KeryFlex is not for everyone. KeryFlex Nail Restoration should not be used on individuals with peripheral vascular disease, arterial insufficiency, peripheral neuropathy, suspicious pigmented lesions on the nail or in-grown toenails. It should be avoided in patients who are pregnant, nursing or known to be sensitive or allergic to any of its ingredients. Ask your foot care provider if the KeryFlex Nail Restoration is right for you.