FREE USA SHIPPING ON ORDERS $200+

Blog

Blog.

Making peptide science accessible. Objective summaries of current literature, cellular pathways, and published laboratory studies.

In-vitro laboratory research and educational reference only.

Articles

NorCal Peptides logo over a glowing X chromosome with bright telomere caps

October 21, 2026 · 6 min read

Epithalon Research: What Scientists Are Learning About Telomeres and Cell Aging

Epithalon is a four-amino-acid peptide studied in cell, animal, and limited human research on telomeres and cellular aging. Here is what the laboratory evidence actually shows — and what it does not.

Read article →
Selank peptide research illustration showing the seven-amino-acid peptide and nervous-system signaling.

October 6, 2026 · 6 min read

Selank Peptide Research: Why Scientists Are Studying This Small Peptide and the Brain

A plain-English look at Selank, the seven-amino-acid peptide derived from tuftsin: GABA signaling, stress-response studies, animal research, limited human evidence and FDA status.

Read article →
Tesamorelin research illustration showing GHRH signaling from the hypothalamus to the pituitary gland.

October 1, 2026 · 4 min read

Tesamorelin Research: What Is It Actually Signaling?

Tesamorelin is not HGH. It is modeled after GHRH, the signal that prompts the pituitary to release growth hormone. A plain-English look at the signaling chain, what published randomized studies measured, and where the evidence stops.

Read article →
KPV peptide research illustration showing the three-amino-acid Lys-Pro-Val sequence.

September 25, 2026 · 7 min read

KPV Peptide Research: How Can Three Amino Acids Be So Interesting?

KPV is just lysine, proline and valine — the tail end of α-MSH. What researchers have studied in gut, skin, fat and liver cell models, the new 2026 work, and what is still unproven.

Read article →
GHK-Cu copper peptide research illustration showing Gly-His-Lys carrying a copper ion.

September 25, 2026 · 8 min read

GHK-Cu Research: Why Are Scientists So Interested in This Copper Peptide?

Why scientists study GHK-Cu, the copper-carrying tripeptide — collagen, tissue remodeling, skin models and what human research actually shows.

Read article →
MOTS-c peptide research — NorCal Peptides article cover showing an abstract mitochondrion render

September 23, 2026 · 7 min read

MOTS-c Peptide Research: What Are Scientists Actually Looking At?

A 16-amino-acid peptide whose instructions come from mitochondrial DNA. What the human exercise research actually measured, where the mouse data ends, and why new 2026 immune findings changed the story.

Read article →
NorCal Peptides article banner: CJC-1295 plus Ipamorelin research on growth hormone signals over a teal crystalline lattice

September 23, 2026 · 8 min read

CJC-1295 + Ipamorelin Research: Why Are Scientists Interested in These Two Peptides?

Two peptides, two different signals into the same growth-hormone system. What the human research on CJC-1295 actually showed, why DAC and No DAC are not interchangeable, and what is still unproven.

Read article →
BPC-157 and TB-500 research illustration showing tissue-repair processes studied in laboratory research

September 16, 2026 · 6 min read

BPC-157 + TB-500 Research: What Scientists Are Studying About Tissue Repair

A plain-English look at why laboratories study BPC-157 and TB-500 together, what the 2026 rat Achilles tendon comparison actually found, and what the published research still does not answer.

Read article →