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    <title>Polypeptides — Research Peptides &amp; Chemicals</title>
    <link>https://polypeptides.store</link>
    <description>Latest research peptides and chemicals. 99%+ purity, public COAs, fast international shipping.</description>
    <language>en-us</language>
    <lastBuildDate>Wed, 03 Jun 2026 22:08:49 +0000</lastBuildDate>
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    <item>
      <title>How to Read a Certificate of Analysis (COA) for Research Peptides</title>
      <link>https://polypeptides.store/blog/coa-purity-guide</link>
      <description>Learn to verify peptide purity: HPLC, mass spectrometry, and how to identify fake COAs.</description>
      <guid>https://polypeptides.store/blog/coa-purity-guide</guid>
      <pubDate>Sat, 30 May 2026 00:00:00 +0000</pubDate>
      <category>Blog</category>
    </item>
    <item>
      <title>Bromantane: Complete Guide to the Atypical Psychostimulant</title>
      <link>https://polypeptides.store/blog/bromantane-guide</link>
      <description>Deep dive into Bromantane: mechanism of action, dosage, research findings, and safety profile.</description>
      <guid>https://polypeptides.store/blog/bromantane-guide</guid>
      <pubDate>Sat, 30 May 2026 00:00:00 +0000</pubDate>
      <category>Blog</category>
    </item>
    <item>
      <title>Research Peptides: A Comprehensive Guide for Researchers</title>
      <link>https://polypeptides.store/blog/research-peptides-guide</link>
      <description>Everything researchers need to know: sourcing, handling, storage, and analysis of research peptides.</description>
      <guid>https://polypeptides.store/blog/research-peptides-guide</guid>
      <pubDate>Sat, 30 May 2026 00:00:00 +0000</pubDate>
      <category>Blog</category>
    </item>
    <item>
      <title>Pramiracetam HCl — Cognitive</title>
      <link>https://polypeptides.store/product/pramiracetam-hcl</link>
      <description>Pramiracetam HCl — research-grade cognitive compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/pramiracetam-hcl</guid>
      <pubDate>Tue, 19 May 2026 06:33:11 +0000</pubDate>
      <category>Cognitive</category>
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    <item>
      <title>Spermidine 3HCl — Longevity</title>
      <link>https://polypeptides.store/product/spermidine-3hcl</link>
      <description>Spermidine 3HCl — research-grade longevity compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/spermidine-3hcl</guid>
      <pubDate>Tue, 19 May 2026 06:33:11 +0000</pubDate>
      <category>Longevity</category>
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    <item>
      <title>PPAP HCl — Cognitive</title>
      <link>https://polypeptides.store/product/ppap-hcl</link>
      <description>PPAP HCl — research-grade cognitive compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/ppap-hcl</guid>
      <pubDate>Tue, 19 May 2026 06:33:11 +0000</pubDate>
      <category>Cognitive</category>
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    <item>
      <title>Tetramethoxyluteolin — Healing &amp; Recovery</title>
      <link>https://polypeptides.store/product/tetramethoxyluteolin</link>
      <description>Tetramethoxyluteolin — research-grade healing &amp;amp; recovery compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/tetramethoxyluteolin</guid>
      <pubDate>Tue, 19 May 2026 06:33:11 +0000</pubDate>
      <category>Healing &amp; Recovery</category>
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    <item>
      <title>Piracetam — Cognitive</title>
      <link>https://polypeptides.store/product/piracetam</link>
      <description>Piracetam — research-grade cognitive compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/piracetam</guid>
      <pubDate>Tue, 19 May 2026 06:28:26 +0000</pubDate>
      <category>Cognitive</category>
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    <item>
      <title>KW-6356 — Niche / Rare</title>
      <link>https://polypeptides.store/product/kw-6356</link>
      <description>KW-6356 — research-grade niche / rare compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/kw-6356</guid>
      <pubDate>Tue, 19 May 2026 06:28:26 +0000</pubDate>
      <category>Niche / Rare</category>
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    <item>
      <title>Alpha mannans — Immune</title>
      <link>https://polypeptides.store/product/alpha-mannans</link>
      <description>Alpha mannans — research-grade immune compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/alpha-mannans</guid>
      <pubDate>Tue, 19 May 2026 06:28:26 +0000</pubDate>
