Prof. Peptide
Research Comparisons

Comparisons

Side-by-side research breakdowns to help you understand the differences between commonly compared peptides and supplements.

Recovery

BPC-157 vs TB-500

Recovery peptide comparison — mechanism, tissue targets, and how to choose between them.

Metabolic

Semaglutide vs Tirzepatide

GLP-1 comparison — weight loss data, FDA status, and head-to-head clinical trial results.

Metabolic

Semaglutide vs Tirzepatide vs Retatrutide

Three generations of GLP-1 peptides compared — single, dual, and triple agonist side by side.

Metabolic

Berberine vs Metformin

Blood sugar comparison — AMPK activation, clinical data, cost, and when to use each.

Longevity

NMN vs Niacin

NAD+ precursor comparison — pathways, cost, flushing, and what the research actually shows.

Performance

Creatine vs Beta-Alanine

Performance supplement comparison — explosive power vs endurance, and whether to take both.

Growth Hormone

CJC-1295 vs Sermorelin vs Ipamorelin

Growth hormone peptide comparison — GHRH analogs vs GHRP, half-lives, and stacking rationale.

Recovery

BPC-157 vs GHK-Cu

Healing peptide comparison — systemic tissue repair vs skin regeneration and gene modulation.

Adaptogens

Ashwagandha vs Rhodiola Rosea

Adaptogen comparison — chronic stress and sleep vs acute mental performance and endurance.

Longevity

NMN vs NR vs Niacin

NAD+ precursor triple comparison — pathways, cost, flushing, and 2026 head-to-head trial data.

Longevity

Epitalon vs NAD+

Longevity comparison — telomere biology vs mitochondrial metabolism, evidence quality, and cost.

Cognitive

Semax vs Selank

Cognitive peptide comparison — neuroprotection vs anxiolytic, both approved in Russia.