It is a naturally occurring compound that has been suggested to add support in cell growth and regulation, and cell death, particularly in the case of vascular endothelial cells (the innermost layer of blood vessels)
If you are interested in receiving the cosmetic benefits of buying ergothioneine, you have probably looked into current agricultural practices and found that L-ergothioneine-rich foods are hard to find, and that leaves you reliant on L-ergothioneine 5 mg for skin care
Oral Glutathione: How Does it Work
Desmopressin or 1-deamino 8-D-arginine vasopressin (DDAVP) is a V2 receptor agonist that inhibits water diuresis and controls the increasing rate of serum sodium
DaVinci Laboratories is ushering in this bioavailability-boosting technology through Glutathione with Provail, a highly stable, absorbable, and biologically active oral form of glutathione
Of course, 100 mg of protein is a lot for most applications so you may be fine with that yield and not care about losing some of your protein in the flow-through, depending on what the downstream application is for your protein