MOTS-c Dosage Guide: Human Evidence, 10 Mg Vial Math, Prices, and COA Checks

MOTS-c dosage is not established by a completed controlled trial of administered native MOTS-c in people. That does not make the buying decision vague. It means separating four exact questions: what human studies tested, how vial concentration works, what each labeled milligram costs, and whether the current lot has credible proof.

Animal study amounts, the 25 mg dose studied for the modified analog CB4211, and online protocols for retail native MOTS-c are not interchangeable. None establishes a validated human dose for a research vial.

The useful buyer workflow is concrete. Confirm that the vial contains its labeled amount, use the reconstitution calculator for concentration math, compare live MOTS-c prices, review vendor testing depth, and read the MOTS-c compound guide. Concentration and U-100 syringe conversion are exact once vial content and added liquid are known.

What the Human and Animal Evidence Actually Tested

Lee and colleagues identified MOTS-c in 2015 as a 16-amino-acid peptide encoded within mitochondrial 12S rRNA. In cells, it affected the folate cycle and de novo purine pathways, leading to AMPK activation. In mice, it improved insulin sensitivity and prevented age-related and high-fat-diet insulin resistance and diet-induced obesity. Those findings are preclinical, not a human dose-finding study.

A 2021 paper studied the body's own MOTS-c response to exercise in 10 healthy young men, not the effects of administered MOTS-c. Skeletal-muscle MOTS-c rose 11.9-fold after exercise. Circulating MOTS-c rose 1.6-fold during exercise and 1.5-fold afterward, then returned toward baseline after four hours.

The same paper used 5 or 15 mg/kg/day intraperitoneally in mouse performance experiments. Old mice receiving 15 mg/kg/day for two weeks ran about 2-fold longer and 2.16-fold farther. Mouse mg/kg amounts should not be converted into a retail human protocol.

CB4211 is a modified MOTS-c analog, not native MOTS-c. Its sponsor reported a Phase 1a study in 65 healthy adults and a four-week Phase 1b study in 20 adults with obesity and at least 10% liver fat. Eleven received 25 mg CB4211 daily and nine received placebo.

Sponsor-reported Phase 1b changes were ALT down 21% versus up 4% with placebo, AST down 28% versus down 11%, and glucose down 6% versus 0%. Absolute liver-fat reductions were similar at 5.03% and 4.88%. No serious adverse events were reported. Transient mild to moderate injection-site reactions were the only adverse events above 10%. This small, short analog study cannot establish native MOTS-c dosing.

ClinicalTrials.gov record NCT07505745 lists a Phase 2a native MOTS-c study with 120 estimated adults, once-daily treatment for 12 weeks, and no posted results. The dose is not public. Because the listed sponsor, Hudson Biotech, has other registry entries that raised validation concerns, treat this as a registry record until the sponsor, site, recruitment, investigational product, and results are independently validated.

Why Online Protocols Do Not Establish a Human Dose

Search results repeatedly cite 2.5 mg, 5 mg, 10 mg, cycle lengths, and timing rules. These are online protocol claims, not clinical standards. A mouse amount, a modified analog dose, an undisclosed registered regimen, and a popular community number do not become a proven native MOTS-c protocol by repetition.

10 Mg Vial Reconstitution Math

The formulas are straightforward:

• Concentration in mg/mL = vial mg ÷ added liquid in mL.
• A U-100 syringe has 100 units per mL, so 1 unit = 0.01 mL.
• Amount per unit = concentration × 0.01 mL.

For a labeled 10 mg vial:

• Add 1 mL: 10 mg/mL, or 10,000 mcg/mL. Each unit is 0.1 mg, or 100 mcg. A neutral 1 mg measurement equals 10 units.
• Add 2 mL: 5 mg/mL, or 5,000 mcg/mL. Each unit is 0.05 mg, or 50 mcg. A neutral 1 mg measurement equals 20 units.
• Add 3 mL: about 3.333 mg/mL, or 3,333 mcg/mL. Each unit is about 0.0333 mg, or 33.3 mcg. A neutral 1 mg measurement equals 30 units.

Those are measurement examples, not a recommendation to use 1 mg or any other amount. The broader 10 mg vial chart covers more concentration examples.

All calculations assume the vial actually contains 10.00 mg. If a matching quantitative report finds another amount, use measured content for value analysis and ask the vendor how the product should be represented rather than silently treating the label as exact.

MOTS-c Prices: 40 Mg Value Leaders

PeptidePub's October 5, 2026 catalog shows these 40 mg offers after available codes:

• Flawless and Iron Protocol: $57.20 list, $48.62 after 15% peptidepub, about $1.22 per labeled mg.
• RetaOne: $55 list, $52.25 after 5% peptidepub, about $1.31 per labeled mg.
• Puratek: $69.95, no cataloged code, about $1.75 per mg.
• NextGen: $80 list, $72 after 10% peptidepub, $1.80 per mg.
• Soraci: $79.99, about $2.00 per mg.
• Purus: $105 list, $84 after 20% peptidepub, $2.10 per mg.
• LabSourced: $99 list, $84.15 after 15% peptidepub, about $2.10 per mg.

