K18 — Curly Girl Method Analysis

We analyzed 16 K18 products for CG Method compatibility.

7Approved
8Caution
1Warning
0Unknown

K18 has a mix of CG-compatible and incompatible products. Check individual products below.

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Is K18 Curly Girl Approved?

Of the 16 K18 products in our database, 7 (44%) are fully Curly Girl approved, meaning they contain no sulfates, non-water-soluble silicones, or waxes. 8 products are rated caution (containing water-soluble silicones or volatile alcohols), and 1 are rated warning.

While some K18 products are CG-safe, others contain ingredients that aren't compatible with the Curly Girl Method. We recommend checking individual products using the list above or our ingredient checker.

Want to check a K18 product that's not in our database? Paste any ingredient list into our checker →

K18 — Curly Girl Method FAQ

Is K18 Curly Girl approved?

K18 has 16 products, of which 7 (44%) are CG approved. K18 has a mix of CG-compatible and incompatible products — check each product individually.

Which K18 products are CG approved?

We found 7 approved products including Damage Shield pH Protective Shampoo, K18 Damage Shield pH Protective Shampoo 250ml, K18 Detox Shampoo 250ml. Browse the full list on this page to see every K18 product with its CG status.

Does K18 use sulfates or silicones?

1 of 16 K18 products contain sulfates, and 0 contain silicones. Use our Ingredient Checker to analyze any specific product.

Where can I buy K18 in Australia?

K18 is available at oz Hair & Beauty and Sephora in Australia. Visit the retailer pages for direct links to K18 products.

K18 Products by Type

Shampoos

7 products · 5 approved (71%)

Conditioners

2 products · 1 approved (50%)

Other Products

7 products · 1 approved (14%)

Not sure about a specific K18 product? Check any ingredient list →