Research reference
Peptides, explained without the hype.
Clear summaries of what each peptide is, what the research actually shows, and where the evidence runs out.
Browse Peptide A-Z Explore by categoryFeatured references
Performance & Recovery
BPC-157
A synthetic 15-amino-acid peptide derived from a protein found in gastric juice, studied almost entirely in laboratory and animal models of tissue injury and repair.
Anti-Aging & Longevity
GHK-Cu
A naturally occurring three-amino-acid peptide that binds copper. It is best known as a cosmetic skin-care ingredient and has been studied in wound-healing and skin-remodeling research.
Weight Loss & Metabolic
Tirzepatide
An FDA-approved once-weekly injection that activates two gut-hormone receptors (GIP and GLP-1), used for type 2 diabetes and chronic weight management.
Cognitive
Semax
A synthetic seven-amino-acid peptide derived from a fragment of the hormone ACTH, developed in Russia and studied for brain protection and cognition.
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Frequently asked questions
What are peptides?
Peptides are short chains of amino acids, the building blocks of proteins. Some occur naturally in the body, and some are designed in a lab.
What does "research use only" mean?
It is a label used for compounds sold for laboratory work rather than as medicines. These products are not evaluated by regulators for safety or effectiveness in people.
Does this site sell peptides or give medical advice?
No. This is an educational reference. It does not recommend human use, dosing or sourcing, and it is not a substitute for advice from a qualified clinician.
How should I read the research summaries?
Look at the evidence level on each page. Findings from cell and animal studies often do not carry over to people, and many peptides have little or no human trial data.
About
About this reference
Activtrim Peptides is a plain-language library of peptide research summaries. The goal is to help readers understand what the published evidence does and does not support.
Pages are written for general readers, list the level of evidence, and link to primary sources where possible. Editorial and sourcing standards will be documented here.