This product contains Vitamin E. This product does not contain Toluene, Formaldehyde, Formaldehyde Resin, Camphor, Dibutyl Phthalate (DBP), TPHP or Xylene. The nail strengthener is used for weak, thin, splitting or peeling nails.
Once you have completed the 4 week process, you may continue to use re-hydrating nail strengthener as a base coat underneath shaded nail enamel, if needed. You may repeat this 4 week process if you feel your nails need additional TLC.
First Aid Kiss can be used underneath nail polish but please note that since it is not an actual base coat, your manicure just may not last as long.