Nervprin™ is formulated to relieve the painful and uncomfortable symptoms caused by neuropathy. It works to reduce tingling, burning and stinging sensations in the hands and feet, reduce inflammation, aid prevention from any deterioration as well as prevent deficiencies that may cause challenging symptoms. If at any time you are unsatisfied with a product you purchased from us, you may return any opened & unopened bottles within sixty (60) days for a full refund of the returned bottles, not including shipping.