Proof’s Extra Strength CBD Tincture contains a maximum dose of CBD, and does not contain any THC. This tincture is good for those who need to avoid THC for their employment or other factors. It can also be paired with any of our other tinctures for an extra dose of CBD without increasing the THC content at the same time. Per dose (0.5ml): 33mg CBD Per bottle (15ml): 1000mg CBD