Similar to a nicotine patch or birth-control patch, transdermal cannabis patches are highly concentrated but allow for a slow, time-released dosage of cannabis directly into the bloodstream. Since the cannabinoids enter directly through the skin there’s no need to eat, smoke or vaporize anything. The effect is long-lasting and the dosage is predictable and easily controlled. Patches can even be cut into pieces to allow for smaller dosing. Even though transdermals are applied to the skin, unlike topicals they DO break the blood-brain barrier which means they will produce psychoactive effects or get you “high”.
Patches are great for night time relief or in situations where it’s not appropriate to smoke or vape. It’s also a zero-calorie solution for those wanting the long-term effects of edibles without the calories.