Dr. Wolz are in operation since 1969. They thrive on producing supplements made from only naturally derived ingredients. All ingredients used have been scientifically researched and have proven effects. Dr. Wolz collaborate with the best naturopathic physicians, hospitals and scientists to support their extensive in-house research to ensure their supplements are effective and 100% safe. All products go through extensive quality control testing to ensure that only the highest quality end products are produced.