12 articles & counting
The Proper Peptides Blog
Nerdy, no-fluff research guides. Learn the science, read the paperwork, order with confidence.
- Guides · 7 min read
How to Buy Research Peptides Online in the USA: A 2026 Buyer's Checklist
How to evaluate research peptide suppliers in the USA: check COAs, batch numbers, purity method, US shipping, storage and supplier transparency before you order.
Read article → - Guides · 6 min read
What Is a Peptide COA? How to Read HPLC and Mass Spec Results
Learn how to read a peptide Certificate of Analysis: HPLC purity, mass spectrometry identity, lot numbers, test dates and what a COA does not prove.
Read article → - Supplies · 6 min read
Peptide Reconstitution: Concentration Math and Solvent Questions
Understand peptide concentration math, BAC water compatibility questions and compound-specific stability requirements. Laboratory arithmetic, not dosing advice.
Read article → - Guides · 5 min read
How to Store Peptides: Lyophilized vs. Reconstituted Storage Rules
Peptide storage explained: freezer vs. fridge, light and moisture, shelf life of lyophilized powder and reconstituted vials, and shipping temperature questions.
Read article → - Recovery · 6 min read
BPC-157: What Researchers Are Studying (2026 Research Overview)
BPC-157 research overview: what the pentadecapeptide is, preclinical study areas like tissue and gut models, available strengths, storage and buying with COAs.
Read article → - Recovery · 5 min read
TB-500 vs. BPC-157: Differences, Research Areas and Why Labs Pair Them
Compare TB-500 and BPC-157 research terminology, study areas and blend-documentation questions. Preclinical findings are not established human benefits.
Read article → - Metabolic · 7 min read
Semaglutide vs. Tirzepatide vs. Retatrutide: GLP-1 Research Peptides Compared
Compare semaglutide, tirzepatide and retatrutide for research: GLP-1, GIP and glucagon receptor targets, how they differ, and buying research-grade vials with COAs.
Read article → - Growth · 6 min read
CJC-1295 (No DAC) and Ipamorelin: GH Secretagogue Research Guide
CJC-1295 no DAC and Ipamorelin explained: GHRH analog vs. ghrelin-receptor agonist, why they're studied as a blend, and comparisons with sermorelin and tesamorelin.
Read article → - Skin & Hair · 5 min read
GHK-Cu Copper Peptide: Skin, Hair and Collagen Research Explained
GHK-Cu copper peptide research overview: what the copper tripeptide is, collagen and skin-model studies, hair research interest, storage and the GLOW blend.
Read article → - Anti-Aging · 7 min read
Anti-Aging Research Peptides: NAD+, Epithalon, MOTS-c, SS-31 and More
Guide to anti-aging and longevity research compounds: NAD+, Epithalon, MOTS-c, SS-31, Thymalin and Vesugen — what each targets and how labs study them.
Read article → - Cognitive · 5 min read
Semax vs. Selank: Cognitive Research Peptides Compared
Semax vs Selank compared for researchers: origins, ACTH and tuftsin analogs, research focus on focus and stress models, plus related cognitive peptides.
Read article → - Guides · 4 min read
Wholesale Research Peptides: Private Access and Bulk-Order Planning
How wholesale research peptide pricing works at Proper Peptides: 10-vial packs, per-vial savings, mixing strengths, reorder planning and storage for bulk inventory.
Read article →