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As a natural component of human plasma, it is endogenous to the body and demonstrates no cytotoxic effects at the concentrations studied
As cells age or sustain damage, some stop dividing but refuse to die
Quality and sourcing considerations DSIP is not FDA-approved and exists in a regulatory gray area as a research chemical
Proper peptide storage and handling prove essential, with lyophilized peptides requiring storage at -20C or lower (optimally -80C) away from bright light and moisture, and peptides containing cysteine, methionine, or tryptophan requiring additional protection from oxidation through anaerobic storage conditions to maintain stability and biological activity throughout experimental protocols
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