The Northern Peptides Blog
Peptide handling and storage guides, plus product news and promotions.
CJC-1295 and Ipamorelin: What the Growth Hormone Research Shows
CJC-1295 and Ipamorelin act on separate growth hormone pathways that converge at the pituitary, and research combining them reports a...
PT-141 (Bremelanotide): Mechanism and Research Overview
Unlike most sexual-health research peptides, PT-141 acts on central nervous system melanocortin receptors rather than vascular pathways. Here's how that...
GHK-Cu Explained: The Copper Peptide Behind Skin and Tissue Research
GHK-Cu shows up in more blended stacks than almost any other peptide, but rarely gets explained on its own. Here's...
Epitalon and Telomere Research: What the Evidence Actually Shows
Epitalon has one of the longest research histories of any longevity peptide, built mostly on cell-line and animal telomerase data....
Semaglutide, Tirzepatide, Retatrutide: What’s the Difference?
A receptor-level breakdown of how Semaglutide, Tirzepatide, and Retatrutide differ, and what each generation of incretin-based peptide adds to the...
Peptide Regulations in Canada: What’s Actually Changing in 2026
What's actually changing in Canadian peptide regulation in 2026, what the US reclassification news means for researchers north of the...
How to Read a Peptide Certificate of Analysis (COA)
A practical guide to reading a peptide Certificate of Analysis. What HPLC purity, identity confirmation, water content, and endotoxin testing...
Retatrutide: The Trillion Dollar Drug, Explained
Eli Lilly hit a trillion dollar valuation on the back of TRIUMPH-1's 28% weight loss readout. A breakdown of why...
Northern Peptides: Canada’s Peptide Research Standard, Explained
Northern Peptides at a glance — the catalogue, the quality standards, and the Canadian market context that explains why third-party...
Retatrutide and Cardiovascular Health: What You Need to Know
What current research shows about Retatrutide's cardiovascular and cardiometabolic profile, why the triple receptor mechanism is relevant, and what Phase...