K18 Peptide Prep Detox Clarifying Shampoo
- Clarifying detox shampoo, color safe
- 99% of product buildup removed in one wash, per clinical claim
- 95% sebum and 76% copper removed in one wash
- Activated charcoal and salicylic acid
- K18PEPTIDE to reduce protein loss
- 1x weekly in place of regular shampoo
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A color-safe weekly detox shampoo that clears buildup, oil and hard water metals with charcoal and salicylic acid. It is a reset, not a daily wash.
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ASIN: B0B4DXHCRRCategory: Hair Shampoos
Overview
People with hard tap water or heavy product habits get a weekly clarifying shampoo that lifts dirt, oil, metals and buildup from hair and scalp. Activated charcoal and salicylic acid do the cleaning, and a peptide limits protein loss.
The brand pitches this as prep for its hair mask, clearing the slate so the mask works better. It is a weekly reset, not a daily shampoo, and its pH-optimized lather is designed to protect color while it clarifies.
Who it's for
Color-treated hair dulled by hard water minerals or styling residue, used once a week. People who want a gentle daily wash should pair it with a regular shampoo rather than use it every day.
Pros and cons
- Clears hard water metals
- Color safe, pH optimized
- Charcoal and salicylic acid
- Reduces protein loss
- Weekly reset, not a daily shampoo
- Clinical claim footnotes not explained
Performance notes
Activated charcoal absorbs impurities and salicylic acid clears sebum at the scalp, while the formula targets metals from hard water. A peptide helps reduce protein loss so clarifying does not leave hair feeling weak. Massaging into the scalp and rinsing thoroughly gets the full effect.
Specifications
| Brand | K18 |
|---|---|
| Dimensions & fit | |
| Item Weight | 0.6 pounds |
| Item Dimensions | 2.5 × 2.5 × 5.5 inches |
| Capacity & performance | |
| Liquid Volume | 8.5 fl oz |
| Age Range Description | Adult |
| Construction & materials | |
| Material Type Free | Formaldehyde Donor Free |
| Suitable Hair Color | Black |
| Included components | |
| Unit Count | 8.5 fl oz |
| Other details | |
| Hair Type | Chemically Treated-Hair |
| Active Ingredients | Salicylic Acid, salicylic_acid |
| Item Form | Gel |
| Scent Name | Floral |
| Number Of Items | 1 |
| Product Benefits | Our K18PEPTIDE™ repairs hair at a molecular level across multiple types of bonds, restoring hair health for all |
| Other Special Features Of The Product | Dermatologist Tested |
Frequently asked questions
How do you use K18 Peptide Prep Detox Shampoo?
Use it in place of your regular shampoo, massage it into hair and scalp, rinse thoroughly, and repeat as needed.
Does K18 Detox Shampoo work with the K18 mask?
Yes. It is designed to create a clean canvas for results from the K18 mask.
Does K18 Detox Shampoo strip moisture?
The brand says it clears sebum buildup without stripping essential moisture or lipids.