glutathione injections results as a skin whitening agent: Facts, myths, evidence and controversies Examining Glutathione Injection Skin Whitening:

Neuroprotection and stroke recovery Emerging research suggests DSIP may have neuroprotective properties

Kraguljac NV, Reid M, White D, Jones R, den Hollander J, Lowman D, et al

This means that the active ingredients can reach the underlying layers of the skin where they can exert a more significant effect

H.PuppoC.GonteroB.et al

The "gradual decline" group (approximately 40-50% of users) represents modal experience where benefits slowly regress toward pre-treatment baseline over 4-8 months, typically affecting users who completed shorter treatment courses (2-4 months), used lower concentrations or inconsistent application, possessed moderate to severe baseline skin damage requiring ongoing support, maintained adequate but not optimal complementary skincare, experienced significant lifestyle stressors affecting skin health including poor sleep or high stress, and faced genetic or age-related collagen production limitations