Our formula effectively strengthens your immune system, and improves overall health. We only use the highest quality ingredients for all of our products including: quercetin gummies, quercetin phytosome, quercetin liquid, quercetin complex, Vitamin d3, vitamin c 1000mg, zinc 50mg, zinc gummies, quercetin 250mg, zinc quercetin, zinc picolinate, vita c, zink vitaminas, berberine 500mg, kids immune support, quercitin, quercetin 1000mg, zinc sulfate, resveratrol 1000mg, chelated zinc, quercetin zinc, Quercitine bromaline