When natural hair color has transitioned to at least 25 percent of white, silver or gray, it is referred to as Salt & Pepper hued.
Many people will make a decision once their hair is 25% white, silver or gray to chemically cover the lost pigmentation.
Daily Hair Tip
Whenever possible limit or avoid using a brush on curly tresses. Instead use a widetooth pick or comb with "hair friendly" edges that won't rip or tear fragile curls.