Best shampoo bar for color-treated hair: preserve your color longer

The best shampoo bar for color-treated hair is FOAM’s Forest Treat, a sulfate-free shampoo bar with gentle surfactants that cleanse without dissolving color pigments. Wash with cool water 2–3 times a week and always finish with cold water to close the cuticle and lock in the color.

 

Color-treated hair is an investment. And the single greatest threat to color longevity is the wrong shampoo. Sulfates open the cuticle dramatically and dissolve color pigments with every wash, causing the color to fade quickly. A sulfate-free shampoo bar cleanses with gentle surfactants that respect both the hair’s moisture balance and the color’s integrity. Learn more about the complete routine in our complete guide to color-treated hair.

Why sulfate-free is essential for color-treated hair

Coloring opens the cuticle and pushes the dye into the hair shaft’s cortex. The cuticle then closes again, but never as tightly as before. This makes color-treated hair more porous and sensitive to dryness. Sulfates open the cuticle even further and dissolve color pigments, wash after wash. Read more about shampoo bars for color-treated hair for a more in-depth explanation.

Forest Treat: gentle cleansing that preserves color

Forest Treat cleanses with Sodium Cocoyl Isethionate, a gentle coconut-derived surfactant that does not dissolve color pigments. Organic coconut oil moisturizes porous, color-treated hair, blueberry seed oil protects with antioxidants against external stressors, and lactic acid regulates pH and closes the cuticle after washing for longer-lasting color.

Combine with a conditioner bar for complete color protection

Color-treated hair needs conditioner with every wash. Always follow with a conditioner bar for color-treated hair that helps close the cuticle and lock in both moisture and color pigments.

 

The Editor's Note: Never wash color-treated hair with hot water. Hot water opens the cuticle and accelerates color fading. Lukewarm or cool water preserves the color and gives you shiny strands.

 

Forest Treat Shampoo bar

Forest Treat Shampoo bar

179 kr
The Deep Moisture Treat Duo

The Deep Moisture Treat Duo

349 kr

How to choose the right shampoo bar for color-treated hair

Hair type What you need What Forest Treat provides
Newly colored hair Gentle cleansing, color protection Gentle surfactant preserves color pigments
Bleached hair Deep moisture, repair Coconut oil + blueberry seed oil moisturize damaged hair
Highlights Sulfate-free, pH balance Lactic acid closes the cuticle and preserves the color
Color-treated and dry hair Moisture + color protection Grapeseed oil softens without weighing hair down

 

Learn more about the complete routine for color-treated hair in our complete guide to color-treated hair.

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Vanliga frågor

How do I know what hair type I have? +
Look at the hair after it has dried naturally without products. Straight hair falls straight down. Wavy hair forms soft S-shapes. Curly hair forms defined spirals or ringlets. Fine hair feels light and thin between the fingers regardless of its curl pattern.
What is high porosity, and why does it matter? +
Porosity describes how easily hair absorbs and retains moisture. High porosity means that the cuticle is open, allowing moisture in quickly but also losing it quickly. Deep Moisture Treat Duo is particularly effective for high-porosity hair because it provides moisture and helps seal the cuticle afterward.
What is co-wash? +
Co-wash, or conditioner washing, means washing your hair solely with conditioner instead of shampoo. The method is popular among people with dry, curly hair because it avoids sulfates, which can dry out the hair.