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The cysteine part contains a sulfhydryl group (-SH), which is the main site involved in redox reactions
Steady glutathione levels sustain the brightening effect, which is why skipping treatments tends to slow visible progress
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A synthetic version of the naturally occurring peptide Thymosin Beta-4, TB-500 supports the bodys healing process by promoting cell migration, new blood vessel formation, and tissue regeneration
Neuroendocrinology Letters, 24 (3/4), 233-240
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