Final answer:
Madam C.J. Walker was the first black woman millionaire and inventor of hair care products for black women.
Step-by-step explanation:
The first black woman millionaire and inventor of hair care products for black women was Madam C.J. Walker.
Born in 1867, Walker developed a line of beauty and hair care products specifically for black women, which became highly successful. She created the Madam C.J. Walker Manufacturing Company and became a successful entrepreneur and philanthropist.