Twin Elements CBD Oil While the dropper is inside the bottle, squeeze the rubber end and release it to let it fill back up as far as it will go. This should fill up to around half of the dropper and give you a full 1ml dose of the oil. Twin Elements CBD Oil Reviews We feel that compared to CBD isolate and full-spectrum CBD, it contains the best of both sides as it preserves many beneficial compounds (terpenes, flavonoids, etc.) while also eliminating the THC. Our broad-spectrum oil is available in three strengths and three great flavors .