Bryan NITRICEUTICALS - Natural Nitric Oxide Supplements for Men & Women - Promotes Blood Circulation, Oxygen & Nutrient Delivery, Daily Wellness Support - No Gluten or Dairy - 60 Vegan Lozenges

maybe look into beet lozenges. apparently your NO absorbtion occurs over a long period of time, so the longer you have the NO source in your mouth (i.e. hang time) the better NO is absorbed into the blood. most people get not much from NO boosters. https://www.amazon.com/NO2U-Bryan-NITRICEUTICALS-Supplements-Circulation/dp/B0D3SMDLRG this is the doc you wanna go with