Cosmetics Formulation Development

Hello, Activated Resorcinol™ need to put in group แชมพูเปลี่ยนสีผม using SemiColor or not, see in แชมพูเปลี่ยนสีผม contains this ingredient. in the formula So I want to ask if it can be used for bleaching. สีผม is it true or not? thank you

Activated Resorcinol™ is 4-butylresorcinol is not resorcinol which is used to Hair dye and FDA are not allowed to use in skin care Activated Resorcinol™ or 4-butylresorcinol is safe for use on the skin, up to 2% for rinses like soaps, and up to 1% for skin products. such as creams, lotions, text on product website information

Thank you, my doubt is gone.