      <category>Immune</category>
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    <item>
      <title>ACD856 — Cognitive</title>
      <link>https://polypeptides.store/product/acd856</link>
      <description>ACD856 — research-grade cognitive compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/acd856</guid>
      <pubDate>Tue, 19 May 2026 06:28:26 +0000</pubDate>
      <category>Cognitive</category>
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    <item>
      <title>Oxiracetam — Cognitive</title>
      <link>https://polypeptides.store/product/oxiracetam</link>
      <description>Oxiracetam — research-grade cognitive compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/oxiracetam</guid>
      <pubDate>Tue, 19 May 2026 06:28:26 +0000</pubDate>
      <category>Cognitive</category>
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    <item>
      <title>Cordycepin — Longevity</title>
      <link>https://polypeptides.store/product/cordycepin</link>
      <description>Cordycepin — research-grade longevity compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/cordycepin</guid>
      <pubDate>Tue, 19 May 2026 06:28:26 +0000</pubDate>
      <category>Longevity</category>
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    <item>
      <title>Phenylpiracetam — Cognitive</title>
      <link>https://polypeptides.store/product/phenylpiracetam</link>
      <description>Phenylpiracetam — research-grade cognitive compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/phenylpiracetam</guid>
      <pubDate>Tue, 19 May 2026 06:28:26 +0000</pubDate>
      <category>Cognitive</category>
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    </item>
    <item>
      <title>Oleoylethanolamide — Weight Management</title>
      <link>https://polypeptides.store/product/oleoylethanolamide</link>
      <description>Oleoylethanolamide — research-grade weight management compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/oleoylethanolamide</guid>
      <pubDate>Tue, 19 May 2026 06:28:26 +0000</pubDate>
      <category>Weight Management</category>
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    </item>
    <item>
      <title>Mirodenafil — Sexual Health</title>
      <link>https://polypeptides.store/product/mirodenafil</link>
      <description>Mirodenafil — research-grade sexual health compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/mirodenafil</guid>
      <pubDate>Tue, 19 May 2026 06:28:26 +0000</pubDate>
      <category>Sexual Health</category>
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    </item>
    <item>
      <title>Agmatine sulfate — Healing &amp; Recovery</title>
      <link>https://polypeptides.store/product/agmatine-sulfate</link>
      <description>Agmatine sulfate — research-grade healing &amp;amp; recovery compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/agmatine-sulfate</guid>
      <pubDate>Tue, 19 May 2026 06:28:26 +0000</pubDate>
      <category>Healing &amp; Recovery</category>
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    </item>
    <item>
      <title>Thiamine HCl — Cognitive</title>
      <link>https://polypeptides.store/product/thiamine-hcl</link>
      <description>Thiamine HCl — research-grade cognitive compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/thiamine-hcl</guid>
      <pubDate>Tue, 19 May 2026 06:11:05 +0000</pubDate>
      <category>Cognitive</category>
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    </item>
    <item>
      <title>Urolithin B — Longevity</title>
      <link>https://polypeptides.store/product/urolithin-b</link>
      <description>Urolithin B — research-grade longevity compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/urolithin-b</guid>
      <pubDate>Tue, 19 May 2026 06:11:05 +0000</pubDate>
      <category>Longevity</category>
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    </item>
    <item>
      <title>Tropisetron HCl — Cognitive</title>
      <link>https://polypeptides.store/product/tropisetron-hcl</link>
      <description>Tropisetron HCl — research-grade cognitive compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/tropisetron-hcl</guid>
      <pubDate>Tue, 19 May 2026 06:11:05 +0000</pubDate>
      <category>Cognitive</category>
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    </item>
    <item>
      <title>Usmarapride Oxalate — Niche / Rare</title>
      <link>https://polypeptides.store/product/usmarapride-oxalate</link>
      <description>Usmarapride Oxalate — research-grade niche / rare compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/usmarapride-oxalate</guid>
