Da Vinci Laboratories has been providing high quality products to health professionals for over 20 years. Da Vinci employs highly educated personnel including a Ph.D. of Biochemistry, nutritionists, and other employees trained in applied nutrition. Da Vinci has its own corporate funded laboratory which is staffed with top-ranking professionals. Innovative Natural Products is a supplier of high quality colloidal products. They check for purity and quality of products throughout the manufacturing process.
Many products have independent assays available.
Reese has been marketing high quality over the counter specialties since 1907. The company was founded by Geroge Reese Sr., Pharmacist and was passed on to his son George Reese Jr., Pharmacist and is now being run by his son George Reese, III, Pharmacist.