https://apxlabs.shop/ APX Labs supplies research-grade peptides — third-party tested by HPLC/MS, lot-tracked, and shipped with a batch-specific Certificate of Analysis. For laboratory research use only. en-us Fri, 18 Sep 2026 17:00:49 +0000 https://apxlabs.shop/research/bpc-157-vs-tb-500/ https://apxlabs.shop/research/bpc-157-vs-tb-500/ Fri, 18 Sep 2026 17:00:49 +0000 Research notes The two most-requested recovery-category peptides are structurally unrelated and studied through different pathways. Here is the side-by-side, with sources. https://apxlabs.shop/research/how-to-read-a-peptide-coa/ https://apxlabs.shop/research/how-to-read-a-peptide-coa/ Fri, 18 Sep 2026 17:00:49 +0000 Research notes Every APX Labs order ships with a batch-specific COA. This is how to read it — and how to tell a real one from a decorative one. https://apxlabs.shop/research/how-to-reconstitute-peptides/ https://apxlabs.shop/research/how-to-reconstitute-peptides/ Fri, 18 Sep 2026 17:00:49 +0000 Research notes Lyophilized peptides arrive as a dry cake in a sealed vial. Turning that into a solution of known concentration is simple, but the details protect the material. https://apxlabs.shop/research/what-does-research-use-only-mean/ https://apxlabs.shop/research/what-does-research-use-only-mean/ Fri, 18 Sep 2026 17:00:49 +0000 Research notes Every product on this site carries the same designation. Here is what it means legally and practically, without the hedging. https://apxlabs.shop/research/glp1-vs-glp1-gip-dual-agonist/ https://apxlabs.shop/research/glp1-vs-glp1-gip-dual-agonist/ Fri, 18 Sep 2026 17:00:49 +0000 Research notes Single-receptor incretin agonism has a two-decade literature; dual agonism has rewritten part of it in five years. Here is the comparison for researchers. https://apxlabs.shop/research/semax-vs-selank/ https://apxlabs.shop/research/semax-vs-selank/ Fri, 18 Sep 2026 17:00:49 +0000 Research notes They share a country of origin, a length and a stabilising tail — and almost nothing else. Here is how the research literature separates them. https://apxlabs.shop/research/peptide-storage-guide/ https://apxlabs.shop/research/peptide-storage-guide/ Fri, 18 Sep 2026 17:00:49 +0000 Research notes Peptides degrade by hydrolysis, oxidation and aggregation. Cold, dark and dry slow all three. The practical rules, by format. https://apxlabs.shop/research/what-is-hplc-ms-purity-testing/ https://apxlabs.shop/research/what-is-hplc-ms-purity-testing/ Fri, 18 Sep 2026 17:00:49 +0000 Research notes Two techniques, two questions. HPLC asks how much; mass spectrometry asks what. A COA that answers only one is half a COA. https://apxlabs.shop/research/ghrh-analogs-explained/ https://apxlabs.shop/research/ghrh-analogs-explained/ Fri, 18 Sep 2026 17:00:49 +0000 Research notes Native growth-hormone-releasing hormone lasts minutes. Two very different engineering answers to that problem are in the APX Labs catalog. https://apxlabs.shop/research/peptide-vial-vs-pen-format/ https://apxlabs.shop/research/peptide-vial-vs-pen-format/ Fri, 18 Sep 2026 17:00:49 +0000 Research notes Nine catalog compounds ship as vials, five as pens. The choice is about flexibility versus consistency, not quality. https://apxlabs.shop/research/multi-peptide-blends-explained/ https://apxlabs.shop/research/multi-peptide-blends-explained/ Fri, 18 Sep 2026 17:00:49 +0000 Research notes A blend is not a new molecule. It is two or more compounds held at a fixed ratio so a series can vary one thing at a time. https://apxlabs.shop/products/bpc-157/ https://apxlabs.shop/products/bpc-157/ Fri, 18 Sep 2026 17:00:49 +0000 Recovery & Repair Body-protection compound referenced in tissue-repair and recovery research. A synthetic pentadecapeptide referenced in tissue-repair and recovery research. Supplied lyophilized and lot-tracked, with a batch-specific Certificate of Analysis. https://apxlabs.shop/products/tb-500/ https://apxlabs.shop/products/tb-500/ Fri, 18 Sep 2026 17:00:49 +0000 Recovery & Repair Thymosin beta-4 fragment referenced in recovery and mobility research. A thymosin beta-4 fragment referenced in recovery and cell-migration research. Supplied lyophilized and lot-tracked, with a batch-specific Certificate of