Life Kit: Health Don't mess with your cuticles (and other nail advice)
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Feb 12, 2026 
Dr. Sherry Lipner, a clinical dermatology professor who runs a nail clinic, explains nail function and medical concerns. Dr. Dana Stern, a board-certified dermatologist, breaks down nail anatomy and care basics. Titilayo Bancoli, a pro manicurist with 30+ years, shares practical cuticle and salon tips. They discuss cuticle protection, trimming and filing best practices, salon safety, polish and remover choices, and limits of supplements.
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Protect Your Cuticles
- Don't trim, cut, pick, or bite your cuticles because they seal and protect the nail matrix from infection and trauma.
- If you must manage hangnails, nip them at the base with scissors or clippers immediately.
Nail Growth Is Slow And Steady
- Nails grow slowly: about six months for fingernails and up to 18 months for toenails, so fixes take time.
- Supplements won't speed basic growth timelines significantly.
Don't Rely On Biotin
- Avoid relying on biotin for nail health unless you have a diagnosed deficiency; evidence is weak and studies are limited.
- High-dose biotin can interfere with lab tests and cause dangerous misdiagnoses.