MOTS-c: Benefits, Side Effects and How to Buy It Legally
Most MOTS-c for sale online is labeled "research use only" and is not made for people. Rx.com offers prescription MOTS-c, compounded by a licensed U.S. 503A pharmacy under the FDA's October 2026 interim peptide policy and prescribed by U.S.-licensed providers, from $109 a month.
- Real prescription MOTS-c, not "research use only"
- Compounded by a licensed U.S. 503A pharmacy
- Online visit with a U.S.-licensed provider
- From $109/mo on the 12-month plan
Available now
Compounded MOTS-c
MOTS-c acetate · subcutaneous injection
Animal and cell studies have looked at metabolism, insulin sensitivity and bone health. Not shown in human trials.
Available now
Compounded Epitalon
Epitalon acetate · subcutaneous injection
Cell and animal studies, mostly from Russia, have looked at sleep, melatonin rhythm and aging markers. Not shown in human trials.
Available now
Compounded BPC-157
BPC-157 acetate · subcutaneous injection
Single-ingredient BPC-157 acetate, compounded by a licensed 503A pharmacy. Not FDA approved.
Want the science first? Read the full guide below
Choose your plan
Prescription MOTS-c plans
Save more with a longer plan. The 12-month plan is $109 a month, $792 less than paying month to month.
One-time payment for the plan, due only if prescribed. Prescription required: a U.S.-licensed provider reviews your online intake and prescribes only if MOTS-c is right for you. MOTS-c is compounded by a licensed U.S. 503A pharmacy and is not FDA approved.
What is MOTS-c?
A mitochondrial peptide studied mainly in mice
MOTS-c is a 16-amino-acid peptide encoded in mitochondrial DNA. In research models it activates AMPK, the cell's energy sensor, and has been studied for metabolism, insulin sensitivity and bone health, mostly in mice.
There are no published human safety studies of MOTS-c, which the FDA's reviewers noted, so the benefits seen in animals are unproven in people. If weight loss is your goal, FDA-approved options also exist: see Rx.com's weight loss program.
The formula
What Rx.com's prescription MOTS-c is
MOTS-c acetateSingle ingredient
The acetate salt form covered by the FDA's October 2026 interim peptide policy. Nothing else is added: it is not combined with any other peptide.
Subcutaneous injectionRoute
Supplied as a vial for injection under the skin. Rx.com does not offer MOTS-c capsules, sprays or creams.
Licensed 503A pharmacyWho makes it
Compounded for you, under your own prescription, by a licensed and state-inspected U.S. 503A compounding pharmacy after a U.S.-licensed provider reviews your intake.
Not FDA approvedStatus
MOTS-c has not been approved by the FDA, and its safety and effectiveness have not been established in human trials.
Where to buy MOTS-c
Where to buy MOTS-c legally in 2026
Search "buy MOTS-c" or "MOTS-c for sale" and most results are research-chemical websites. Their vials are labeled "research use only" or "not for human consumption," they are not made under pharmacy standards, they can be underdosed, contaminated or mislabeled, and the FDA's 2026 policy does not cover them.
Since October 28, 2026 there is a legal route. The FDA said it will not take enforcement action against licensed 503A compounding pharmacies and physicians that prepare MOTS-c for an individual patient with a prescription, as long as they meet requirements for ingredient quality, manufacturing, labeling and safety reporting. That means the legitimate way to get MOTS-c online is a prescription from a licensed provider, filled by a licensed pharmacy.
That is what Rx.com offers: an online visit with a U.S.-licensed provider, then MOTS-c compounded for you by a licensed U.S. 503A pharmacy and shipped to your door, from $109 a month. MOTS-c has been studied mainly in cells and animals, and human evidence is limited. It is not FDA approved, and your provider will tell you honestly whether it fits your goals. You can compare all six on the buy peptides online page.
What MOTS-c has been studied for
MetabolismMetabolic health
Studied for insulin sensitivity and weight in animal models.
EnergyExercise capacity
Studied in mice for exercise capacity and cellular energy. Not shown in people.
BoneBone health
Researched for osteoporosis and bone strength.
