oral glutathione bioavailability issues as a skin whitening agent: Facts, myths, evidence and controversies NAD vs Glutathione: Key Differences

Glutathione can enhance immune function, particularly by supporting white blood cell activity and protecting immune cells from damage, which is beneficial for anyone with immune system concerns (Jones et al., 2019)

A., Handy, J

3.3 Discoloration Mushrooms are susceptible to browning due to microbial contamination or enzymatic activities, with enzyme activities considered the primary cause of browning on fruits and vegetables (47)

doi:10.3821/1913-701X-142.5.248

No claims are made regarding therapeutic, diagnostic, or clinical application

The answer is reassuring if you use Glutathione in the form of creams, lotions and serums