K18 Peptide Prep™ Detox Shampoo 930ml is the salon-size format of the cult clarifying shampoo from biomimetic-haircare brand K18. Powered by activated charcoal, salicylic acid and the brand's signature K18PEPTIDE™, the formula delivers deep cleansing without over-stripping — clinically proven to remove 99% of product build-up, 95% of sebum and 76% of copper from hair. pH-optimised, colour-safe, vegan and cruelty-free.
About K18
K18 is an American biomimetic-haircare brand that became one of the most talked-about hair innovations of recent years thanks to its patented K18PEPTIDE™ — a small bioactive peptide designed to renew damaged hair from within. Peptide Prep is the brand's clarifying line, dedicated to deep cleansing as part of the K18 system.
Key ingredients
- Activated charcoal: Absorbs toxins, excess oils and dirt from the hair and scalp.
- Salicylic acid: Clears sebum build-up without stripping moisture and lipids.
- K18PEPTIDE™: Acts as a protective shield to reduce protein loss during cleansing.
- Panthenol and glycerin: Hydrating support to keep hair comfortable.
Key benefits
- Deep clarifying action: Removes 99% product build-up, 95% sebum, 76% copper.
- Non-stripping formula: pH-optimised at 3.8–4.2 to protect the hair cuticle.
- Colour-safe: Helps preserve colour-treated hair.
- Salon-size format: 930ml — long-lasting size for committed users or salon use.
- Vegan, gluten-free, cruelty-free: Cleaner formulation standards.
Who it's for
Suited to anyone wanting to detox their hair from product build-up, hard-water minerals or excess sebum without stripping the cuticle — particularly useful for those in hard-water areas, performance and gym users, or as the prep step before a K18 hair mask. Best used once weekly, or as needed.
How to use
- Wet hair thoroughly.
- Apply a generous amount of shampoo through the hair and scalp.
- Massage to create a rich lather.
- Rinse thoroughly.
- Follow with a conditioner or, ideally, the K18 leave-in molecular repair hair mask.
Specifications
- Size: 930ml (salon size)
- Format: Clarifying detox shampoo
- Vegan, cruelty-free: Yes
- Brand: K18 (Peptide Prep)
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