Strong Evidence (Level A & B)

Peptides supported by multiple randomized controlled trials and systematic reviews

These peptides have robust clinical evidence from human studies, including RCTs and meta-analyses.

5 peptides with this evidence level

Understanding Evidence Levels

What Strong Evidence (Level A & B) Means:

• Multiple randomized controlled trials (RCTs)
• Systematic reviews and meta-analyses
• Large sample sizes with consistent results
• Published in peer-reviewed journals

What This Means for You:

These peptides have the strongest scientific support for their claimed benefits. They should still be used under medical supervision.

All peptides on Peptide Ledger, regardless of evidence level, require a prescription and should only be used under the guidance of a licensed healthcare provider.

Peptides in This Category

Compounded Semaglutide+L-Carnitine (CarniSema™)

Semaglutide + L-Carnitine

Level A

Fat Loss & Metabolism

Compounded Tirzepatide+L-Carnitine (CarniTide®)

Tirzepatide + L-Carnitine

Level A

Fat Loss & Metabolism

NAD+ Injection

NAD+

Level B

Anti-Aging & LongevityCognitive Enhancement

Sermorelin Acetate – Injection

Sermorelin Acetate

Level B

Muscle & PerformanceAnti-Aging

Thymosin Alpha-1

Level B

Immune SupportRecovery & Healing

Browse by Evidence Level

Level C

Emerging Evidence (Level C)

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Level D

Investigational (Level D)

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