makes the DAMAGE SHIELD pH protective shampoo special? The DAMAGE SHIELD pH protective shampoo delivers healthier hair and scalp after just one wash. Its optimized pH helps maintain the hair cuticle, preventing excess water from entering the hair, which can cause damage, dullness, frizz, and tangling. When do I use the DAMAGE SHIELD pH protective shampoo? This pH-balanced formula is gentle enough to use every time you cleanse, delivering healthier hair and scalp after just one wash. Why do I need both shampoos? You need both shampoos to deliver the most effective clean while maintaining your hair + scalp health. Detox shampoo is engineered for less frequent heavy-duty washing, and DAMAGE SHIELD pH protective shampoo is engineered for frequent washing. Damage Shield Shampoo FutureIQ Serum Damage Shield Conditioner Detox Shampoo Molecular Repair Mask AirWash Dry Shampoo Molecular Repair Oil

Product Dimensions ‏ : ‎ 2.5 x 2.5 x 5.5 inches; 9.6 ounces


UPC ‏ : ‎


Manufacturer ‏ : ‎ K18 Hair


Best Sellers Rank: #4,831 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care) #142 in Hair Shampoo


#142 in Hair Shampoo:


Customer Reviews: 4.5 4.5 out of 5 stars (1,677)


Item Form: Cream


Hair Type: Normal


Scent Name: Fresh


Other Special Features of the Product: Unscented


Product Benefits: Our K18PEPTIDE™ repairs hair at a molecular level across multiple types of bonds, restoring hair health for all


Suitable Hair Color: All Hair Colors


Brand Name: K18


Age Range Description: Adult


UPC: 858511000749


Manufacturer: K18 Hair


Manufacturer Part Number:


Liquid Volume: 8.5 fluid ounces


Number of Items: 1


Item Weight: 9.6 ounces


Item Dimensions: 2.5 x 2.5 x 5.5 inches


Unit Count: 8.5 Ounce


Material Type Free: Cruelty Free, Vegan


Recommended Uses For Product: Massage into hair, focusing on the scalp. Thoroughly rinse & repeat as needed. This conditioner is safe to use every time you wash


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Sep 22

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.

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Top Amazon Reviews

    • Best shampoo ever
Size: 8.5 Ounce (Pack of 1)
BEST SHAMPOO EVER!!! the shampoo does not require a lot of product, but it leaves your hair, shiny clean and soft. It there’s no residue or film. The amount is quite pricey, but it’s well worth it.
Reviewed in the United States on July 28, 2026 by L. Ruiz
    • It’s simply YES
Size: 8.5 Ounce (Pack of 1)
I bleach and color my hair A LOT, to the point that my naturally medium dark brown hair is a white lavender grey. Normally this would be problematic with things like drying out, frizzing, brittle, damaged hair. But people can not get over how healthy my hair is! Not just looks but feels. One wash and my hair felt clean and light. I don’t feel like I am fighting to add moisture in my hair constantly. I wouldn’t say it’s a miracle worker, I still have minor breakage but all things considered, it is nothing like what it probably should be with that much bleach! Using the shampoo and conditioner for a few months now with both the oil and mask as needed, and I gotta say I am very pleased. Yes, it is expensive. I still feel a little bit of a gut punch every time I buy it, but I only wash my hair once a week so it lasts me awhile. This will strip a little color out when you wash. For me, that’s not so problematic but I could see it being an issue for people that use heavier coloring. I find the fragrance very pleasant. ... show more
Reviewed in the United States on April 7, 2026 by Madelyn
    • Fantastic shampoo that cleans well without drying! Great suds for sulfate free!
Size: 16 Fl Oz (Pack of 1)
I am obsessed with this shampoo. I got it after my keratin treatment and it’s been wonderful. I go about a week between washes and it gets my hair super clean without my hair feeling stripped. It suds up nicely for a sulfate free shampoo which I love! The smell is really nice without being overpowering. My scalp feels so good and less dry! ... show more
Reviewed in the United States on June 29, 2026 by smuttyaudiophile
    • Finally Found a Shampoo That Helps Dry Hair
Size: 16 Fl Oz (Pack of 1)
I have older, dry hair and this shampoo has made a noticeable difference. My hair feels softer, looks healthier, and has much less frizz than before. It cleans well without stripping away moisture, which is hard to find. A little goes a long way, and my hair feels better after every wash. Definitely worth trying if dry, aging hair is a concern. ... show more
Reviewed in the United States on May 30, 2026 by Michael Collins
    • Def worth it!
Size: 8.5 Ounce (Pack of 1)
Love this conditioner!! Been using it for years.
Reviewed in the United States on July 14, 2026 by Mary
    • Great regular shampoo
Size: 8.5 Ounce (Pack of 1)
It’s a great shampoo. I like both this one for regular and then detox blend. It’s price is higher than many but I’m willing to spend for it.
Reviewed in the United States on July 4, 2026 by WA Customer
    • Hair
Size: 8.5 Ounce (Pack of 1)
This is a good product. The fragrance is soft not strong at all. Lightweight does not leave hair greasy
Reviewed in the United States on June 29, 2026 by April Byrum
    • Game Changer
Size: 16 Fl Oz (Pack of 1)
The only shampoo to EVER make game changing results. Before this shampoo, I would have to wash my hair every day because I have thin hair and it would look greasy making the thinner more prominent. I can go up to 4 days without washing, and it looks and feels so much healthier. Worth the cost and I hope they never stop making it! ... show more
Reviewed in the United States on July 19, 2026 by April Gunter

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