Igk shares its signature shades straight from the salon. Professional-grade, safe and easy-to-use formulas are boosted with hair-nourishing ingredients for vibrant, dimensional color.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzes reviews to verify trustworthiness.
