How long can you have on acrylic nails before they ruin your real nails?

No, it only temporarily damages your nails. Once the damaged part has grown out en cut off, there are no downsides anymore. It takes 3-4 months to grow new nails. Don't apply artificial nails under 21 because your body only stops growing at 21 and the EMA (ethyl methylmethacrylate) can cause health problems to your skin (psoriasis), breathing (astma), or Allergies (milk, ...).

Also, don't apply artificial nails while you're pregnant as the EMA gets in your blood and can cause the same problems to your baby.

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