Key ingredients
4.2/5
K18's Peptide Prep Detox Shampoo is a weekly clarifier that lifts heavy product buildup, oil and the metals that hard tap water leaves behind.
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Peptide Prep Detox Shampoo
$39.00
K18's Peptide Prep Detox Shampoo is a weekly clarifier that lifts heavy product buildup, oil and the metals that hard tap water leaves behind. That matters on bleached hair, where minerals like copper can turn blonde brassy and make lightened strands feel rough. The K18 peptide in the formula helps limit protein loss, so it is gentler than most chelating shampoos, and it is safe on color. Use it once a week in place of your usual shampoo, then follow with conditioner.
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The Edyt Score
4.4 / 5.0
Targets
4.1/5
This clarifying shampoo is a peptide, Salicylic acid, Color safe.
Formula standards
4.4/5
The formula is a peptide, Salicylic acid, Color safe.
The verdict
K18's Peptide Prep Detox Shampoo is a weekly clarifier that lifts heavy product buildup, oil and the metals that hard tap water leaves behind.
Compare against similar products
Side-by-side vs 6 near substitutes (Botanic Hearth, L'Oreal Paris, Olaplex, and Tea Tree). Compare best for, hair/scalp fit, format, Edyt score, and notes. Swipe sideways to compare.
| Pick | |||||||
|---|---|---|---|---|---|---|---|
| Best for | Bleached hair washed in hard or well water | Itchy scalp clarifying between blonding appointments | Color-treated hair that needs gentle, vegan cleansing | Deep cleaning bleached hair without stripping it | Gentler clarifying on porous blonde | Clarify then restore slip immediately | Occasional oily-scalp resets on blonde |
| Hair / scalp | - | Oily / itchy scalp | - | Deep cleaning bleached hair without stripping it | - | Oily skin · Oily / itchy scalp | Oily / acne |
| Format | Clarifying Shampoo | Clarifying Shampoo | Clarifying Shampoo | Clarifying Shampoo | Clarifying Shampoo | Clarifying Shampoo | Clarifying Shampoo |
| Edyt score Methodology: The Edyt Score reflects ingredient profiles, concentration, and formulation standards. It is separate from crowd-sourced user reviews. | 4.4 | 4.5 | 4.8 | 4.5 | 4.3 | 4.7 | 4.4 |
| Notes | Peptide, Salicylic acid, Color safe | Cooling feel | Clean formula | Bond building, SLS and SLES free | At-home nail kit | Organic, Paraben-free | Cooling feel, Clean formula |
| $ / size | $39.00 | $14.99 | See price | $34.00 | $56 | $24.49 | $30 |
| Shop | Buy on AmazonThis page | Buy on AmazonProduct page | Buy on AmazonProduct page | Buy on AmazonProduct page | Buy on AmazonProduct page | Buy on AmazonProduct page | Buy on AmazonProduct page |
FAQ
Who is Peptide Prep Detox Shampoo best for?
K18's Peptide Prep Detox Shampoo is a weekly clarifier that lifts heavy product buildup, oil and the metals that hard tap water leaves behind. That matters on bleached hair, where minerals like copper can turn blonde brassy and make lightened strands feel rough. The K18 peptide in the formula helps limit protein loss, so it is gentler than most chelating shampoos, and it is safe on color. Use it once a week in place of your usual shampoo, then follow with conditioner.
How did Edyt Beauty score this clarifying shampoo?
Edyt Beauty rates Peptide Prep Detox Shampoo 4.4 out of 5 from the ingredient list, who it is for, and how the formula is built. That is separate from crowd-sourced user reviews.
How does it compare to similar products?
The compare table above stacks Peptide Prep Detox Shampoo against near substitutes for the same shopping job, including picks from Botanic Hearth, L'Oreal Paris, Olaplex, and Tea Tree. For more from the same brand, see More from K18 below.
Where can I buy it?
Shop Peptide Prep Detox Shampoo with the Buy button when it is available. We may earn a commission from qualifying purchases. Prices and availability can change.