NEW BLOG POST: Gray Hair Is Technically One of the Only Signs Of Aging that can Reverse Itself
(even if you're over 35)

Your hair gets its color at the root, as each strand grows.

Which means a strand that grows in gray now can grow in with pigment later.

Long-term stress keeps your nervous system in survival mode, which can drain the stem cells that make your hair's pigment. When that stress comes down, color can come back.
Get the 7 signs your grays are stress-related, plus the Columbia study that watched gray strands return to their natural color.