Quick Answer
Use iHerb discount code KHQ339 at checkout.
Made from Biodegradable CornstarchCompatible with Philips Sonicare | Click-On HandlesFor Every Smile Sustainable InnovativeEco-FriendlyDurableBPA FreeOral Care Reimagined™Plus Ultra is Latin for "further beyond." It's the mantra we've adopted to inspire innovation and forward thinking. We work with professionals to bring you the best and always design with the planet in mind.Plus Ultra Replaceable Brush Heads are made from cornstarch-a sustainable material that is durable and biodegradable.Compatible with most click-on handle electric-toothbrushe bases by Philips sonicare.