Absolutely! Our products are natural and organic and are safe for colored treated hair. However, blonde or very light colored treated hair should not use the Ayurvedic Black Soap Shampoo not because the Ayurvedic Black Soap Shampoo is not effective but because the dark hue (color) of the shampoo can dull the brilliance of blonde and lighter color treated hair. Instead, try our Honey Infused Clarifying Shampoo or our Ayurvedic Moisturizing Shampoo.