What is the recommended serving of Immune Boost Formula No. 1? Customer Service Specialist February 16, 2021 01:51 Updated We recommend 1 drop per glass of water. To order this product, please check this link - https://painlessnutritionals.com/shop/immune-boost-formula-no-1/ Related articles Is Immune Boost Formula No.1 safe for people undergoing chemotherapy or radiation? Comments 0 comments Article is closed for comments.