How big are the supplements? Sarah Russell April 22, 2021 19:31 Updated Our supplements are smaller than a paper clip! In capsule sizing, they are size 00. Related articles What is Vessel Fuel? If I add supplement for Sleep to my formula, will I be sleepy all day? Why is my cortisol result low in the morning? Vessel Fuel Ingredient and Sourcing Info What should I do if I miss my usual morning test? Can I take the test after I have eaten or drunk something?