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
CJC-1295 with DAC
Growth Hormone / IGF-1 Axis
CJC-1295 with DAC is a long-acting growth hormone-releasing peptide that stays active in the body for days rather than hours. It provides a sustained boost to natural growth hormone production.
CJC-1295 (Modified GRF 1-29)
Growth Hormone / IGF-1 Axis
CJC-1295 is a growth hormone-releasing peptide that may boost your body's natural growth hormone production. It's often paired with Ipamorelin for enhanced effects on recovery, sleep, and body composition.
MK-677 (Ibutamoren)
Growth Hormone / IGF-1 Axis
MK-677 is an oral growth hormone booster that may improve sleep quality, increase muscle mass, and speed up recovery. Unlike most peptides, you take it as a pill instead of an injection.
Tesamorelin
Growth Hormone / IGF-1 Axis
Tesamorelin is an FDA-approved growth hormone-releasing peptide primarily used to reduce belly fat in people with HIV-related lipodystrophy. It boosts natural growth hormone production.
IGF-1 LR3
Growth Hormone / IGF-1 Axis
IGF-1 LR3 is a modified version of insulin-like growth factor 1, a natural hormone your body produces that plays a key role in muscle growth and cell repair. The modification makes it last much longer in the body (about 20–30 hours vs. 12–15 for regular IGF-1) and keeps more of it active in the bloodstream. It may promote muscle growth by stimulating protein synthesis and activating the cells responsible for building new muscle fibers. Beyond muscle, it may also support the growth and repair of cartilage, bone, and other tissues. At higher doses, IGF-1 LR3 can have insulin-like effects on blood sugar, so monitoring is important. Its extended activity and potency make it one of the strongest growth-promoting peptides studied, but it requires careful dosing.
Sermorelin
Growth Hormone / IGF-1 Axis
Sermorelin is a growth hormone-releasing peptide that stimulates your pituitary gland to produce more GH naturally. It's FDA-approved for diagnosing GH deficiency and is popular for anti-aging protocols.
Ipamorelin
Growth Hormone / IGF-1 Axis
Ipamorelin is a gentle growth hormone-releasing peptide that may improve sleep, recovery, and body composition with fewer side effects than stronger alternatives. It's considered one of the safest GH peptides.
GHRP-6
Growth Hormone / IGF-1 Axis
GHRP-6 is a growth hormone-releasing peptide that boosts your body's natural GH production and stimulates appetite. It's commonly used for muscle growth, recovery, and by those looking to increase calorie intake.
Hexarelin
Growth Hormone / IGF-1 Axis
Hexarelin is a potent growth hormone-releasing peptide that may boost GH levels more strongly than other GHRPs. It's studied for both muscle-building effects and potential heart-protective benefits.
GHRP-2
Growth Hormone / IGF-1 Axis
GHRP-2 is a growth hormone-releasing peptide similar to GHRP-6 but with less appetite stimulation. It may help improve body composition, recovery, and sleep quality.
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.