      <pubDate>Tue, 19 May 2026 06:11:05 +0000</pubDate>
      <category>Niche / Rare</category>
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    </item>
    <item>
      <title>TAK-653 — Cognitive</title>
      <link>https://polypeptides.store/product/tak-653</link>
      <description>TAK-653 — research-grade cognitive compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/tak-653</guid>
      <pubDate>Tue, 19 May 2026 06:11:05 +0000</pubDate>
      <category>Cognitive</category>
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    </item>
    <item>
      <title>Sarcosine — Cognitive</title>
      <link>https://polypeptides.store/product/sarcosine</link>
      <description>Sarcosine — research-grade cognitive compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/sarcosine</guid>
      <pubDate>Tue, 19 May 2026 06:11:05 +0000</pubDate>
      <category>Cognitive</category>
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    </item>
    <item>
      <title>Vilon Acetate — Peptide Bioregulators</title>
      <link>https://polypeptides.store/product/vilon-acetate</link>
      <description>Vilon Acetate — research-grade peptide bioregulators compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/vilon-acetate</guid>
      <pubDate>Tue, 19 May 2026 06:11:05 +0000</pubDate>
      <category>Peptide Bioregulators</category>
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    </item>
    <item>
      <title>Seltorexant — Sleep</title>
      <link>https://polypeptides.store/product/seltorexant</link>
      <description>Seltorexant — research-grade sleep compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/seltorexant</guid>
      <pubDate>Tue, 19 May 2026 06:11:05 +0000</pubDate>
      <category>Sleep</category>
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    </item>
    <item>
      <title>Vesugen Acetate — Peptide Bioregulators</title>
      <link>https://polypeptides.store/product/vesugen-acetate</link>
      <description>Vesugen Acetate — research-grade peptide bioregulators compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/vesugen-acetate</guid>
      <pubDate>Tue, 19 May 2026 06:11:05 +0000</pubDate>
      <category>Peptide Bioregulators</category>
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    </item>
    <item>
      <title>Neboglamine — Cognitive</title>
      <link>https://polypeptides.store/product/neboglamine</link>
      <description>Neboglamine — research-grade cognitive compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/neboglamine</guid>
      <pubDate>Tue, 19 May 2026 06:03:34 +0000</pubDate>
      <category>Cognitive</category>
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    </item>
    <item>
      <title>Palmitoylethanolamide — Healing &amp; Recovery</title>
      <link>https://polypeptides.store/product/palmitoylethanolamide</link>
      <description>Palmitoylethanolamide — research-grade healing &amp;amp; recovery compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/palmitoylethanolamide</guid>
      <pubDate>Tue, 19 May 2026 06:03:34 +0000</pubDate>
      <category>Healing &amp; Recovery</category>
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    </item>
    <item>
      <title>Roxadustat — Niche / Rare</title>
      <link>https://polypeptides.store/product/roxadustat</link>
      <description>Roxadustat — research-grade niche / rare compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/roxadustat</guid>
      <pubDate>Tue, 19 May 2026 06:03:34 +0000</pubDate>
      <category>Niche / Rare</category>
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    </item>
    <item>
      <title>Noopept — Cognitive</title>
      <link>https://polypeptides.store/product/noopept</link>
      <description>Noopept — research-grade cognitive compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/noopept</guid>
      <pubDate>Tue, 19 May 2026 06:03:34 +0000</pubDate>
      <category>Cognitive</category>
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    </item>
    <item>
      <title>PQQ Disodium Salt — Longevity</title>
      <link>https://polypeptides.store/product/pqq-disodium-salt</link>
      <description>PQQ Disodium Salt — research-grade longevity compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/pqq-disodium-salt</guid>
      <pubDate>Tue, 19 May 2026 06:03:34 +0000</pubDate>
      <category>Longevity</category>
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    </item>
    <item>
      <title>Salicin — Niche / Rare</title>
      <link>https://polypeptides.store/product/salicin</link>
