K18 PEPTIDE PREP Detox Shampoo

Pre-treatment clarifying shampoo — resets hair for maximum mask results

~CGM ModifiedContains ProteinStep: Cleanse

Where to Buy

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K18 Hair UK

In stockBest price

£39.00Buy

Our Take

A clarifying shampoo formulated with activated charcoal, salicylic acid, and K18PEPTIDE™. Removes 99% of product buildup, 95% of sebum, and 76% of copper (from hard water) after one wash. Designed to be used weekly or as needed — not as an everyday shampoo — to reset the scalp and hair before applying the K18 mask or before colour services. The K18PEPTIDE™ here acts protectively, reducing protein loss during the clarifying process rather than delivering repair. Contains alpha-olefin sulphonate (AOS), a surfactant considered cgm_modified by strict CGM followers despite not being a traditional SLS or SLES. An essential prep step if you use heavy styling products or live in a hard water area.

Who is this for?

Our assessment — not the brand's claim

Curl Pattern

Porosity

LowNormalHigh

Free From

✓ Sulphate-Free✓ Silicone-Free✓ Paraben-Free✓ Alcohol-Free

Ingredients at a Glance

Water

Solvent

Universal solvent and primary base of most hair products.

Sodium C14-16 Olefin Sulfonate

~ Caution

Surfactant

Strong anionic surfactant. A sulFONATE not sulFATE - technically CGM-compliant but quite s…

Cocamidopropyl Hydroxysultaine

Surfactant

Mild amphoteric surfactant that boosts foam. CGM-friendly.

K18PEPTIDE

Peptide

Panthenol

Conditioning Agent

Pro-vitamin B5 that moisturises, strengthens and adds shine.

Free From

✓ Sulphate-Free✓ Silicone-Free✓ Paraben-Free✓ Alcohol-Free

Want to know more about an ingredient? Browse the ingredient glossary →

How to Use

Swap out your regular shampoo for this once a week or as needed — not for everyday use. Massage into wet hair and scalp, then rinse thoroughly. Repeat if you use heavy styling products. Best used immediately before applying the K18 molecular repair mask for maximum results.