Compounded MOTS-c vs. research peptides
| Rx.com | Research-use-only sellers | |
|---|---|---|
| Prescription and medical review | Yes. A U.S.-licensed provider reviews your health history and prescribes only if it is right for you. | No. Anyone can order, with no prescription and no medical review. |
| Who makes it | A licensed, state-inspected 503A compounding pharmacy prepares it for you under your prescription. | Unknown. The vials are labeled "research use only" or "not for human use." |
| Quality standards | It is made to pharmacy compounding standards, and the pharmacy is licensed and inspected by its state board of pharmacy. | None. Research chemicals do not have to meet any standard for people. |
| Legal status | It is covered by the FDA's October 2026 interim policy for compounded peptides. | It is outside the FDA policy and is not sold for people to use. |
Compounded peptides are not FDA approved. Research-use-only peptides sold online are not made or tested for people. A prescription from a licensed provider, filled by a licensed and state-inspected 503A pharmacy, is the only route the FDA's policy covers.
Prescription only
What changed in October 2026
On October 28, 2026 the FDA and HHS published an interim policy for six peptides: BPC-157, TB-500, KPV, MOTS-c, Semax and Epitalon. The FDA said it will not take enforcement action against licensed 503A compounding pharmacies and physicians that prepare them for individual patients with a prescription, as long as they meet requirements for ingredient quality, manufacturing, labeling and safety reporting.
This is not FDA approval. The peptides have not been through the FDA's review for safety or effectiveness, the policy is temporary and can change, and some states may set their own rules. Rx.com offers MOTS-c through U.S.-licensed providers and a licensed U.S. pharmacy; TB-500, KPV and Semax are coming soon.
- Oct 28, 2026
Policy published
The FDA's interim policy lets licensed 503A pharmacies compound six peptides for individual patients.
- Now
MOTS-c is available
Choose a plan, then complete a short online intake about your health, goals and medications.
- After review
Shipped to you
A U.S.-licensed provider reviews your intake, and your prescription ships if it is right for you.
MOTS-c price: how much does it cost?
Prescription MOTS-c from Rx.com starts at $109 a month on the 12-month plan ($1,308 total). You can also choose 6 months for $719 ($119.83 a month), 3 months for $399 ($133 a month) or 1 month for $175. Each plan is a one-time payment, due only if a provider prescribes it. The longer the plan, the lower the monthly price: the 12-month plan saves $792 compared with paying month to month.
Prescription compounded peptides cost more than research-chemical vials because the price covers a licensed provider's review and a licensed 503A pharmacy that compounds and tests to pharmacy standards. Insurance generally does not cover compounded peptides. Your provider chooses the form, and the pharmacy label lists your dose and schedule.
How it works
U.S.-licensed providers
Online health intake
A short, confidential questionnaire about your health, goals and medications. No appointment, no waiting room.
Provider review
A U.S.-licensed provider reviews your answers and prescribes only if treatment is right for you.
Delivered to your door
A licensed U.S. pharmacy fills your prescription and ships it to you.
FAQs
Where can I buy MOTS-c legally?
Can I buy MOTS-c online?
Is MOTS-c legal?
Is MOTS-c for sale online safe?
How much does MOTS-c cost?
What are the side effects of MOTS-c?
Is MOTS-c FDA approved?
Do I need a prescription?
Is it legal in my state?
Important safety information
MOTS-c is not FDA approved. Its safety and effectiveness have not been established in large human trials, and the FDA's own reviewers noted limited human safety data for the peptides covered by the 2026 interim policy. Side effects and long-term risks are not fully known.
Do not use MOTS-c if you are pregnant, breastfeeding or trying to conceive, or if you have or have had cancer, unless your provider says otherwise. Tell your provider about every medication and supplement you take and any health conditions. Never use products labeled "research use only" or "not for human consumption."
Ready to get started?
A confidential online visit with a U.S.-licensed provider, and treatment shipped to your door if it is right for you. See all prescription peptides.
Choose Your Plan Read the full guidePrescription required. Medications are prescribed only when clinically appropriate after an evaluation by a licensed independent provider. Compounded medications are prepared by a licensed pharmacy for an individual patient and are not FDA-approved; the FDA has not evaluated them for safety, effectiveness or quality. Individual results vary.
