Cover Your Gray for Men Jet Black, 0.15 oz by Cover Your Gray

Q: What is difference between black and jet black ?

Regarding hair color, one major difference is that the natural black color lacks the intensity and undertones of jet-black hair or dye. This intensity can be observed when the sunlight hits the hair. 3. ... Jet-black hair can have blue or purple undertones, while natural black doesn't have any undertones