The Just Potent Vitamin D3 has been manufactured with as minimal ingredients as possible so you can experience the true benefit of using a D3 supplement without all the additives common in popular and national brands. Vitamin D3 for all the right reasons is uber-beneficial to life. The benefits derived from vitamin D3 are undisputable and most definitely, unquantifiable. Numerous studies across America and Europe have backed the need for vitamin D3 supplementation.