HC YELLOW NO. 4

AI-analyzed

hair dyeing

What it does

HC Yellow No. 4 is a synthetic dye specifically used in hair coloring products. It imparts a yellow shade to the hair, often used in conjunction with other dyes to achieve desired tones.

Skin Concerns

May aggravate

sensitivityredness

Safety & Science

Safety summary

Generally considered safe for use as a hair dye. Allergic reactions or skin irritation can occur in sensitive individuals, so a patch test before use is advised.

CAS Number

59820-43-8

Found In Products

Related Ingredients

For informational purposes only. This is not medical advice. Always patch test new products and consult a dermatologist for skin concerns.