If your nails are almost never bare, you have probably wondered whether you are doing them harm. The short answer: polish itself is not the problem. How you apply it, take it off and treat your nails in between matters far more.
Nails do not need to breathe
Nails get oxygen and nutrients from the blood supply beneath them, not from the air, so polish does not suffocate them. More on that in do nails need to breathe?
What wearing polish constantly can do
- Yellow staining. Strong pigments, especially dark reds, blues and some purples, can stain the nail plate when there is no base coat. It is harmless and grows out.
- Dry, white, rough patches. Leaving polish on for a long time and removing it repeatedly can leave chalky white areas on the surface (sometimes called keratin granulation). A few weeks off usually clears them.
- Dryness from remover. Frequent acetone use dries nails and cuticles. Moisturize after every removal.
The real damage: peeling it off
Picking or peeling polish — and especially gel — pulls off the top layers of the nail along with it. That is what leaves nails thin, bendy and sore. Always remove with remover, or have gel soaked or filed off properly. See do gel nails damage your nails.
Should you take breaks?
You do not need to, but short breaks help if your nails are stained, dry or peeling. A week or two with just cuticle oil and a clear strengthening coat lets you see what is going on underneath. Dermatologists often suggest periodic breaks for people who wear gel or dip continuously.
Fumes, pregnancy and toenail fungus
- Fumes: brief exposure while painting is not considered harmful for most people. Paint in a well-ventilated room, close bottles promptly, and do not deliberately breathe in polish or remover.
- Pregnancy: many people keep wearing polish while pregnant. Good ventilation helps, and you can ask your doctor or midwife if you have concerns.
- Polish over toenail fungus: it hides the problem and can trap moisture, and it can stop you noticing it getting worse. Treat the fungus first; some medicated nail lacquers need polish-free nails.
Surgery and medical scans
Hospitals often ask you to remove polish, or leave at least one nail bare, before surgery, so staff can see your nail color and use a pulse oximeter clipped to your finger. For MRI scans, some metallic or glitter polishes may contain metal. Follow the instructions your hospital or imaging center gives you.
If you are planning a set, you can design it first in Nailly — shape, length, finish and art on every finger — then post it to your city's board so a nail artist who can make it claims it and books you. It is live on the App Store for the US and Canada; everything is open for your first week, then it is one monthly membership.
Questions people ask
Is it bad to wear nail polish all the time?
Not for most people. Constant polish can stain nails and, with repeated removal, cause dry, rough white patches. A base coat, gentle removal and the occasional short break keep nails healthy.
Why do my nails turn yellow from nail polish?
Pigments, especially from dark reds, blues and some purples, can stain the nail when there is no base coat. The stain grows out over a few months.
Is it bad to peel nail polish off?
Yes. Peeling polish or gel pulls away the top layers of the nail, leaving it thin, rough and weak. Always use remover, or have gel soaked off.
Is it bad to smell nail polish?
Brief exposure while painting in a well-ventilated room is not considered harmful for most people. Paint near an open window, keep bottles closed, and avoid deliberately inhaling fumes.
Can you wear nail polish during surgery?
Follow your hospital's instructions. Many hospitals ask you to remove polish, or leave at least one nail bare, so staff can check your nail color and use a pulse oximeter on your finger.
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