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Testosterone Replacement, Low T, HCG, & Beyond
Testosterone Side Effect Management
Freezing HCG
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<blockquote data-quote="Cataceous" data-source="post: 266333" data-attributes="member: 38109"><p>I see your site says something similar:</p><p></p><p style="margin-left: 20px"><strong><em>Storage of peptides in solution</em></strong></p> <p style="margin-left: 20px"></p> <p style="margin-left: 20px"><em><strong>Peptides in solution</strong> are less stable than their lyophilized counterparts. It is recommended to aliquot peptide solutions before freezing them to avoid thaw-refreeze cycles, which can damage peptides. Solution stability depends on the type of solvent, the pH (pH 5-7 is considered as optimal), and the amino acid sequence. Peptides containing Asn, Gln, Cys, Met, Trp or Tyr tend to be less stable. Stock solutions of peptides are best prepared in dry (anhydride) organic solvents to avoid premature hydrolysis. The stability of the aliquots may range from weeks to months. What is globally accepted for peptides in solution is that they are generally stable for 1-2 weeks at +39°F, for 3-4 months at -4°F, and for 1 year at -112°F.</em></p></blockquote><p></p>
[QUOTE="Cataceous, post: 266333, member: 38109"] I see your site says something similar: [INDENT][B][I]Storage of peptides in solution[/I][/B][/INDENT] [INDENT][/INDENT] [INDENT][I][B]Peptides in solution[/B] are less stable than their lyophilized counterparts. It is recommended to aliquot peptide solutions before freezing them to avoid thaw-refreeze cycles, which can damage peptides. Solution stability depends on the type of solvent, the pH (pH 5-7 is considered as optimal), and the amino acid sequence. Peptides containing Asn, Gln, Cys, Met, Trp or Tyr tend to be less stable. Stock solutions of peptides are best prepared in dry (anhydride) organic solvents to avoid premature hydrolysis. The stability of the aliquots may range from weeks to months. What is globally accepted for peptides in solution is that they are generally stable for 1-2 weeks at +39°F, for 3-4 months at -4°F, and for 1 year at -112°F.[/I][/INDENT] [/QUOTE]
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Testosterone Replacement, Low T, HCG, & Beyond
Testosterone Side Effect Management
Freezing HCG
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