PEPTIDE PREP™ Color-Safe Detox Clarifying Shampoo, Non-Stripping, pH-Optimized Cleanse, Removes Product Buildup, Dirt, Oils & Metals

This works wonders. Helps clean my hair really well. Lathers nicely and smells good. I use it ever 3-4days than once a week since I used to get greasy quick. But i have noticed this helps the greasy hair not get greasy as quickly. I could go longer than 4 days (I have alot of products I use to make my head greasy) I usually use this shampoo for the first wash and use my other shampoo for the second wash to give my hair some hydration. Overall great shampoo.

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.

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.

I am 71 years old with thin, baby-fine hair. I’ve always had a problem with every product designed for volume weighing my hair down. I tried K-18 on a whim and it is exactly what I’ve been looking for! My hair feels soft, is shiny, looks bouncy and hydrated and best of all, not greasy! I bought the whole line and I love it all. It’s expensive, but you only use a tiny bit. An added bonus, I see very little hair in my brush or shower and lots of baby hair growing in. The picture is just after I washed it with K18 shampoo, no conditioner, and 1 pump of the K18 leave-in mask. I imagine it would work as well for any hair type, but it is a real game changer for fine, thin hair.

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)

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.

I usually use scalp scrubs, but this is my first clarifying shampoo, it did the job of cleaning my hair very well. I bought it to use the K18 treatment. So I didn’t use conditioner or mask after. It did make my hair dry but also my hair still have a bit of dryness on the ends from highlights I did a year ago. However after using the mask my hair was good to use, so I guess I will just use this shampoo when am using the K18 treatment mask. Lately I usually have a bit of oily roots after the day I shower as I do make scalp oiling and hair and feel that other shampoos don’t really get rid of all of the oil, so I feel this shampoo is good to use after oiling hair as it really gets all of the oils out. I have a long and very very thick hair and usually my hair takes long to dry but when I used this my hair dryer very fast. I think this shampoo should be used maybe maximum twice or once a month, as it really does what it say it cleans your hair from everything, and it’s a good thing to use before K18 treatment mask. It’s considered affordable for me the bottle would last me for months personally as I would use it twice a month, I think people who have oily scalp should definitely use it more as usually the second day after I put oil on my hair, my roots are oily, but after I used this one it’s not oily at all.

The shampoo is the best. Definitely cleans your scalp

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Ottimo shampoo, ideale per capelli danneggiati! Ho provato lo *shampoo K18 ai peptidi* su consiglio di un’amica e devo dire che sono rimasta piacevolmente sorpresa dai risultati. La formula è davvero innovativa, arricchita con peptidi che aiutano a rinforzare e riparare i capelli danneggiati, specialmente se trattati chimicamente o esposti a styling frequente. Già dopo i primi lavaggi, ho notato che i miei capelli risultano più morbidi, lucidi e con una sensazione di setosità che non avevo mai sperimentato prima. Il prodotto ha una texture cremosa ma soda,che si applica facilmente e fa una leggera schiuma, ma non è eccessivamente ricca, il che lo rende adatto anche ai capelli più sottili o facilmente appesantiti. Inoltre, non lascia residui e non appesantisce i capelli, anche se si usa frequentemente. Nonostante il prezzo sia un po' più elevato rispetto ad altri shampoo sul mercato, credo che sia giustificato dalla qualità del prodotto e dai benefici che offre. La riparazione dei capelli danneggiati è una delle sue caratteristiche principali, e personalmente posso dire che i miei capelli sono diventati più forti e meno inclini alla rottura abbinati anche alla maschera della stessa linea. L'unico aspetto che potrebbe essere un po' un limite per alcune persone è che il profumo è piuttosto leggero e neutro, quindi chi cerca una fragranza più intensa potrebbe non apprezzarlo, ma per me è perfetto, soprattutto se si preferisce uno shampoo che non sovrasti il profumo di altri prodotti. Nel complesso, credo che lo shampoo K18 ai peptidi sia una scelta eccellente per chi ha capelli danneggiati o desidera un trattamento che aiuti a rinforzare la fibra capillare in modo delicato ma efficace. Ottimo prodotto che consiglio a chi cerca una cura intensa e nutriente per i propri capelli.