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K18 Peptide Prep™ Detox Shampoo is a clarifying shampoo used before the K18 Leave-In Mask, here in the 53 ml size. The brand describes it as colour-safe, made to remove product residue and the build-up of oils, silicones or heavy conditioners. It also comes in 250 ml and 930 ml.
- What it is: a clarifying shampoo, the step before the mask
- Use before: the K18 Leave-In Mask
- Colour-safe: yes, as the brand describes it
- Frequency: about once a week
- Format: 53 ml
What the ingredient list shows
Water opens the list, with Sodium C14-16 Olefin Sulfonate and Cocamidopropyl Hydroxysultaine right behind it. sh-Oligopeptide-78 sits sixth, ahead of Panthenol and Glycerin, and Parfum comes near the end with two named fragrance allergens. What the stylist controls is the routine: towel-dried hair to start, a full rinse, a repeat until no residue is left.
Key ingredients
From the ingredient list
- Sodium C14-16 Olefin Sulfonate: entry 2
- Cocamidopropyl Hydroxysultaine: entry 3
- sh-Oligopeptide-78: entry 6, the peptide of the formula
- Panthenol: entry 7
- Glycerin: entry 8
- Guar Hydroxypropyltrimonium Chloride: entry 10
What to expect
Expect a clarifying wash that removes product residue before the mask, as the brand presents the shampoo. The repeat is what counts: wash, rinse and wash again until nothing is left on the lengths, then move straight on to the mask.
Who it is for
- Stylists preparing hair for the K18 Leave-In Mask, which the brand recommends after this shampoo.
- Hair carrying build-up from oils, silicones or heavy conditioners.
- Coloured hair: the brand calls the shampoo colour-safe.
Who it is not for
- Anyone sensitive to the fragrance allergens on the list: Benzyl Salicylate and Limonene.
- Anyone looking for a shampoo for every wash: the directions give about once a week.
How to use
The published directions, translated from Dutch, in full.
Method A: the published directions
- Apply the shampoo to towel-dried hair and massage it into the scalp and the hair.
- Then rinse it out well and repeat until the hair is completely free of product residue.
- Then use the K18 Repair Hair Mask for the best result.
- You can use the shampoo about once a week.
Where it fits in the K18 range
The brand describes this shampoo as recommended for use before applying the K18 Leave-in Molecular Repair Mask; the directions name the mask as the next step. For the washes in between, the range has the K18 DAMAGE SHIELD pH Protective Shampoo, sold for daily use. The range's conditioner is the K18 DAMAGE SHIELD Protective Conditioner.
Complete and maintain the system
- K18 Leave-In Molecular Repair Hair Mask 150 ml: the step after this shampoo
- K18 DAMAGE SHIELD pH Protective Shampoo 250 ml: the shampoo between detox washes
- K18 DAMAGE SHIELD Protective Conditioner 250 ml: the conditioner of the range
Frequently asked questions
How often should I use the K18 detox shampoo?
About once a week: that is the frequency the published directions give. It is the clarifying step before the mask, not the shampoo for every wash.
Can I use it on coloured hair?
Yes. The brand describes it as a colour-safe, clarifying shampoo.
Do I use it before the K18 mask?
Yes. The brand recommends it before the K18 Leave-in Molecular Repair Mask, and the directions put the mask straight after the shampoo.
How do I use it?
Apply it to towel-dried hair and massage it into the scalp and the lengths. Rinse well, repeat until no product residue is left, then go on with the mask.
Which fragrance allergens does it contain?
Two are on its list: Benzyl Salicylate and Limonene.
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