Analysis. https://apxlabs.shop/products/kpv/ https://apxlabs.shop/products/kpv/ Fri, 18 Sep 2026 17:00:49 +0000 Recovery & Repair α-MSH tripeptide fragment referenced in inflammation and repair research. A tripeptide fragment of α-MSH referenced in inflammation and repair-related research. Supplied lyophilized and lot-tracked, with a batch-specific Certificate of Analysis. https://apxlabs.shop/products/bpc-157-tb-500-blend/ https://apxlabs.shop/products/bpc-157-tb-500-blend/ Fri, 18 Sep 2026 17:00:49 +0000 Recovery & Repair Pre-filled dual blend combining BPC-157 and TB-500 in one lot-tracked research pen. A pre-filled research pen combining BPC-157 and TB-500 in a single dual blend. Lot-tracked and shipped with a batch-specific Certificate of Analysis. https://apxlabs.shop/products/cjc-1295/ https://apxlabs.shop/products/cjc-1295/ Fri, 18 Sep 2026 17:00:49 +0000 Growth & Performance GHRH analog referenced in growth-hormone pathway research. A GHRH analog referenced in growth-hormone pathway research. Supplied lyophilized and lot-tracked, with a batch-specific Certificate of Analysis. https://apxlabs.shop/products/igf-1-lr3/ https://apxlabs.shop/products/igf-1-lr3/ Fri, 18 Sep 2026 17:00:49 +0000 Growth & Performance Long-acting IGF-1 analog referenced in cell-growth and metabolism research. A long-acting IGF-1 analog referenced in cell-growth and metabolism research. Supplied lyophilized and lot-tracked, with a batch-specific Certificate of Analysis. https://apxlabs.shop/products/tesamorelin/ https://apxlabs.shop/products/tesamorelin/ Fri, 18 Sep 2026 17:00:49 +0000 Growth & Performance Stabilized GHRH analog referenced in metabolism and growth research. A stabilized GHRH analog referenced in metabolism and growth research. Supplied lyophilized and lot-tracked, with a batch-specific Certificate of Analysis. https://apxlabs.shop/products/semax/ https://apxlabs.shop/products/semax/ Fri, 18 Sep 2026 17:00:49 +0000 Cognition & Focus Heptapeptide referenced in attention and neuroprotection research. A heptapeptide referenced in attention and neuroprotection research. Supplied lyophilized and lot-tracked, with a batch-specific Certificate of Analysis. https://apxlabs.shop/products/selank/ https://apxlabs.shop/products/selank/ Fri, 18 Sep 2026 17:00:49 +0000 Cognition & Focus Heptapeptide referenced in cognition and stress-response research. A synthetic heptapeptide referenced in cognition and stress-response research. Supplied lyophilized and lot-tracked, with a batch-specific Certificate of Analysis. https://apxlabs.shop/products/ghk-cu/ https://apxlabs.shop/products/ghk-cu/ Fri, 18 Sep 2026 17:00:49 +0000 Regeneration Copper-binding tripeptide referenced in skin, structure, and regeneration research. A copper-binding tripeptide referenced in skin, structure, and regeneration research. Supplied lyophilized and lot-tracked, with a batch-specific Certificate of Analysis. https://apxlabs.shop/products/nad-b12/ https://apxlabs.shop/products/nad-b12/ Fri, 18 Sep 2026 17:00:49 +0000 Regeneration Pre-filled NAD+ and vitamin B12 pen referenced in cellular-energy and methylation research. A pre-filled NAD+ and vitamin B12 research pen. Lot-tracked and shipped with a batch-specific Certificate of Analysis. https://apxlabs.shop/products/klow/ https://apxlabs.shop/products/klow/ Fri, 18 Sep 2026 17:00:49 +0000 Regeneration Pre-filled multi-peptide regeneration blend in a single lot-tracked research pen. A pre-filled multi-peptide regeneration blend in a single research pen. Lot-tracked and shipped with a batch-specific Certificate of Analysis. https://apxlabs.shop/products/glp1-r/ https://apxlabs.shop/products/glp1-r/ Fri, 18 Sep 2026 17:00:49 +0000 Metabolic Pre-filled GLP-1 receptor agonist pen referenced in metabolic and glucose-regulation research. A pre-filled GLP-1 receptor agonist research pen. Lot-tracked and shipped with a batch-specific Certificate of Analysis. https://apxlabs.shop/products/glp1-t/ https://apxlabs.shop/products/glp1-t/ Fri, 18 Sep 2026 17:00:49 +0000 Metabolic Pre-filled dual GLP-1 / GIP agonist pen referenced in metabolic research. A pre-filled dual GLP-1 / GIP receptor agonist research pen. Lot-tracked and shipped with a batch-specific Certificate of Analysis.