- Form
- Compounded peptide, subcutaneous injection
- Price
- From $275/month; 2 months $500 ($250/month), confirmed after eligibility review
- Prescription
- Yes, clinician-prescribed for an individual patient
- FDA status
- Not FDA-approved; FDA advisory committee voted 7-5 to recommend it for the 503A bulks list in July 2026, rulemaking pending
MOTS-c is a compounded medication. Compounded medications are not FDA-approved, and the FDA has not reviewed them for safety, effectiveness or quality. What compounded means
How MOTS-c works
MOTS-c is a 16-amino-acid peptide encoded in mitochondrial DNA. In the 2015 mouse study that described it, MOTS-c acted mainly on skeletal muscle, affecting the folate cycle and activating AMPK, the cell's energy sensor, which improved glucose handling. Under metabolic stress it appears to move into the cell nucleus and influence stress-response genes. These mechanisms come from animal and cell work.
Who it’s for, and who it isn’t
May be a fit
- Adults 18+ already working on metabolic health through training, nutrition and sleep
- People who have baseline labs such as A1c, fasting glucose and lipids, and want to track them
- People who understand that the evidence is mostly in mice and cells
- People willing to treat it as a monitored trial with a clear stopping point
Usually not a fit
- People looking for a replacement for exercise, diet or proven medicines such as metformin or GLP-1s
- Anyone with diabetes on glucose-lowering medicines, without close coordination with their prescriber
- Pregnancy, breastfeeding or trying to conceive
- Athletes in drug-tested sport, unless they have confirmed its status with their anti-doping body
- Anyone under 18
What’s included
- Online assessment and visit with a licensed clinician
- Review of metabolic labs, medications and exercise routine
- Prescription only if appropriate and if a licensed pharmacy can lawfully dispense it
- Medication shipped from a licensed U.S. compounding pharmacy
- Follow-up to review your numbers and decide whether to continue
- No membership fee (labs priced separately)
Possible side effects
- Injection-site redness, itching or bruising
- Possible effects on blood sugar, which matter if you take glucose-lowering medicines
- No systematic human side-effect data; FDA has not identified human exposure data
- Long-term effects in people are unknown
This isn’t a complete list. Your clinician reviews risks, interactions and warnings with you before prescribing. In an emergency, call 911.
What the evidence says
The founding 2015 study in Cell Metabolism showed that MOTS-c reduced diet-induced obesity and insulin resistance in mice. Human data are observational: levels rise with exercise and some cohorts link lower levels to higher insulin and BMI, with conflicting results. A 2023 review noted that no effective clinical application has been developed. No controlled trial has shown that injected MOTS-c improves health outcomes in people.
What MOTS-c is
Most of your proteins are coded in the DNA of the cell nucleus. Mitochondria, the energy-producing parts of cells, have a small genome of their own. In 2015 researchers found that a short stretch of mitochondrial DNA codes for a 16-amino-acid peptide they named MOTS-c.
Because your body makes it and it rises with exercise, MOTS-c is sometimes described as an 'exercise mimetic.' That label is a hypothesis drawn from mouse studies, not a description of what it does in people.
What the research shows
In the original mouse research, MOTS-c targeted skeletal muscle and improved how the body handled glucose. Mice fed a high-fat diet and given MOTS-c gained less weight and stayed more insulin-sensitive than untreated mice.
Human findings are limited to measuring natural MOTS-c levels. A 2023 review in Frontiers in Endocrinology describes rises in blood and muscle MOTS-c during exercise, lower levels with age, and mixed links to insulin, A1c and body weight across different groups. The review notes that no effective clinical application has been developed.
The FDA's own entry for MOTS-c states that the agency has not identified any human exposure data on drug products containing it.
MOTS-c and exercise
MOTS-c is not a substitute for training. Exercise improves insulin sensitivity, blood pressure, muscle, bone, mood and sleep through many pathways at once, and it has decades of human outcome data behind it.
If MOTS-c has a role at all, it would be alongside regular strength and aerobic work, not instead of it. Your clinician will ask what you are already doing before discussing any add-on.
FDA status as of October 2026
MOTS-c is not FDA-approved for any use. It was previously in Category 2 of the FDA's interim lists of bulk substances for compounding. In April 2026 its nomination was withdrawn, and the FDA moved it to its nominated-but-withdrawn list. That was not a safety finding and did not place it in Category 1.