For 10 mg vials:

• Flawless and Iron Protocol: $24.20 list, $20.57 after code, about $2.06 per labeled mg.
• RetaOne: $29 list, $27.55 after code, about $2.76 per labeled mg.
• Puratek: $29.95, about $3.00 per mg.
• Ascension: $62 list, $31 after 50% PEPTIDEPUB, $3.10 per mg.
• Purus: $40 list, $32 after code, $3.20 per mg.
• LabSourced: $49 list, $41.65 after code, about $4.17 per mg.

Forty-milligram vials win this label-price comparison, but a larger vial is not automatically the better buy. Compare the storage window, required concentration, exact-lot proof, expected usable quantity, and delivered checkout total.

Prices exclude shipping, taxes, payment fees, inventory changes, lot changes, and future code changes. Check live MOTS-c offers, calculate normalized value with the cost-per-dose tool, and confirm current deals immediately before checkout. RetaOne leads on labeled 40 mg price in this snapshot, but that is not the same as being the best verified overall buy.

COA Checks That Matter More Than a Cheap Labeled Milligram

A useful MOTS-c report should show exact identity, a lot number matching the product for sale, a named independent laboratory, a current report date, identity by LC-MS or an equivalent method, HPLC or UPLC purity, and quantitative net content. Prefer heavy-metals, sterility, endotoxin, and broader contaminant evidence where relevant.

MOTS-c means mitochondrial open reading frame of the 12S rRNA type-c. It is a 16-amino-acid mitochondrial-derived peptide with the sequence MRWQEMGYIFYPRKLR and an approximate molecular weight of 2,174.5 Da. A generic mitochondrial peptide or longevity-blend report is not enough.

Oxidation sensitivity also matters because the sequence contains two methionines and two tyrosines. A strong report should show a clean main peak and disclose relevant secondary peaks. There is no basis here for inventing an acceptable oxidation threshold.

Use PeptidePub's vendor directory and testing methodology to assess proof depth before treating a low price as a strong value.

Ascension provides a useful product-specific example. Kovera Labs report KVR-2026-B16BA6 covers MOTS-c lot 24-05260628 and is dated June 26, 2026. PeptidePub's catalog records 99.588% purity, 11.09 mg net content on a 10 mg label, LC-MS identity, an endotoxin pass, no-growth sterility, and heavy metals under the limit.

That report illustrates why measured content matters, but it verifies only the reviewed lot. Match the lot being offered before applying those findings to a cart.

Current vendor-level PeptidePub Testing Scores are:

• Puratek, NextGen, LabSourced, Flawless, and Iron Protocol: 7 of 7.
• RetaOne and Ascension: 6 of 7.
• Purus: 4 of 7.
• Soraci: 3 of 7.

These scores summarize evidence reviewed across each vendor's products. They do not automatically verify a current MOTS-c lot. Flawless and Iron Protocol scoring 7 of 7 does not mean their current MOTS-c inventory has matching product-specific proof.

After exact-lot verification, a vendor offer route can be a secondary checkout option. It should never substitute for matching proof to the vial in your cart.

FAQ

What is a clinically proven MOTS-c dosage?

No completed controlled trial has established a native MOTS-c human dose. Mouse amounts and the 25 mg CB4211 analog dose are not transferable standards.

How many units are in 1 mg from a 10 mg vial?

It depends on added liquid. On a U-100 scale, a neutral 1 mg measurement equals 10 units after adding 1 mL, 20 units after adding 2 mL, or 30 units after adding 3 mL. This is arithmetic, not a recommendation to use 1 mg.

Is a 40 mg vial cheaper than a 10 mg vial?

In the October 5 snapshot, selected 40 mg offers ran from about $1.31 to $2.21 per labeled mg after code. Selected 10 mg offers ran from about $2.76 to $4.17 per mg. Delivered cost and exact-lot proof can change the winner.

Does exercise research prove injected MOTS-c works in people?

No. The 2021 human component measured endogenous MOTS-c after exercise in 10 young men. Administered performance experiments were in mice.

What should a MOTS-c COA show?

Exact identity, matching lot, named lab, current report date, purity, and quantitative content. Stronger evidence also includes heavy metals, sterility, endotoxins, and broader contaminant screening where relevant.

Bottom Line: Buy MOTS-c by Verified Milligrams, Not Protocol Hype

There is no clinically established native MOTS-c dosage. There is exact concentration and U-100 conversion math once the actual vial content and added liquid are known.

The October 5 snapshot favors 40 mg vials on labeled price, led by RetaOne at about $1.31 per mg after code. Do not name a best overall buy until the current offered lot has matching product-specific evidence and the delivered checkout total is confirmed.

The practical sequence is simple:

1. Compare current MOTS-c prices.
2. Check the seller's evidence in the vendor directory and understand the scoring through PeptidePub's methodology.
3. Run exact concentration math with the reconstitution calculator.
4. Normalize value with the cost-per-dose tool.
5. Apply current deals just before checkout.

For the broader compound and vendor workflow, read the MOTS-c buyer guide. For a side-by-side mitochondrial peptide comparison, see the SS-31 and MOTS-c testing and price guide. Buy the strongest verified value, not the loudest protocol claim.