Peptide Prep™ detox shampoo

The Peptide Prep™ Detox Shampoo by K18 is a powerful yet non-stripping clarifying shampoo, that removes 99% of product buildup, 95% of sebum and 76% of copper in a single wash, leaving hair thoroughly detoxified and primed for maximum repair.

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A clarifying detox shampoo with activated charcoal, salicylic acid and K18PEPTIDE™

The Peptide Prep™ Detox Shampoo redefines what a clarifying shampoo can be. Where most detoxifying formulas leave hair stripped, brittle and unmanageable, this pH-optimised (3.8–4.2) power wash delivers a deep, thorough cleanse without compromising moisture, strength or colour integrity.

Its intentionally minimal formula, just 17 active ingredients, no fillers, no deposits, combines activated charcoal, salicylic acid and K18PEPTIDE™ for a three-pronged detox action: absorbing surface toxins and impurities, clearing follicle congestion and maintaining hair fibre strength during washing.

K18 detoxifying shampoo also uniquely targets the metals found in tap and hard water (nickel, cadmium, lead, zinc, iron and copper) that gradually dull colour and weigh hair down over time.

Designed for weekly or as-needed use, this detox shampoo creates the cleanest possible canvas to maximise the performance of K18's repair formulas, particularly the Leave-In Molecular Repair Hair Mask.

The hair benefits of K18 gentle clarifying shampoo

• Deep detox in a single wash: product buildup, excess sebum and water metals are thoroughly eliminated from the first use, without stripping moisture or leaving hair over-sensitised.
• Targeted hard water metal removal: heavy metals and minerals from tap and hard water, the hidden cause of dullness and buildup, are eliminated to restore brilliance and lightness to the hair.
• Follicle decongestion: salicylic acid penetrates to dissolve sebum blockages without drying or irritating the scalp or hair fibre.
• Colour preservation: the pH-optimised formula cleanses thoroughly without lifting colour pigments or causing excessive cuticle disruption.
• Maintained hair health: K18PEPTIDE™ limits protein loss during washing, keeping hair strong and resilient even through a deep cleanse.
• Optimised canvas for repair treatments: with no deposits or fillers left behind, the purified hair fibre absorbs K18 repair actives more effectively for amplified results.

Clinically proven results from the K18 Peptide Prep™ Detox Shampoo*

• 99% of product buildup removed after just 1 wash.
• 95% of sebum removed after just 1 wash.
• 76% of copper removed after just 1 wash.
• 90% of people said hair felt clean without feeling dry.

Key ingredients

• Activated charcoal – a powerful adsorbent that captures and removes toxins, excess oils, impurities and fine particles from the scalp and hair fibre
• Salicylic acid – a keratolytic active that dissolves sebum blockages within hair follicles without drying or sensitising the scalp or hair fibre
• K18PEPTIDE™ – a patented bioactive peptide that limits protein loss during washing, preserving the strength and elasticity of the hair fibre even through a deep clarifying cleanse
• Panthenol – pro-vitamin B5 that hydrates the hair fibre, improves suppleness and counteracts any drying effect from the clarifying process
• Glycerin – a humectant that draws moisture into the hair fibre and helps maintain hydration post-rinse

A clarifying detox shampoo for all hair types and textures, including colour-treated hair. Recommended once a week or as needed.

*Results observed in clinical testing. See k18hair.com/disclaimers.

How to use the K18 Peptide Prep™ Detox Shampoo

Swap out your regular shampoo for this power wash once a week or as needed.

Massage generously into wet hair, focusing on the scalp to break down buildup. Rinse thoroughly. Repeat if needed.

For best results, follow immediately with the K18 Leave-In Molecular Repair Hair Mask: purified, deposit-free hair maximises K18PEPTIDE™ penetration and repair efficacy.