On July 23, 2026, the FDA's Pharmacy Compounding Advisory Committee voted 7 to 5, with two abstentions, to recommend MOTS-c for the 503A bulks list for proposed uses in obesity and osteoporosis. The vote is advisory; FDA rulemaking is still required and had not been completed as of October 2026. A favorable vote is a regulatory step, not evidence that MOTS-c works.
HealifyMD only arranges a prescription when a licensed pharmacy confirms it can lawfully dispense the product under current federal and state rules.
Labs first, then a decision
Before MOTS-c is considered, your clinician reviews baseline numbers such as A1c, fasting glucose or insulin, lipids, blood pressure and weight trend. If those point to prediabetes or diabetes, treatments with strong human evidence come first, such as lifestyle programs, metformin or a GLP-1 medicine where appropriate.
If you go ahead, the same numbers are rechecked so that you and your clinician can judge whether anything changed. If you take medicines that lower blood sugar, your clinician will coordinate closely to avoid lows.
Why not buy MOTS-c online?
MOTS-c is widely sold as a 'research peptide' labeled not for human use. Those vials are outside pharmacy oversight, so their identity, strength, purity and sterility are unverified, and there is no clinician checking your labs or medicines.
A prescription does not turn MOTS-c into a proven treatment. It does mean a licensed clinician has reviewed whether it is reasonable for you, a licensed pharmacy prepares it, and someone is following your numbers and can tell you to stop.
Compounded, not FDA-approved
MOTS-c from HealifyMD is a compounded preparation made by a licensed U.S. pharmacy for one patient. Compounded medicines are not FDA-approved and have not been reviewed by the FDA for safety, effectiveness or quality. Your clinician sets dosing; we do not publish home dosing schedules.
The price is from $275/month, or $500 for 2 months ($250/month), with no membership fee, confirmed during your eligibility review. Labs are priced separately.
Go deeper on MOTS-c
Getting startedMOTS-c · 5 min readMOTS-c and exercise: why the 'exercise in a bottle' label falls shortMOTS-c is called an exercise mimetic because muscle releases it during exercise and it helped old mice run. Here's why it can't replace training in people.Read more 
Getting startedMOTS-c · 5 min readMOTS-c and metabolism: promising in mice, unproven in peopleMOTS-c improved insulin sensitivity and weight gain in mice, but human trials are missing. Here's what the metabolic research shows and what to try first.Read more
Prescription treatments are available only to eligible patients after a clinical evaluation by an independently licensed clinician.
MOTS-c: common questions
Is MOTS-c an exercise mimetic?
That is a hypothesis based on mouse studies. It has not been shown to reproduce the benefits of exercise in people.
Is there any human research on MOTS-c?
Human studies so far mostly measure natural MOTS-c levels in the blood. Controlled trials of injected MOTS-c showing health benefits have not been published.
Is MOTS-c like metformin?
Both have been linked to AMPK, the cell's energy sensor, but metformin is an FDA-approved drug with decades of human outcome data. MOTS-c has none.
Can MOTS-c replace training?
No. Exercise has broad, proven benefits that no peptide has been shown to match.
Do I need labs first?
Yes. Baseline metabolic labs help your clinician decide whether MOTS-c is reasonable and let you measure any change.
Does the July 2026 committee vote mean it works?
No. The vote concerned whether pharmacies may compound it. It is not an FDA judgment that MOTS-c is safe or effective.
Is MOTS-c FDA-approved?
No. It is not approved for any use.
Sources
We cite government agencies, professional societies and peer-reviewed research. See our editorial policy.
- The mitochondrial-derived peptide MOTS-c promotes metabolic homeostasis and reduces obesity and insulin resistanceCell Metabolism (via PubMed Central)
- MOTS-c: a promising mitochondrial-derived peptide for therapeutic exploitationFrontiers in Endocrinology
- Certain bulk drug substances for use in compounding that may present significant safety risksU.S. Food and Drug Administration
- July 23-24, 2026 meeting of the Pharmacy Compounding Advisory CommitteeU.S. Food and Drug Administration
- Bulk-list bound? PCAC backs majority of peptides in two-day public meetingMcDermott Will & Schulte