Setup, Compatibility & Care
To begin using the No.4P, ensure hair is thoroughly wet. Apply a small amount and work into a lather, focusing on areas where brassiness is most visible. Use a wide-tooth comb to ensure even distribution throughout the lengths.
Compatibility: This product is safe for all hair types, including those treated with keratin or other chemical straighteners, as it is sulfate-free.
Care: Store in a cool, dry place away from direct sunlight to preserve the integrity of the pigments. If you notice a buildup of product, rotate with a clarifying shampoo once every two weeks.