<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">

  <!-- Core pages -->
  <url><loc>https://halflife-labs.com/</loc><lastmod>2026-05-22</lastmod><changefreq>weekly</changefreq><priority>1.0</priority></url>
  <url><loc>https://halflife-labs.com/app/</loc><lastmod>2026-05-22</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://halflife-labs.com/database/</loc><lastmod>2026-05-22</lastmod><changefreq>weekly</changefreq><priority>0.9</priority></url>
  <url><loc>https://halflife-labs.com/tools/</loc><lastmod>2025-05-20</lastmod><changefreq>weekly</changefreq><priority>0.9</priority></url>
  <url><loc>https://halflife-labs.com/tools/peptide-reconstitution-calculator/</loc><lastmod>2025-05-20</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://halflife-labs.com/tools/half-life-calculator/</loc><lastmod>2025-05-20</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://halflife-labs.com/tools/glp-1-dose-escalation-calculator/</loc><lastmod>2025-05-20</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://halflife-labs.com/tools/injection-site-rotation-tracker/</loc><lastmod>2025-05-20</lastmod><changefreq>monthly</changefreq><priority>0.85</priority></url>
  <url><loc>https://halflife-labs.com/tools/peptide-stack-planner/</loc><lastmod>2025-05-20</lastmod><changefreq>monthly</changefreq><priority>0.85</priority></url>
  <url><loc>https://halflife-labs.com/insights/</loc><lastmod>2026-05-22</lastmod><changefreq>weekly</changefreq><priority>0.8</priority></url>
  <url><loc>https://halflife-labs.com/case-studies/</loc><lastmod>2026-05-22</lastmod><changefreq>weekly</changefreq><priority>0.8</priority></url>
  <url><loc>https://halflife-labs.com/partners/</loc><lastmod>2026-05-22</lastmod><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://halflife-labs.com/methodology/</loc><lastmod>2026-05-22</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://halflife-labs.com/about/</loc><lastmod>2026-05-22</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://halflife-labs.com/support/</loc><lastmod>2025-05-01</lastmod><changefreq>yearly</changefreq><priority>0.4</priority></url>
  <url><loc>https://halflife-labs.com/privacy/</loc><lastmod>2025-05-01</lastmod><changefreq>yearly</changefreq><priority>0.4</priority></url>
  <url><loc>https://halflife-labs.com/terms/</loc><lastmod>2025-05-01</lastmod><changefreq>yearly</changefreq><priority>0.4</priority></url>

  <!-- Case studies -->
  <url><loc>https://halflife-labs.com/case-studies/tirzepatide-bpc157-recomp/</loc><lastmod>2026-05-22</lastmod><changefreq>weekly</changefreq><priority>0.8</priority></url>
  <url><loc>https://halflife-labs.com/case-studies/tirzepatide-vs-semaglutide-adherence/</loc><lastmod>2026-05-22</lastmod><changefreq>weekly</changefreq><priority>0.8</priority></url>
  <url><loc>https://halflife-labs.com/case-studies/trt-cjc1295-ipamorelin/</loc><lastmod>2026-05-22</lastmod><changefreq>weekly</changefreq><priority>0.8</priority></url>
  <url><loc>https://halflife-labs.com/case-studies/nad-epitalon-longevity/</loc><lastmod>2026-05-22</lastmod><changefreq>weekly</changefreq><priority>0.8</priority></url>

  <!-- Compound pages — metabolic / GLP-1 -->
  <url><loc>https://halflife-labs.com/compounds/tirzepatide/</loc><lastmod>2025-05-01</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://halflife-labs.com/compounds/semaglutide/</loc><lastmod>2025-05-01</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://halflife-labs.com/compounds/retatrutide/</loc><lastmod>2025-05-01</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://halflife-labs.com/compounds/cagrilintide/</loc><lastmod>2025-05-01</lastmod><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://halflife-labs.com/compounds/slu-pp-332/</loc><lastmod>2025-05-01</lastmod><changefreq>monthly</changefreq><priority>0.8</priority></url>

