First, follow the basic rules, including enough rest and drinking plenty of fluids, wearing a mask, washing your hands, wiping surfaces, and avoiding crowds
Storage Guide for Maximum Potency: Long-term (Unopened): Refrigerate at 2C8C (36F46F)
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The diagnosis of 5-oxoprolinase deficiency is established by: Low activity of 5-oxoprolinase in nucleated cells such as leukocytes or cultured skin fibroblasts (5-oxoprolinase is not present in erythrocytes)
As for skin-brightening, there is a trade publication with in-vivo data showing that SAP can fade brown spots
The adverse effect profile in human observational data includes (but is not limited to) nausea, flushing, hypertension, and spontaneous erections