Sprinjene is a premium, handcrafted toothpaste that leverages the best of science and nature to provide gentle and effective care. Developed by a PhD scientist with a longstanding career in oral care products, sprinjene does not use harsh chemicals or abrasives. Sprinjene toothpastes fight cavities, strengthen enamel, help prevent gingivitis, help prevent plaque and tartar, whiten teeth, remove stains, freshen breath, and help eliminate dry mouth. Only sprinjene uses black seed oil with its legendary health benefits, and our ingredient selection and manufacturing processes are so meticulous that we are the only toothpaste to be certified gluten-free, vegan, kosher and halal.