Blog

A collection of useful articles about peptide research, safety, and purchasing. Learn about the latest trends and research in peptides.

Peptide Research Guides

Comprehensive long-form peptide guide content.

GH Secretagogues: GHRH Analogs vs Ghrelin Mimetics

GHRH analogs versus ghrelin mimetics: receptors, verified human and animal papers, and why they are not interchangeable. Research use only.

GHK-Cu Research Guide (Copper Peptide): Mechanisms, Wound Healing, Anti-Aging & Skin Regeneration

GHK-Cu Research Guide (Copper Peptide): Mechanisms, Wound Healing, Anti-Aging & Skin Regeneration

Comprehensive guide to GHK-Cu (copper peptide) - the popular research peptide for wound healing, collagen synthesis, hair growth, and anti-aging. Covers mechanism of action, clinical evidence, dosing protocols, safety, and practical applications.

Melanocortin Peptides: Afamelanotide, Melanotan II, and PT-141

Afamelanotide, Melanotan II, and PT-141 (bremelanotide): MC receptor work, EPP and HSDD trials, and what research-grade listings are not. Research use only.

Nootropic Peptides: Semax, Selank, Dihexa, and Noopept

Semax, Selank, Dihexa, and Noopept from published papers: parent peptides, BDNF and enkephalin findings, and what human studies measured. Research use only.

BPC-157: What the Preclinical Data Actually Shows (2026 Research Guide)

BPC-157: What the Preclinical Data Actually Shows (2026 Research Guide)

BPC-157 research guide: proposed mechanisms, tendon and ligament data from animal studies, the limited human evidence, safety and 2026 regulatory status.

Tirzepatide: What Dual Agonism Actually Does (2026 Research Guide)

Tirzepatide: What Dual Agonism Actually Does (2026 Research Guide)

Everything researchers need to know about tirzepatide's dual GIP/GLP-1 mechanism, SURMOUNT clinical trials, comparison to semaglutide and retatrutide, and sourcing for research.

Semaglutide: What the Clinical Data Actually Shows (2026 Research Guide)

Semaglutide: What the Clinical Data Actually Shows (2026 Research Guide)

Everything researchers need to know about semaglutide, mechanism, clinical trials (SUSTAIN, STEP, SELECT), sourcing, and what's coming next including retatrutide.

Peptide Research Protocols

Step-by-step protocols for research workflows and lab handling.

Peptide Reconstitution Protocol: The Complete Laboratory Guide (2026)

Peptide Reconstitution Protocol: The Complete Laboratory Guide (2026)

Lab protocol for reconstituting lyophilized research peptides: diluent choice, concentration math, aseptic technique, labeling, storage and troubleshooting.

Peptide Comparisons

Head-to-head analysis for evidence-based peptide selection.

GHRP-2 vs GHRP-6: Two Ghrelin-Receptor Hexapeptides

Compare GHRP-2 and GHRP-6: shared GHSR signaling in rat pituitary, species differences in cAMP, human GH-release and food-intake studies.

Ipamorelin vs CJC-1295: Ghrelin Receptor vs GHRH Receptor

Compare ipamorelin and CJC-1295: GHSR versus GHRH receptor, half-life, pulsatility, and what human and animal studies actually measured.

Selank vs Semax: Tuftsin Analog vs ACTH(4-10) Analog

Compare Selank and Semax: tuftsin analog versus ACTH fragment, enkephalinase and BDNF findings, and published clinical studies from Russian journals.

Semaglutide vs Retatrutide: GLP-1 vs Triple-Receptor Agonism

Compare semaglutide and retatrutide: GLP-1 versus GIP/GLP-1/glucagon receptors, FDA status, and STEP, SELECT, and phase 2 trial findings.

Tirzepatide vs Retatrutide: Dual vs Triple Incretin Agonism

Compare tirzepatide and retatrutide: GIP/GLP-1 vs triple agonism, FDA status, and what SURMOUNT and phase 2 retatrutide trials measured.

BPC-157 vs TB-500: Healing Peptide Comparison | Mechanistic Differences & Research Applications

BPC-157 vs TB-500: Healing Peptide Comparison | Mechanistic Differences & Research Applications

Compare BPC-157 and TB-500 for tissue repair research. Mechanisms, clinical evidence, dosing protocols, and when to use each healing peptide.

CJC-1295 with DAC vs Without DAC: Albumin Binding vs Mod GRF 1-29

Compare literature CJC-1295 (albumin-binding DAC analog) with marketplace Mod GRF 1-29: chemistry, human PK, and pulsatility from verified papers.

Ghrelin Mimetics Compared: GHRP-2, GHRP-6, Hexarelin, Ipamorelin

Compare GHRP-2, GHRP-6, hexarelin, and ipamorelin as GHSR ligands: shared receptor, ACTH/cortisol, food intake, and what human studies measured.

GHRH Analogs Compared: Sermorelin vs Tesamorelin vs CJC-1295

Compare sermorelin, tesamorelin, and CJC-1295: GHRH(1-29) vs hexenoyl-GHRH(1-44) vs albumin-binding analog, FDA status, and verified trials.

Semaglutide vs Tirzepatide: A Research Comparison (With Retatrutide Preview)

Semaglutide vs Tirzepatide: A Research Comparison (With Retatrutide Preview)

Head-to-head comparison of semaglutide vs tirzepatide from SURMOUNT-5 trial data. Mechanism differences, clinical outcomes, side effects, cost, and retatrutide pipeline preview.