pepscience

THE RESEARCH JOURNAL

Research, in context.

Explore mechanisms, study findings and the questions still open in peptide science.

59 articles · Page 2 of 5

Jul 12, 2026

What Is HCG? A Clear, Evidence-Based Guide to hCG (Human Chorionic Gonadotropin)

What is HCG? Learn what hCG does, key uses in fertility and testing, major risks, and why it’s not for weight loss—clearly explained.

Jul 12, 2026

What Is GHRP-2? Mechanism, Benefits, Risks, and Alternatives

What is GHRP-2? Evidence-based guide to pralmorelin’s mechanism, appetite effects, key FDA safety notes, and comparisons vs ipamorelin & MK-677.

Jul 12, 2026

GHK-Cu Peptide: Benefits, Uses, Side Effects, Dosage, and Research

GHK-Cu peptide guide covering skin, hair, collagen, wound research, side effects, dosage context, FDA status, and evidence limits.

Jul 12, 2026

Ipamorelin Peptide: Benefits, Uses, Side Effects, Dosage, and Research

Ipamorelin peptide guide to uses, GH release, dosage context, side effects, safety, FDA status, and evidence limits.

Jul 12, 2026

Livagen Peptide: Benefits, Uses, Side Effects, Dosage, and Research

Learn what Livagen peptide is, how it is studied in chromatin and lymphocyte research, plus evidence limits, safety, dosage context, and FDA status.

Jul 12, 2026

PNC-27 Peptide: Benefits, Uses, Side Effects, Dosage, and Research

Learn what PNC-27 peptide is, how it may interact with HDM-2, what preclinical research shows, and key safety, dosage, and FDA-status limits.

Jul 12, 2026

Retatrutide Peptide: Benefits, Uses, Side Effects, Dosage, and Research

Retatrutide peptide guide covering obesity, diabetes research, side effects, trial doses, safety, and FDA investigational status.

Jul 12, 2026

What is HGH 191AA? Evidence‑Based Guide for Peptide Beginners

What is HGH 191AA? Learn what it is (somatropin), how it works, legality, risks, and how to interpret IU vs mg without confusion.

Jul 12, 2026

Selank Peptide: Benefits, Uses, Side Effects, Dosage, and Research

Selank peptide guide covering what it is, proposed mechanisms, early human evidence, side effects, dosage context, and U.S. regulatory status.

Jul 12, 2026

What is Vesugen (Lys‑Glu‑Asp)? The Evidence‑Based Guide to KED

What is Vesugen (Lys‑Glu‑Asp)? Explore KED’s proposed vascular mechanisms, the evidence we have, key risks, and how to verify quality for research use.

Jul 12, 2026

BPC-157 Peptide: Benefits, Uses, Side Effects, Dosage, and Research

Learn what BPC-157 peptide is, how it is studied, safety risks, dosage context, human evidence, preclinical research, and FDA/WADA status.

Jul 12, 2026

KLOW Peptide: Benefits, Uses, Side Effects, Dosage, and Research

KLOW peptide guide covering benefits, safety, dosage context, research limits, side effects, and FDA regulatory status.