How do you grow your hair 1 inch in 1 day as a black?

It's not scientifically possible to grow hair 1 inch in one day for anyone, regardless of ethnicity. Hair typically grows about half an inch per month on average. However, maintaining a healthy scalp through proper nutrition, hydration, and hair care can promote optimal hair growth over time. Using protective styles and avoiding heat damage can also help keep your hair healthy and prevent breakage.