1. color: natural black is pure black, and mocha brown is a kind of dark brown with red tone, which can be used by people with red hair. Although there are some color differences, they are both common and suitable for most people's hair colors.
2. Suitable for people: Natural black wigs are suitable for people who want to improve their hair quality and pursue hairstyle effects, such as trying to cover their white hair after failing to dye their hair. Mocha brown wig is suitable for people who want to look younger and more lively, especially those with fair skin, because this color can better enhance skin color.
To sum up, the choice of wig mainly depends on personal preferences and needs. If you want to look younger and more lively, you can try mocha brown wig. If you want to improve hair quality and cover white hair, you can try a natural black wig.