NBPure

NBPure makes natural digestive and gut health supplements, sold mainly through its own online shop. Its best-selling products include MagO7, an overnight magnesium oxide formula meant to help with occasional constipation and bloating, Daily Multi-Fiber with prebiotics and probiotics, and Plant Protein+, a vegan protein powder. The line also includes enzyme, liver and vitamin B-12 products.

The company says its ingredients are naturally sourced and additive free, and that its finished products are third-party tested for purity and potency. Orders are placed through the website, where subscribe-and-save options and a rewards program are offered. The company also lists a reseller program and a store locator for shops that carry its products.