Nutrivitality Liposomal Quercetin & Vitamin C Nutrients - Highest Absorption, 150mg/500mg, 150ml, 30 doses | Vegan, Vegetarian, Gluten Free | for Immune System Health and Protection from Stress |

This dark glass bottle comes with a measuring cap making it easy to see that the daily 5ml dose is accurate. It has a pleasant lime flavour sweetened with stevia. I read that it is an immune enhancer, so I'm trusting it.