Peptide Comparison
MOTS-cvsTB-500
A remarkable 16-amino-acid peptide encoded by your mitochondrial DNA that acts as an 'exercise mimetic'—boosting metabolism, improving insulin sensitivity, and helping your cells adapt to metabolic stress just like a good workout would.
A powerful fragment of thymosin beta-4 that acts like your body's repair signal—speeding up healing of muscles, tendons, and tissues by promoting cell migration and new blood vessel growth right where you need it most.
At a Glance
Quick
comparison
Dose Range
MOTS-c
5–15 mg
TB-500
2–5 mg
Frequency
MOTS-c
Once daily
TB-500
Twice weekly
Administration
MOTS-c
Subcutaneous injection
TB-500
Subcutaneous injection
Cycle Length
MOTS-c
4-6 weeks
TB-500
4-6 weeks
Onset Speed
MOTS-c
Moderate (1-2 weeks)
TB-500
Moderate (1-2 weeks)
Evidence Level
MOTS-c
Strong preclinical (extensive animal studies)
TB-500
Moderate human trials (Phase 1-2)
Efficacy
Benefit
ratings
Metabolic Enhancement
Insulin Sensitivity
Mitochondrial Function
Healing Speed
Tissue Repair
Anti-Scarring
Technical Data
Compound
specifications
MOTS-c
Molecular Formula
C101H152N28O22S2
Molecular Weight
2174.64 g/mol
Half-Life
Approximately 4-8 hours (estimated from preclinical data)
Bioavailability
High when injected subcutaneously
CAS Number
1627580-64-6
TB-500
Molecular Formula
C38H68N10O14
Molecular Weight
889.01 g/mol
Half-Life
2-3 days (systemic)
Bioavailability
High via subcutaneous injection (~100%)
CAS Number
885340-08-9
Protocols
Dosing
tiers
MOTS-c
TB-500
Applications
Best
suited for
MOTS-c
Metabolic Health Optimizers
If you're looking to improve how your body handles glucose and energy, MOTS-c directly targets these systems. It's like giving your cells a metabolic tune-up, helping them respond better to insulin and process sugar more efficiently—key factors for long-term health.
Those Seeking Exercise-Like Benefits
Nicknamed an 'exercise mimetic,' MOTS-c activates many of the same pathways that get turned on during physical activity. While it's not a replacement for actual exercise, it may help enhance the benefits you get from working out or provide some metabolic support when exercise is limited.
Weight Management Seekers
Animal studies show impressive prevention of diet-induced obesity. While human data is still emerging, MOTS-c's effects on fat metabolism and insulin sensitivity suggest potential benefits for those working on healthy weight management alongside diet and exercise.
Healthy Aging Enthusiasts
MOTS-c levels naturally decline with age, which may contribute to age-related metabolic problems. Supplementing may help restore more youthful metabolic function, supporting the body's ability to regulate energy and maintain muscle mass as we get older.
TB-500
Athletes Recovering from Muscle Injuries
If you've pulled a hamstring, strained your back, or torn a muscle, TB-500 helps accelerate the healing process by promoting cell migration to the injury site and supporting new blood vessel growth. It's especially useful for injuries that just won't seem to fully heal.
Tendon and Ligament Problems
Tendons and ligaments are notoriously slow healers because they have poor blood supply. TB-500 promotes angiogenesis (new blood vessel formation) and helps repair these stubborn connective tissue injuries—think Achilles tendonitis, tennis elbow, or rotator cuff issues.
Post-Surgical Recovery
After surgery, your body needs to repair a lot of tissue quickly. TB-500 supports wound healing, reduces inflammation, and may help minimize scar tissue formation. Some protocols use it alongside traditional recovery to potentially speed up the healing timeline.
Chronic Inflammation and Slow Healers
Some people just heal slowly—whether due to age, diabetes, or other factors. TB-500 helps regulate the inflammatory response and promotes the cellular processes needed for tissue repair. It essentially tells your body to focus healing resources where they're needed most.
Safety Profile
Side
effects
MOTS-c
Common
- Injection site redness
- Mild fatigue
- Mild headache
Uncommon
- Changes in appetite
- Mild hypoglycemia symptoms
Serious
- Allergic reaction
TB-500
Common
- Injection site redness
- Mild fatigue or lethargy
- Mild headache
- Slight flushing
Uncommon
- Head rush or lightheadedness
- Temporary nausea
Serious
- Allergic reaction
Research Status
Safety
& evidence
MOTS-c
Evidence Level
Strong preclinical (extensive animal studies)
FDA Status
Research compound
Safety Overview
MOTS-c has shown an excellent safety profile in preclinical studies, with extensive animal research demonstrating beneficial effects without significant adverse events. The peptide is naturally produced by your own mitochondria, which suggests inherent compatibility with human biology. However, human clinical trial data is still limited, so caution is warranted. Most reported experiences involve minimal side effects, primarily mild injection site reactions.
Contraindications
- xPregnancy or planning to become pregnant
- xCurrently breastfeeding
- xActive cancer or history of cancer
- xKnown allergy to peptide components
- xChildren and adolescents
TB-500
Evidence Level
Moderate human trials (Phase 1-2)
FDA Status
Research compound
Safety Overview
TB-500 has shown a good safety profile across preclinical studies and limited human research. It's a fragment of thymosin beta-4, a naturally occurring protein in your body involved in healing. Most side effects are mild and transient, primarily injection site reactions. However, large-scale clinical trials are still needed to fully establish its safety profile in humans.
Contraindications
- xPregnancy or planning to become pregnant
- xCurrently breastfeeding
- xActive cancer or history of cancer
- xKnown allergy to peptide components
- xChildren and adolescents
Decision Guide
Which is
right for you?
Choose MOTS-c if...
- Metabolic health optimization
- Insulin sensitivity improvement
- Weight management support
- Mitochondrial function enhancement
Choose TB-500 if...
- Accelerating injury recovery
- Tendon and ligament healing
- Reducing chronic inflammation
- Post-surgical recovery support