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Peptide Forums (GHRH, Sermorelin, etc)
General Peptide Use & Information
GHK-cu and DHT
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<blockquote data-quote="Cataceous" data-source="post: 265595" data-attributes="member: 38109"><p>New evidence relating to copper's oral bioavailability? The amount injected is readily calculated with atomic weights. Per Wikipedia the molar mass of GHK-Cu is 340.38. The single copper atom has a molar mass of 63.546. So copper is about 19% of the complex by weight. Of course there's a further assumption that all of that copper is going to be available for other uses. Recommended daily — oral — intakes for copper seem to run around 1-2 mg. Tolerable upper limits are given as 5-10 mg/day. Your 2 mg per day of GHK-Cu gives you under 0.4 mg Cu absorbed per day. However, if incomplete oral absorption is taken into account then recommended intakes must be reduced. <a href="https://ajcn.nutrition.org/article/S0002-9165(23)18325-0/fulltext" target="_blank">One source</a> puts absorption at about 30-40%. The worst-case scenario then has the recommended daily <em>absorption</em> as 0.3-0.6 mg and the tolerable upper limits become 1.5-3.0 mg absorbed per day.</p></blockquote><p></p>
[QUOTE="Cataceous, post: 265595, member: 38109"] New evidence relating to copper's oral bioavailability? The amount injected is readily calculated with atomic weights. Per Wikipedia the molar mass of GHK-Cu is 340.38. The single copper atom has a molar mass of 63.546. So copper is about 19% of the complex by weight. Of course there's a further assumption that all of that copper is going to be available for other uses. Recommended daily — oral — intakes for copper seem to run around 1-2 mg. Tolerable upper limits are given as 5-10 mg/day. Your 2 mg per day of GHK-Cu gives you under 0.4 mg Cu absorbed per day. However, if incomplete oral absorption is taken into account then recommended intakes must be reduced. [URL='https://ajcn.nutrition.org/article/S0002-9165(23)18325-0/fulltext']One source[/URL] puts absorption at about 30-40%. The worst-case scenario then has the recommended daily [I]absorption[/I] as 0.3-0.6 mg and the tolerable upper limits become 1.5-3.0 mg absorbed per day. [/QUOTE]
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Peptide Forums (GHRH, Sermorelin, etc)
General Peptide Use & Information
GHK-cu and DHT
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