Blog

Research updates, vendor news, and compound reference guides from the Pure Chain Aminos team. All content is provided for laboratory research purposes only and is not intended as guidance for human or animal use.

Latest News

• Inside the Peptide “Gold Rush”: What $164 Billion in Market Growth Means for Research Buyers
• The FDA Just Voted to Bring Back Six Peptides
• How to Read a COA. And Catch a Fake One.
• The 2026 FDA Peptide Crackdown, Decoded

Vendor Comparisons

• Pure Chain Aminos vs Cernum Biosciences: A Research Vendor Comparison
• Pure Chain Aminos vs Biotech Peptides: A Research Vendor Comparison
• Pure Chain Aminos vs Peptide Vault Labs: A Research Vendor Comparison
• Pure Chain Aminos vs Verified Peptides: A Research Vendor Comparison
• Pure Chain Aminos vs Swiss Chems: A Research Vendor Comparison
• Pure Chain Aminos vs Science.bio (Closed): Vendor Comparison and Migration Guide
• Pure Chain Aminos vs Amino Asylum (Closed): Vendor Comparison and Migration Guide
• Pure Chain Aminos vs Peptide Sciences (Closed): Vendor Comparison and Migration Guide
• Pure Chain Aminos vs Ascension Peptides: A Research Vendor Comparison
• Pure Chain Aminos vs Loti Labs: A Research Vendor Comparison
• Pure Chain Aminos vs Pure Rawz: A Research Vendor Comparison
• Pure Chain Aminos vs Modern Aminos: A Research Vendor Comparison
• Pure Chain Aminos vs Limitless Life Nootropics: A Research Vendor Comparison
• Pure Chain Aminos vs Blue Sky Peptide: A Research Vendor Comparison
• Pure Chain Aminos vs Core Peptides: A Research Vendor Comparison
• Pure Chain Aminos vs Apex Peptides: A Research Vendor Comparison

Vendor News & Shutdowns

• What Happened to Science.bio? Background on the January 2026 Closure
• Science.bio Shut Down: What Researchers Need to Know (January 2026)
• Science.bio Coupon Codes (No Longer Active) — Use This Instead
• What Happened to Amino Asylum? Full Background on the 2025 FDA Action
• Amino Asylum Shut Down: What Happened in the June 2025 FDA Raid
• Amino Asylum Coupon Codes (No Longer Active) — Use This Instead
• What Happened to Peptide Sciences? Full Background on the March 2026 Shutdown
• Peptide Sciences Shut Down: What Researchers Need to Know (March 2026)
• Peptide Sciences Coupon Codes (No Longer Active) — Use This Instead
• Xcel Peptides Alternative After the December 2024 FDA Letter
• Prime Peptides Alternative After the December 2024 FDA Action
• Summit Research Peptides Alternative After the December 2024 FDA Warning Letter
• FDA Warning Letters to Peptide Vendors (December 2024): What Researchers Should Know

Compound Research Guides

• Semax: Mechanism, Research Background, and Laboratory Use
• Selank: Mechanism, Research Background, and Laboratory Use
• KPV: Mechanism, Research Background, and Laboratory Use
• Epitalon: Mechanism, Research Background, and Laboratory Use
• BPC-157: Mechanism, Research Background, and Laboratory Use
• TB-500 (Thymosin Beta-4 Fragment): Mechanism and Laboratory Research Background
• NAD+ (Nicotinamide Adenine Dinucleotide): Mechanism and Laboratory Research Background
• MOTS-c: Mitochondrial-Derived Peptide Mechanism and Laboratory Research Notes
• Retatrutide: Mechanism, Triple-Agonist Background, and Laboratory Research Notes
• GLP2-T (Tirzepatide-Class) Research Peptides: Mechanism and Laboratory Background
• GLP-3 Receptor Research Peptides (Retatrutide-Class): Mechanism and Laboratory Background
• Bacteriostatic Water and Peptide Reconstitution: A Laboratory Reference Guide
• Ipamorelin: Mechanism, Research Background, and Laboratory Use
• GHK-Cu: Mechanism, Research Background, and Laboratory Use
• Tesamorelin: Mechanism, Research Background, and Laboratory Use
• CJC-1295: Mechanism, Research Background, and Laboratory Use
• Sermorelin: Mechanism, Research Background, and Laboratory Use

Compound Comparisons

• BPC-157 vs TB-500: Healing Peptide Research Comparison
• GLP2-T vs GLP3-R: Dual-Agonist vs Triple-Agonist Research Peptide Comparison
• Ipamorelin vs CJC-1295: GH-Releasing Peptide Research Comparison
• Tesamorelin vs Ipamorelin: GHRH vs GHRP Research Comparison
• MOTS-c vs SS-31: Mitochondrial Research Peptide Comparison
• NAD+ vs Glutathione: Longevity Pathway Research Comparison

Buyer Resources

• Peptides for Pets: What the Research Actually Shows (and What It Doesn’t)
• BPC-157 for Dogs: What Pet Owners Are Asking, and What the Evidence Actually Supports
• How to Evaluate a Research Peptide Vendor: A Buyer’s Framework
• Best Research Peptide Companies for 2026: Vendor Comparison Guide
• Why Pure Chain Aminos: A Research Vendor Built Around COA Transparency