Thrive has chosen only the highest quality supplements that are hypo-allergenic, free of fillers, coatings, binders, allergens, artificial colors, preservatives, hydrogenated oils or other excipients. Many of our supplements have also been tested by independent laboratories for spoilage, contamination, bacterial and fungal growth, and heavy metal levels. With this degree of quality control you can trust that you are taking the best for safety and efficacy.