glutathione cysteine & c 100 capsules Life Extension 500 mg Vitamin C Liver Support Antioxidant Supplement Life Extension, Glutathione Cysteine &

Dirr HW et al

A committee vote concerning named bulk substances cannot be generalized to every product sold under the same familiar peptide name

doi: 10.1007/BF01922266

It is oil-soluble which means it is more likely to penetrate the skin compared to the pure form of vitamin C (which is water-soluble), but it is less bio-available and is way less effective in stimulating collagen and reducing wrinkles compared to the pure form of vitamin C (L-ascorbic acid) and its other derivatives (for example, magnesium ascorbyl phosphate)

DSIP is primarily used to study signaling pathways associated with the hypothalamicpituitaryadrenal axis, circadian rhythm regulation, and neuropeptide-mediated communication