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When stored properly in the refrigerator, a solution reconstituted with bacteriostatic water should remain stable and potent for at least 30 days, and often up to 45
But, as with any medication, they have side effects
Some small peptides are used topically in skincare, GHK-Cu being the best-known example, but skin absorption of larger injected peptides is unreliable
doi: 10.1038/s41577-020-00478-8 158 MajTWangWCrespoJZhangHWangWWeiSet al
Brief cloudiness immediately after introducing the diluent is sometimes normal as the lyophilized structure begins to dissolve
While collagen plays a crucial role in providing structure, strength, and support to the skin, glutathione works to neutralise the effect of free radicals
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