At a Glance
Quickcomparison
Dose Range
Apelin-13
As prescribed–As prescribed mg
BPC-157
250–500 mcg
Frequency
Once daily
Administration
Intravenous (IV)
Subcutaneous injection
Cycle Length
Ongoing/indefinite
4-6 weeks
Onset Speed
Moderate (1-2 weeks)
Evidence Level
Moderate human trials (Phase 1-2)
Strong preclinical (extensive animal studies)
Efficacy
Benefitratings
Cardiovascular Support
Heart Function & Strength
Blood Flow & Circulation
Primary Benefit
Secondary Benefit
Additional Benefit
Technical Data
Compoundspecifications
Molecular Formula
C69H111N23O16S
Molecular Weight
1550.8 Da
Half-Life
Minutes in plasma; varies by route of administration
Bioavailability
~90-95% (subcutaneous injection)
CAS Number
Not yet assigned (research compound)
C62H98N16O22
1419.53 g/mol
4-6 hours
~100% (subcutaneous)
137525-51-0
Protocols
Dosingtiers
starting
30 nmol/min
Continuous infusion
5 minutes per dose step (research setting)
Apelin-13 is a research peptide given as a short drip into a vein in studies, not by self-injection. This low rate was the first step tested in a human heart study. [4]
standard
100 nmol/min
Middle infusion rate used in the human heart study. It increased the heart's output and relaxed blood vessels. [4]
advanced
300 nmol/min
Highest infusion rate tested in the same human study, producing the strongest effect on heart output and blood pressure. [4]
250 mcg
1-2 weeks
A common starting amount in research practice, often injected near the injured area. BPC-157 has no human dose-finding trials, so doses come from animal studies and documented practice [1][2].
250-500 mcg
Twice daily
Commonly used range for tissue and tendon recovery in research practice [1][3].
500 mcg
6-8 weeks
Upper end used in practice for more demanding acute injuries [1][3].
Applications
Bestsuited for
Research into cardiovascular health and heart function
Apelin-13 is particularly well-suited for individuals focused on research into cardiovascular health and heart function. Research and clinical experience suggest meaningful benefits in this area when used as part of a comprehensive treatment approach.
Understanding how the body naturally protects the heart
Apelin-13 is particularly well-suited for individuals focused on understanding how the body naturally protects the heart. Research and clinical experience suggest meaningful benefits in this area when used as part of a comprehensive treatment approach.
Exploring potential treatments for heart failure
Apelin-13 is particularly well-suited for individuals focused on exploring potential treatments for heart failure. Research and clinical experience suggest meaningful benefits in this area when used as part of a comprehensive treatment approach.
Studying mechanisms of heart muscle strength
Apelin-13 is particularly well-suited for individuals focused on studying mechanisms of heart muscle strength. Research and clinical experience suggest meaningful benefits in this area when used as part of a comprehensive treatment approach.
Tendon and ligament injuries
Sprains, strains, tears, tendinitis - BPC-157 accelerates collagen synthesis and tissue repair
Gut healing
IBS, leaky gut, ulcers, inflammatory bowel conditions - derived from gastric juice, it has a natural affinity for digestive tissue
Muscle injuries
Strains, post-workout recovery, chronic muscle issues - promotes angiogenesis and growth factor expression
Joint problems
Arthritis support, joint pain, cartilage issues - anti-inflammatory and regenerative properties
Post-surgical recovery
Accelerating healing after procedures - works systemically to enhance the body's repair mechanisms
Safety Profile
Sideeffects
Common
Mild changes in blood pressure
Minimal systemic effects in animal studies
Headache (theoretical, based on blood pressure effects)
Flushing or warmth at injection site
Mild inflammation at injection site
Dizziness if blood pressure drops too quickly
Allergic reactions to the peptide
Heart rhythm changes (requires monitoring)
Blood pressure, heart rate, cardiac function
Serious
Severe allergic reaction
Injection site redness
Mild nausea
Dizziness
Uncommon
Headache
Fatigue
Hot/cold sensations
Allergic reaction
Research Status
Safety& evidence
FDA Status
Research compound
Safety Overview
Apelin-13 is a research compound with no human clinical trials or FDA approval. All safety data comes from animal studies and in vitro mechanistic work showing beneficial effects on vascular function and cardiac remodeling. However, animal models do not predict human safety, and the peptide's effects on immune regulation in humans remain untested. No dose-ranging studies, pharmacokinetics, or organ accumulation data exist in humans. The APJ receptor is expressed in multiple tissues including brain, raising concerns about off-target neurological effects at high doses.
Contraindications
xCurrently under investigation - not for human clinical use
xMay interact with blood pressure medications (in theory)
xShould not be used if allergic to peptides or component amino acids
xPregnant or breastfeeding individuals should avoid
BPC-157 is a gastric pentadecapeptide with strong preclinical evidence from extensive animal studies spanning over 25 years of research. Critical limitation: BPC-157 has NOT completed Phase 3 human clinical trials. No FDA approval exists. Safety data comes primarily from rat and mouse studies, with only limited Phase 1-2 human data. Animal studies show no toxicity at therapeutic doses, but human data is insufficient for regulatory approval. The peptide is unregulated, and no standardized manufacturing or quality control requirements exist for research compounds. Individual responses may vary significantly, and serious medical supervision is essential before use, particularly if you have gastrointestinal conditions, take medications, or have pre-existing medical conditions.
xPregnancy
xBreastfeeding
xActive cancer
xHistory of cancer
Decision Guide
Which isright for you?
Choose Apelin-13 if...
Research into cardiovascular health and heart function
Understanding how the body naturally protects the heart
Exploring potential treatments for heart failure
Studying mechanisms of heart muscle strength
Choose BPC-157 if...
Injury recovery
Post-surgery healing
Chronic pain management
Gut health