A hair splinter occurs when a strand of hair pierces the skin and embeds itself under it. You may not notice it right away, but when you do, it can cause pain and irritation. It’s a small but ...

Meet the hair splinter—a surprising and often painful issue, especially for barbers, pet groomers, or anyone who handles cut hair regularly. These tiny, sharp hair fragments can embed themselves ...

Imagine getting a splinter, but instead of wood or metal, it’s a tiny strand of hair piercing your skin. ... Freshly cut hair can be sharp enough to penetrate the skin,” he explains.

Outside experts said LinusBio’s hair strand test has shown promise but needs more research. “To me this feels like it’s on the earlier side of things, not the earliest.