K18 PEPTIDE PREP™ Color-Safe Detox Clarifying Shampoo, Non-Stripping, pH-Optimized Cleanse, Removes Product Buildup, Dirt, Oils & Metals
Condition: New
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To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
Only 10 left in stock, order soon!
Arrives
Wednesday, Apr 29
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Size: 8.5 Fl Oz (Pack of 1)
Features
- A color-safe, non-stripping clarifying shampoo with the K18PEPTIDE to gently but effectively remove 99% product buildup, 95% sebum + 76% copper* for detoxified, refreshed hair.
- Deeply cleanses hair and scalp: A non-stripping lather works to unclog hair follicles while banishing dirt, oils, silicones, and things left behind from heavy product buildup including 99% of product buildup, 95% of sebum + a 76% copper reduction* after just 1 wash.
- Clears the path: Preps hair for maximum K18 Molecular Repair Leave-in Treatment results. Everything performs better on clean, clarified hair including color + chemical services, treatments, and styling products.
- Creates ideal foundation for healthy hair: This color-safe formula was engineered to deliver a deeper cleanse without disrupting hair or being harsh on the scalp.
Product Dimensions : 2.5 x 2.5 x 5.5 inches; 9.6 ounces
Item model number : K18-40035
UPC :
Manufacturer : K18 Hair
Best Sellers Rank: #3,946 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care) #116 in Hair Shampoo
#116 in Hair Shampoo:
Customer Reviews: 4.6 4.6 out of 5 stars (2,195)
Item Form: Gel
Hair Type: All
Scent Name: Floral
Other Special Features of the Product: Dermatologist Tested
Product Benefits: Our K18PEPTIDE™ repairs hair at a molecular level across multiple types of bonds, restoring hair health for all
Suitable Hair Color: Black
Brand Name: K18
Age Range Description: Adult
Global Trade Identification Number: 66
UPC: 858511001166
Model Number: K18-40035
Manufacturer Part Number: K18-40035
Manufacturer: K18 Hair
Liquid Volume: 8.5 Fluid Ounces
Number of Items: 1
Item Weight: 0.6 Pounds
Item Dimensions: 2.5 x 2.5 x 5.5 inches
Unit Count: 8.5 Fluid Ounces
Material Type Free: Formaldehyde Donor Free
Active Ingredients: Salicylic Acid, salicylic_acid
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Apr 29
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Size: 16 Fl Oz
I am positively thrilled by how revitalized my hair feels after using this incredible shampoo. Initially, I hesitated, thinking perhaps the glowing reviews I had read were embellished; however, to my astonishment, this product truly lives up to the hype. The softness and overall improved condition of my hair are beyond my expectations. It's undeniable—this shampoo has transformed my hair care routine, and I am eager to incorporate it into my weekly regimen going forward. The unparalleled cleanliness and vitality my hair now exudes thanks to this remarkable product is truly a game-changer.
