Bio-First is praised for its natural remedies and high-quality products. Users appreciate the brand's commitment to being synthetic-free and radically transparent. The Self Heal Salve and Manuka Skin Saver are particularly popular, with customers noting their effectiveness in treating various skin issues. The brand's products are also Think Dirty certified and Made Safe, which adds to their credibility. Overall, Bio-First is well-regarded for its innovative formulas and natural ingredients.