LabPur CBD Oil CBD oil contain 15ml of oil with 10:1 ratio of CBD and THC. The 10:1 CBD to THC ratio oil provides a gentle balance of THC alongside a high CBD potency. This ratio allows the amazing benefits of THC to shine while keeping the psychoactive effects at bay. WHAT IS A CBD : THC RATIO? This refers to the amount of CBD and THC that is contained in any form of cannabis, including smokable flower, edibles, cartridges, tinctures, sublingual sprays, creams/salves, tablets, capsules and concentrates. The optimal CBD:THC ratio will vary depending on one’s individual physiology, medical conditions, and cannabis tolerance.