Why does hair turn gray, and does plucking really make more grow? Nikol Johnson shares five surprising facts about gray hair that clear up the most common myths — the science of why silver happens, and what's true and false about caring for it.
Key Takeaways
- Hair doesn't "turn" gray — new strands grow in with less pigment as melanin production slows.
- Plucking one gray won't make more grow — a persistent myth with no basis.
- Gray hair has a different texture — often drier and coarser, so it needs more moisture.
- Genetics largely set the timing of when you go gray.
Why does hair actually go gray?
It's about melanin, not a color change to existing strands. Each hair is produced by a follicle, and pigment cells (melanocytes) give it color. As we age, those cells gradually produce less melanin, so new strands grow in with less pigment — appearing gray, silver, or white. The hair you have doesn't change color; the fresh growth simply comes in lighter.
Does plucking a gray hair make more grow?
No — this is a myth. Plucking one gray hair does not cause more to sprout in its place; each follicle produces one hair regardless of what you do to its neighbors. (Plucking can damage the follicle over time, though, so trimming is smarter than pulling.) What determines how many grays you get is largely genetics, not tweezers.
What else is true about gray hair?
A few things worth knowing: gray hair often has a coarser, drier texture because oil production changes with age, which is why it needs extra moisture — the reason a good silver hair care routine matters. When and how fast you go gray is mostly written in your genes. And silver hair can yellow from external factors, which is why keeping it bright is its own small skill.
Frequently Asked Questions
Why does hair turn gray?
Pigment cells in the follicle (melanocytes) produce less melanin as we age, so new strands grow in with less color. The existing hair doesn't change — the fresh growth simply comes in gray, silver, or white.
Does plucking a gray hair make more grow back?
No — it's a myth. Each follicle produces one hair regardless of its neighbors, so plucking one gray won't cause more to grow. Plucking can damage the follicle, so trimming is better.
Is gray hair a different texture?
Often yes — gray hair tends to be coarser and drier because oil production changes with age, which is why it benefits from extra moisture and gentle care.
What determines when you go gray?
Largely genetics — your genes mostly set the timing and pace of graying. Other factors can play smaller roles, but heredity is the primary driver.
