It is a non-irritating ingredient that is great for those with dry skin
Many of these Nutrients are not absorbable by mouth and need to be taken by injection
Purity, for one, is non-negotiable
Air Qual Atmos Health 4 , 7993 (2011)
Jpn Pharmacol Ther 48:685697 Yang NC, Lin HC, Wu JH, Ou HC, Chai YC, Tseng CY, Liao JW, Song TY (2012) Ergothioneine protects against neuronal injury induced by -amyloid in mice
Monitoring-guided supplementation is the usual approach, typically beginning with oral supplementation if blood tests indicate suboptimal levels, and escalating to IM injection if oral treatment is insufficient or poorly tolerated