  <!-- Compound pages — recovery peptides -->
  <url><loc>https://halflife-labs.com/compounds/bpc-157/</loc><lastmod>2025-05-01</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://halflife-labs.com/compounds/tb-500/</loc><lastmod>2025-05-01</lastmod><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://halflife-labs.com/compounds/ghk-cu/</loc><lastmod>2025-05-01</lastmod><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://halflife-labs.com/compounds/kpv/</loc><lastmod>2025-05-01</lastmod><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://halflife-labs.com/compounds/ss-31/</loc><lastmod>2025-05-01</lastmod><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://halflife-labs.com/compounds/thymosin-alpha-1/</loc><lastmod>2025-05-01</lastmod><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://halflife-labs.com/compounds/ll-37/</loc><lastmod>2025-05-01</lastmod><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://halflife-labs.com/compounds/peg-mgf/</loc><lastmod>2025-05-01</lastmod><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://halflife-labs.com/compounds/aod-9604/</loc><lastmod>2025-05-01</lastmod><changefreq>monthly</changefreq><priority>0.8</priority></url>

  <!-- Compound pages — growth hormone secretagogues -->
  <url><loc>https://halflife-labs.com/compounds/cjc-1295-no-dac/</loc><lastmod>2025-05-01</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://halflife-labs.com/compounds/cjc-1295-dac/</loc><lastmod>2025-05-01</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://halflife-labs.com/compounds/ipamorelin/</loc><lastmod>2025-05-01</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://halflife-labs.com/compounds/ghrp-6/</loc><lastmod>2025-05-01</lastmod><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://halflife-labs.com/compounds/ghrp-2/</loc><lastmod>2025-05-01</lastmod><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://halflife-labs.com/compounds/tesamorelin/</loc><lastmod>2025-05-01</lastmod><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://halflife-labs.com/compounds/hgh/</loc><lastmod>2025-05-01</lastmod><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://halflife-labs.com/compounds/igf-1/</loc><lastmod>2025-05-01</lastmod><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://halflife-labs.com/compounds/igf-1-lr3/</loc><lastmod>2025-05-01</lastmod><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://halflife-labs.com/compounds/mk-677/</loc><lastmod>2025-05-01</lastmod><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://halflife-labs.com/compounds/sermorelin/</loc><lastmod>2025-05-01</lastmod><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://halflife-labs.com/compounds/hexarelin/</loc><lastmod>2025-05-01</lastmod><changefreq>monthly</changefreq><priority>0.8</priority></url>

  <!-- Compound pages — TRT -->
  <url><loc>https://halflife-labs.com/compounds/testosterone-cypionate/</loc><lastmod>2025-05-01</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://halflife-labs.com/compounds/testosterone-enanthate/</loc><lastmod>2025-05-01</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://halflife-labs.com/compounds/gonadorelin/</loc><lastmod>2025-05-01</lastmod><changefreq>monthly</changefreq><priority>0.8</priority></url>

  <!-- Compound pages — insulin -->
  <url><loc>https://halflife-labs.com/compounds/insulin-rapid/</loc><lastmod>2025-05-01</lastmod><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://halflife-labs.com/compounds/insulin-regular/</loc><lastmod>2025-05-01</lastmod><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://halflife-labs.com/compounds/insulin-nph/</loc><lastmod>2025-05-01</lastmod><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://halflife-labs.com/compounds/insulin-glargine/</loc><lastmod>2025-05-01</lastmod><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://halflife-labs.com/compounds/insulin-detemir/</loc><lastmod>2025-05-01</lastmod><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://halflife-labs.com/compounds/insulin-degludec/</loc><lastmod>2025-05-01</lastmod><changefreq>monthly</changefreq><priority>0.8</priority></url>

  <!-- Compound pages — nootropic -->
  <url><loc>https://halflife-labs.com/compounds/semax/</loc><lastmod>2025-05-01</lastmod><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://halflife-labs.com/compounds/selank/</loc><lastmod>2025-05-01</lastmod><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://halflife-labs.com/compounds/dsip/</loc><lastmod>2025-05-01</lastmod><changefreq>monthly</changefreq><priority>0.8</priority></url>

  <!-- Compound pages — longevity -->
  <url><loc>https://halflife-labs.com/compounds/epitalon/</loc><lastmod>2025-05-01</lastmod><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://halflife-labs.com/compounds/mots-c/</loc><lastmod>2025-05-01</lastmod><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://halflife-labs.com/compounds/nad-injectable/</loc><lastmod>2025-05-01</lastmod><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://halflife-labs.com/compounds/5-amino-1mq/</loc><lastmod>2025-05-01</lastmod><changefreq>monthly</changefreq><priority>0.8</priority></url>

  <!-- Compound pages — sexual health -->
  <url><loc>https://halflife-labs.com/compounds/oxytocin/</loc><lastmod>2025-05-01</lastmod><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://halflife-labs.com/compounds/pt-141/</loc><lastmod>2025-05-01</lastmod><changefreq>monthly</changefreq><priority>0.8</priority></url>

</urlset>