      <description>Salicin — research-grade niche / rare compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/salicin</guid>
      <pubDate>Tue, 19 May 2026 06:03:34 +0000</pubDate>
      <category>Niche / Rare</category>
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    </item>
    <item>
      <title>NADH — Longevity</title>
      <link>https://polypeptides.store/product/nadh</link>
      <description>NADH — research-grade longevity compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/nadh</guid>
      <pubDate>Tue, 19 May 2026 06:03:34 +0000</pubDate>
      <category>Longevity</category>
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    </item>
    <item>
      <title>ORG-43902 — Niche / Rare</title>
      <link>https://polypeptides.store/product/org-43902</link>
      <description>ORG-43902 — research-grade niche / rare compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/org-43902</guid>
      <pubDate>Tue, 19 May 2026 06:03:34 +0000</pubDate>
      <category>Niche / Rare</category>
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    </item>
    <item>
      <title>PP405 — Skin &amp; Pigmentation</title>
      <link>https://polypeptides.store/product/pp405</link>
      <description>PP405 — research-grade skin &amp;amp; pigmentation compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/pp405</guid>
      <pubDate>Tue, 19 May 2026 06:03:34 +0000</pubDate>
      <category>Skin &amp; Pigmentation</category>
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    </item>
    <item>
      <title>NSI-189 Freebase — Cognitive</title>
      <link>https://polypeptides.store/product/nsi-189-freebase</link>
      <description>NSI-189 Freebase — research-grade cognitive compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/nsi-189-freebase</guid>
      <pubDate>Tue, 19 May 2026 06:03:34 +0000</pubDate>
      <category>Cognitive</category>
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    </item>
    <item>
      <title>Lemairamin — Niche / Rare</title>
      <link>https://polypeptides.store/product/lemairamin</link>
      <description>Lemairamin — research-grade niche / rare compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/lemairamin</guid>
      <pubDate>Tue, 19 May 2026 05:52:57 +0000</pubDate>
      <category>Niche / Rare</category>
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    </item>
    <item>
      <title>GB-115 — Niche / Rare</title>
      <link>https://polypeptides.store/product/gb-115</link>
      <description>GB-115 — research-grade niche / rare compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/gb-115</guid>
      <pubDate>Tue, 19 May 2026 05:52:57 +0000</pubDate>
      <category>Niche / Rare</category>
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    </item>
    <item>
      <title>LGD-4033 — Niche / Rare</title>
      <link>https://polypeptides.store/product/lgd-4033</link>
      <description>LGD-4033 — research-grade niche / rare compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/lgd-4033</guid>
      <pubDate>Tue, 19 May 2026 05:52:57 +0000</pubDate>
      <category>Niche / Rare</category>
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    </item>
    <item>
      <title>Glycine — Niche / Rare</title>
      <link>https://polypeptides.store/product/glycine</link>
      <description>Glycine — research-grade niche / rare compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/glycine</guid>
      <pubDate>Tue, 19 May 2026 05:52:57 +0000</pubDate>
      <category>Niche / Rare</category>
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    </item>
    <item>
      <title>Fasoracetam — Cognitive</title>
      <link>https://polypeptides.store/product/fasoracetam</link>
      <description>Fasoracetam — research-grade cognitive compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/fasoracetam</guid>
      <pubDate>Tue, 19 May 2026 05:52:57 +0000</pubDate>
      <category>Cognitive</category>
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    </item>
    <item>
      <title>ITPP hexasodium — Niche / Rare</title>
      <link>https://polypeptides.store/product/itpp-hexasodium</link>
      <description>ITPP hexasodium — research-grade niche / rare compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/itpp-hexasodium</guid>
      <pubDate>Tue, 19 May 2026 05:52:57 +0000</pubDate>
      <category>Niche / Rare</category>
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    </item>
    <item>
      <title>J-147 — Cognitive</title>
      <link>https://polypeptides.store/product/j-147</link>