Peptide status: BPC-157, TB-500, KPV, MOTS-c, Semax and Epitalon are not approved by the FDA. Under the FDA's October 2026 interim enforcement-discretion policy, licensed 503A pharmacies may compound them for individual patients with a valid prescription. BPC-157, MOTS-c and Epitalon are available through Rx.com with a prescription; TB-500, KPV and Semax are not yet.
Medical services: All clinical evaluations, treatment planning and prescribing decisions are made by licensed independent medical providers. Rx.com provides the technology platform, does not employ healthcare providers and does not practice medicine. This page is for information and is not a substitute for professional medical advice.
MOTS-c guide: research, safety and FDA status
MOTS-c is a "mitochondrial-derived peptide" — a small protein encoded within the DNA of the mitochondria, the energy factories inside our cells. Because it is produced by the same machinery that makes our energy, scientists study MOTS-c as a natural signal that helps the body manage metabolism and respond to exercise. MOTS-c is investigational: it is not FDA approved. Rx.com offers it only by prescription, compounded by a licensed 503A pharmacy under the FDA's October 2026 interim peptide policy.
How is MOTS-c thought to work?
In research models, MOTS-c is described as activating AMPK, a master "energy sensor" that helps cells use glucose and fat efficiently — a pathway also linked to exercise and to the diabetes medicine metformin. Studies have explored its effects on insulin sensitivity, physical performance, and metabolic resilience with age. Human evidence is still early.
MOTS-c side effects
MOTS-c has not been through published human safety trials, so its side effects are not well documented. Reports and expected effects include:
- Pain, redness or itching at the injection site
- Fatigue, headache or feeling flushed
- Changes in blood sugar, especially if you take diabetes medication
Because MOTS-c acts on how cells use glucose, people on insulin, sulfonylureas or GLP-1 medication should only use it with a provider watching their blood sugar. Avoid it if you are pregnant, breastfeeding or have a history of cancer unless your doctor agrees.
How MOTS-c is taken
Prescription MOTS-c is compounded as an injection given under the skin, usually prescribed for a set number of weeks rather than indefinitely.
Your provider chooses the form, dose and schedule, and the pharmacy label on your prescription lists them. Do not copy doses from forums or research-chemical sellers.
MOTS-c dosage
There is no FDA-approved or trial-tested dose of MOTS-c. Below is what providers commonly prescribe.
- Common prescribed range: 5 to 10 mg injected under the skin 2 to 3 times a week, in courses of about 4 to 12 weeks.
- In human studies: none with MOTS-c itself (FDA review, July 2026). A drug company tested a modified version, CB4211, at 25 mg under the skin once a day for 4 weeks in 20 adults with fatty liver disease; that is a different molecule.
- What the evidence is: the range is a practice convention built on mouse studies, not on human trials.
Your provider sets your dose, schedule and course length based on your health, goals and other medicines. Do not change your dose on your own.
What human studies have found
MOTS-c is made naturally by your mitochondria, and its levels rise with exercise. In mice, MOTS-c injections improved insulin sensitivity, protected against diet-induced weight gain and improved exercise capacity. Human research so far measures natural MOTS-c levels, for example how they change with exercise in breast cancer survivors, rather than giving MOTS-c as a treatment.
Weight-loss claims are unproven in people. If weight loss is your goal, FDA-approved GLP-1 medications have far stronger evidence.
Frequently asked questions
Why is MOTS-c called "exercise in a bottle"?
What is MOTS-c used for?
Why is MOTS-c called a mitochondrial-derived peptide?
References
- MOTS-c: A promising mitochondrial-derived peptide for therapeutic exploitation. Front Endocrinol, 2023.
- MOTS-c increases in skeletal muscle following long-term physical activity and improves acute exercise performance after a single dose. Physiol Rep, 2022.
- Effect of aerobic and resistance exercise on the mitochondrial peptide MOTS-c in breast cancer survivors. Sci Rep, 2021.
- Mitochondrial-derived peptides and exercise. Biochim Biophys Acta Gen Subj, 2021.
- FDA Pharmacy Compounding Advisory Committee briefing document: MOTS-c, July 2026.
