Knowledge

Peptide Comparisons

The question is rarely “is this peptide good?” but “which of these two fits what I'm reading about?” Each comparison puts mechanism, evidence and safety side by side — without picking a winner where the evidence doesn't.

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Comparison

BPC-157 vs TB-500 / Thymosin Beta-4

BPC-157

Recovery / Regeneration

Evidence C — Early / Preclinical

TB-500 / Thymosin Beta-4

Recovery / Regeneration

Evidence C — Early / Preclinical
Comparison

Semaglutide vs Tirzepatide

Semaglutide

Metabolic

Evidence A — Approved / Strong

Tirzepatide

Metabolic

Evidence A — Approved / Strong
Comparison

Tirzepatide vs Retatrutide

Tirzepatide

Metabolic

Evidence A — Approved / Strong

Retatrutide

Metabolic

Evidence B — Human, limited
Comparison

Ipamorelin vs CJC-1295

Ipamorelin

Growth Hormone Secretagogue

Evidence C — Early / Preclinical

CJC-1295

Growth Hormone Secretagogue

Evidence C — Early / Preclinical
Comparison

GHRP-2 vs GHRP-6

GHRP-2

Growth Hormone Secretagogue

Evidence C — Early / Preclinical

GHRP-6

Growth Hormone Secretagogue

Evidence C — Early / Preclinical
Comparison

Semax vs Selank

Semax

Cognitive

Evidence C — Early / Preclinical

Selank

Cognitive / Mood

Evidence C — Early / Preclinical
Comparison

MOTS-c vs SS-31 (Elamipretide)

MOTS-c

Metabolic

Evidence C — Early / Preclinical

SS-31 (Elamipretide)

Mitochondrial

Evidence B — Human, limited
Comparison

Melanotan I vs Melanotan II

Melanotan I

Pigmentation

Evidence B — Human, limited

Melanotan II

Pigmentation

Evidence C — Early / Preclinical
Comparison

CJC-1295 vs Sermorelin

CJC-1295

Growth Hormone Secretagogue

Evidence C — Early / Preclinical

Sermorelin

Growth Hormone Secretagogue

Evidence C — Early / Preclinical
Comparison

IGF-1 LR3 vs MGF / PEG-MGF

IGF-1 LR3

Growth Factor

Evidence C — Early / Preclinical

MGF / PEG-MGF

Growth Factor

Evidence D — Anecdotal
Comparison

Tesamorelin vs Sermorelin

Tesamorelin

Growth Hormone Secretagogue

Evidence B — Human, limited

Sermorelin

Growth Hormone Secretagogue

Evidence C — Early / Preclinical
Comparison

Epitalon vs Thymalin

Epitalon

Longevity

Evidence D — Anecdotal

Thymalin

Immune

Evidence C — Early / Preclinical
Comparison

BPC-157 vs GHK-Cu

BPC-157

Recovery / Regeneration

Evidence C — Early / Preclinical

GHK-Cu

Skin / Cosmetic

Evidence B — Human, limited
Comparison

Kisspeptin-10 vs Gonadorelin

Kisspeptin-10

Endocrine

Evidence B — Human, limited

Gonadorelin

Endocrine

Evidence B — Human, limited
Comparison

Hexarelin vs GHRP-2

Hexarelin

Growth Hormone Secretagogue

Evidence C — Early / Preclinical

GHRP-2

Growth Hormone Secretagogue

Evidence C — Early / Preclinical
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