      <description>J-147 — research-grade cognitive compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/j-147</guid>
      <pubDate>Tue, 19 May 2026 05:52:57 +0000</pubDate>
      <category>Cognitive</category>
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    </item>
    <item>
      <title>Magnesium acetate — Water &amp; Solvents</title>
      <link>https://polypeptides.store/product/magnesium-acetate</link>
      <description>Magnesium acetate — research-grade water &amp;amp; solvents compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/magnesium-acetate</guid>
      <pubDate>Tue, 19 May 2026 05:52:57 +0000</pubDate>
      <category>Water &amp; Solvents</category>
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    </item>
    <item>
      <title>MK-677 — Niche / Rare</title>
      <link>https://polypeptides.store/product/mk-677</link>
      <description>MK-677 — research-grade niche / rare compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/mk-677</guid>
      <pubDate>Tue, 19 May 2026 05:52:57 +0000</pubDate>
      <category>Niche / Rare</category>
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    </item>
    <item>
      <title>MEPB — Niche / Rare</title>
      <link>https://polypeptides.store/product/mepb</link>
      <description>MEPB — research-grade niche / rare compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/mepb</guid>
      <pubDate>Tue, 19 May 2026 05:52:57 +0000</pubDate>
      <category>Niche / Rare</category>
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    </item>
    <item>
      <title>ATX-304 — Niche / Rare</title>
      <link>https://polypeptides.store/product/atx-304</link>
      <description>ATX-304 — research-grade niche / rare compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/atx-304</guid>
      <pubDate>Tue, 19 May 2026 05:46:34 +0000</pubDate>
      <category>Niche / Rare</category>
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    </item>
    <item>
      <title>BPN14770 — Cognitive</title>
      <link>https://polypeptides.store/product/bpn14770</link>
      <description>BPN14770 — research-grade cognitive compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/bpn14770</guid>
      <pubDate>Tue, 19 May 2026 05:46:34 +0000</pubDate>
      <category>Cognitive</category>
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    </item>
    <item>
      <title>(RAC)-AF710B — Cognitive</title>
      <link>https://polypeptides.store/product/rac-af710b</link>
      <description>(RAC)-AF710B — research-grade cognitive compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/rac-af710b</guid>
      <pubDate>Tue, 19 May 2026 05:46:34 +0000</pubDate>
      <category>Cognitive</category>
      <enclosure url="https://agasesqgabuejlzrvswl.supabase.co/storage/v1/object/public/product-photos/rac-af710b.png" type="image/png" />
    </item>
    <item>
      <title>Aniracetam — Cognitive</title>
      <link>https://polypeptides.store/product/aniracetam</link>
      <description>Aniracetam — research-grade cognitive compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/aniracetam</guid>
      <pubDate>Tue, 19 May 2026 05:46:34 +0000</pubDate>
      <category>Cognitive</category>
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    </item>
    <item>
      <title>ABT-089 HCl — Cognitive</title>
      <link>https://polypeptides.store/product/abt-089-hcl</link>
      <description>ABT-089 HCl — research-grade cognitive compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/abt-089-hcl</guid>
      <pubDate>Tue, 19 May 2026 05:46:34 +0000</pubDate>
      <category>Cognitive</category>
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    </item>
    <item>
      <title>Coluracetam — Cognitive</title>
      <link>https://polypeptides.store/product/coluracetam</link>
      <description>Coluracetam — research-grade cognitive compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/coluracetam</guid>
      <pubDate>Tue, 19 May 2026 05:46:34 +0000</pubDate>
      <category>Cognitive</category>
      <enclosure url="https://agasesqgabuejlzrvswl.supabase.co/storage/v1/object/public/product-photos/coluracetam.png" type="image/png" />
    </item>
    <item>
      <title>Androstadienone — Niche / Rare</title>
      <link>https://polypeptides.store/product/androstadienone</link>
      <description>Androstadienone — research-grade niche / rare compound. Available at Polypeptides.</description>
      <guid>https://polypeptides.store/product/androstadienone</guid>
      <pubDate>Tue, 19 May 2026 05:46:34 +0000</pubDate>
      <category>Niche / Rare</category>
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