Vitamin C 

Cost $135

Boosts your immune system, and keeps your cells healthy to speed up the healing process.

Pure vitamin C for health and immune function optimization

Vitamin C promotes mitochondrial health—vital for cell metabolism and scavenging free radicals. It supports immune cell functionality and may boost the immune system. Vitamin C is a natural antioxidant that reduces your body’s production of the reactive oxygen species that cause inflammation.

In recent years, numerous experimental reports have confirmed that low, millimolar range doses of pharmacological Vit-C may destroy tumors in vitro and prevent cancer development in vivo; Finally, high-dose Vit-C has the definite potential to provide beneficial and cost-effective anti-cancer treatment options that should be investigated further.

Resource: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9231292/