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L-cysteines chemical structure contains a thiol (-SH) functional group, creating unique chemical properties for protein synthesis
It prevents major birth defects in children, supports bone health, improves mood, and helps you maintain healthy skin and hair
While this effect is minor in a sealed vial over the short term, refrigeration helps keep the preservative where it belongs: in the solution
[If] youre taking it orally, we know that peptides are not going to survive, Kekic says
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