Their legality can vary, and consultation with a medical professional is advised
doi:10.1002/cjoc.201300061 ZhouW, Shultz JW, Murphy N, Hawkins EM, Bernad L, Good T, Moothart L, Frackman S, Klaubert DH, Bulleit RF, Wood KV (2006) Electrophilic aromatic substituted luciferins as bioluminescent probes for glutathione S-transferase assays
"Genome-wide association study of vitamin B6, vitamin B12, folate, and homocysteine blood concentrations"
Oxidative stress: harms and benefits for human health
Realistic expectations should account for the fact that genuine tissue regeneration requires weeks to months, not days