Research Peptides Directory

Find detailed peptide profiles for Semaglutide, BPC-157, Tirzepatide, and more. Filter by category, development stage, or search by name.

Research Peptide Profiles

Development Stage
Regulatory Approval
Compounding Status

Semax

Cognition, Mood & Neuroprotection

Semax is a brain-boosting peptide that may help with focus, memory, and mental clarity. It's available as a nasal spray and is approved in Russia for neurological conditions.

Selank

Cognition, Mood & Neuroprotection

Selank is a calming peptide that may help reduce anxiety and improve mood without causing drowsiness. It's available as a nasal spray and has anti-anxiety effects similar to benzodiazepines, but without the sedation.

Dihexa

Cognition, Mood & Neuroprotection

Dihexa is a potent nootropic peptide that may dramatically enhance memory and cognitive function. It's one of the most powerful brain-boosting compounds studied, but long-term safety data is limited.

Cerebrolysin

Cognition, Mood & Neuroprotection

Cerebrolysin is a brain peptide mixture that may support brain recovery after stroke, traumatic brain injury, or dementia. It contains natural nerve growth factors that help repair brain cells.

DSIP (Delta Sleep Inducing Peptide)

Cognition, Mood & Neuroprotection

DSIP (Delta Sleep-Inducing Peptide) is a sleep peptide that may help improve sleep quality and regulate sleep-wake cycles. It's being studied for insomnia and stress-related sleep issues.

PE-22-28

Cognition, Mood & Neuroprotection

PE-22-28 is a nootropic peptide that may enhance memory and cognitive function by boosting brain-derived growth factors. It's an emerging compound in the cognitive enhancement research space.

Pinealon

Cognition, Mood & Neuroprotection

Pinealon is a short peptide that may support brain function and regulate the sleep-wake cycle by acting on the pineal gland. It's being studied for neuroprotection and age-related cognitive decline.

Cortagen

Cognition, Mood & Neuroprotection

Cortagen is a short peptide that may support brain function and protect against age-related cognitive decline. It's being studied for its effects on brain cell repair and neuroplasticity.

About the Directory

How the Research Peptides Directory Works

The PeptideWiki directory organizes research peptides into clear, evidence-based profiles covering mechanisms, dosing, safety, and research status. Browse by category, development stage, or peptide name to compare compounds across weight loss, recovery, growth hormone, cognition, longevity, and more.

Categories

Peptides are grouped by their primary research focus and biological activity, including metabolism, growth hormone signaling, tissue repair, cognition, inflammation, aesthetics, cellular health, sexual health, and endocrine function.

Development Stage

Shows how far a peptide has progressed in the research pipeline. Preclinical compounds are still in laboratory or animal models. Phase 2, 3, and 4 compounds have moved further through human research. Discontinued compounds are no longer being actively developed.

Regulatory Approval

Shows whether a peptide has been cleared by a health authority or is still limited to research. "Not Approved" means no clinical clearance. "Investigational" means still under study. "FDA Approved" means cleared in the United States for specific indications.

Compounding Status

Shows where a peptide sits in the FDA 503A and 503B compounding pathways. Cat 1 compounds are under enforcement discretion and are compoundable today. Cat 2 compounds have safety concerns flagged. Withdrawn, Not Compoundable, and Component of FDA-Approved Drug categories each reflect different regulatory histories.