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Reviewed in the United States on March 21, 2026 by Darkastlec7
Size: 8.5 Fl Oz (Pack of 1)
After testing the K18 Peptide Prep Detox Shampoo for two weeks, I’m genuinely impressed with its performance. As someone with color-treated, heat-styled hair, I’m always looking for products that detox the scalp and strands without leaving my hair feeling dry or over-cleansed — and this delivered exactly that. Cleansing Power: This shampoo provides a deep, clarifying cleanse that removes product buildup, excess oil, and environmental residue in just one wash. My scalp felt noticeably cleaner, and my hair had more natural volume at the roots. It’s strong enough to reset your hair without feeling harsh or over-drying. Gentleness & Formula: Despite the deep-cleaning effect, it doesn’t strip the hair. It’s sulfate-free and feels balanced — no squeaky or tangled feeling afterward. It lathers well with just a small amount, and the clean, subtle scent is refreshing without being overwhelming. Compatibility: It works especially well as a prep step before using bond-building or peptide-based treatments like the K18 leave-in molecular repair mask. I noticed that post-shampoo treatments seemed to absorb better and left my hair feeling smoother and stronger. ✅ Pros: Deep-cleansing without dryness Great prep for repair/bonding treatments Clean scent, good lather Safe for color-treated and damaged hair A little goes a long way ❌ Cons: Not intended for everyday use — best 1–2x per week (but that’s typical for clarifying products)
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Reviewed in the United States on June 19, 2025 by Rachel
Size: 8.5 Fl Oz (Pack of 1)
Works great without drying your hair out. All of their products are wonderful. Though a bit of a learning curve. Ive read a lot of mixed results in the reviews. This particular product is to give your hair a good thorough cleaning of all those residues from hair products. It’s concentrated so you won’t need a ton. Just add a little see if it lathers add more as needed. I work it thru my hair down to the scalp. Then let it sit for bit to let it break down the residue. Slightly towel blot dry tour hair. Even better if you have a nice microfiber hair towel to just gently squeeze and blot your hair to remove excess water but leave it still damp wet. You’re not drying it. You’re preparing it for the conditioning stage in step 2. This is imprtant, Especially for curly hair. (I have a hair wrap towel from Diva Curls and I love it!) This step is to remove excess water but leave it still wet enough to help when you apply the conditioner step. Then move on to and finally the hair oil. That seals and protects the hair and helps it to be soft and shiny I think the success of these products really is dependent on using each products in its order. Just learn about each one a bit before you dive right in. They're costly and so learning how to use them will help you not burn right thru it. I have fine hair but it’s also very thick and curly. I’m almost done with my first full size order. I tried a sample kit first. Then purchased the full size shampoo the conditioner and the hair oil. And you may be shocked at the size of the conditioner as I’m a person who typically load my hair with it as I tend to have dry curly ends. And my first thought was this can’t be right it’s too small. It requires very little. I do however have to use more to really get it fully saturated. That’s my one complaint. It’s a lot of money and that took some adjusting. Hence the advice to learn about what your buying and potentially using. I’d recommend these products. I’m curious to see how this company evolves. I hope this is helpful information.
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Reviewed in the United States on March 8, 2026 by Jamie Corpus
Size: 8.5 Fl Oz (Pack of 1)
I just used this K18 Detox Shampoo and I could see and feel the difference instantly. Even though it’s a detox shampoo, it didn’t leave my hair dry or stripped at all. My hair feels incredibly clean, light, and soft at the same time. What I love most is the fresh, healthy feeling it leaves on my scalp and hair — it feels like a true reset without that harsh, squeaky dryness that most clarifying shampoos cause. My hair looks smoother, shinier, and much easier to manage after just one use. I’m not an influencer, just a real buyer, and I’m honestly impressed with how well this works. If you’re dealing with buildup or want your hair to feel clean and healthy again, this is absolutely worth it.
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Reviewed in the United States on January 13, 2026 by jazmin
Size: 8.5 Fl Oz (Pack of 1)
This clarifying shampoo is incredible! One use and my hair and scalp are squeaky clean. It removed all of my product build up in one shampoo.
Reviewed in the United States on March 1, 2026 by August
Size: 16 Fl Oz
I’ve tried so many shampoos and this one worked amazing. It is pricey, but it works wonders.
Reviewed in the United States on March 5, 2026 by Nadine
Size: 8.5 Fl Oz (Pack of 1)
Yes yes yes! Light weight, guess not weigh down my fine hair. My hair is very soft after using this, there's no strong smell and this is definitely helping in my hair health journey! Great, high quality shampoo.
Reviewed in the United States on February 19, 2026 by Kaya
Size: 8.5 Fl Oz (Pack of 1)
love this clarifying shampoo. I’ve been using it on my blonde extensions and it works so well without making them feel dry or stripped. It really removes buildup and leaves everything feeling clean and refreshed. My hair feels lighter and looks brighter after using it, especially with blonde. It gives that deep clean without being harsh. Definitely a staple if you use extensions or just need a good detox shampoo in your routine.
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Reviewed in the United States on March 1, 2026 by J. Morse