what mouse amounts can and can't tell you
MOTS-c peptide amounts came from animal tests
Researchers tried several amounts in mice. Human studies haven't given you a tested amount or schedule.
What mouse amounts don't tell you
Early researchers tested MOTS-c amounts in mice. They tied each amount to the mouse's weight. Researchers injected the mice through the belly. These aren't directions for you.
Studies in people haven't proved any amount safe. They haven't tested a schedule for you either. No study has measured a human half-life. That tells you how long the blood amount takes to drop by half.
Keep the limit clear while you read. Every amount below came from a mouse test. It isn't meant for your care.
What amounts researchers gave the mice
The early tests used belly shots in mice. One long test used about 0.5 milligrams per kilogram per day. Body weight set each mouse's amount. That test ran about 8 weeks.
Short tests reached 5 milligrams for every kilogram per day [1]. Older mice got 15 milligrams for every kilogram each day. Another group got 15 milligrams per kilogram three times during each week [2]. A bone test used 5 milligrams per kilogram per day.
The bone test ran for 12 weeks [5]. These amounts changed mice, but you can't take that as proof they're safe. No human test shows how to choose your amount [4]. Your body may handle MOTS-c in a different way.
Why mouse timing can't set a human schedule
How fast MOTS-c may leave your blood
A human MOTS-c half-life hasn't been measured [4]. Half-life tells you how much time passes before your blood holds half as much MOTS-c. You don't have a human number.
Mouse studies gave shots over days or weeks [2][4]. Those days don't show how fast your blood may clear MOTS-c. They only tell you how the mouse tests ran.
One brain study used a related but different form of MOTS-c [4]. Researchers changed it to help it pass through a cell's outer wall. It wasn't plain MOTS-c. You still don't know how much plain MOTS-c would reach your blood or how fast you'd clear it.
What each kind of test can show
Where the mice received their shots
Researchers gave most mouse shots through the belly [1][2][5]. Some injections went beneath the skin. Other tests added MOTS-c to lab-grown cells. Each method answers a different question for you.
For one brain test, researchers altered MOTS-c [4]. The altered form passed into cells more easily. Research MOTS-c may come freeze-dried, which means its water has been removed.
Studies didn't all mix or store MOTS-c alike. Researchers haven't tested any form in your body [4]. You can't turn these lab methods into your own plan.
What mouse weight changes mean for you
What happened to mouse weight
MOTS-c cut weight gain in mice eating a rich diet [1]. Researchers also measured more heat-making activity in their fat. Those changes appeared in mice. They don't prove that you'd lose weight.
In 2019, another study removed the ovaries from mice. MOTS-c cut their fat gain and helped their cells take in blood sugar [7]. People with obesity had lower natural MOTS-c in blood [4].
For you, that blood finding is only a link. Researchers haven't given MOTS-c shots in a human weight trial [4]. The results don't predict a change on your scale. Your human answer is missing.
What changed in the muscles of older mice
What older mice did after the shots
Exercise raises the MOTS-c your body makes. Researchers asked if shots might copy part of that change. Older mice went farther on a treadmill [2]. Their grip grew stronger, and they walked better. People weren't tested.
The mice also had fewer signs of muscle loss [2]. In 2024, researchers found that MOTS-c attached to an enzyme in muscle cells [13]. Enzymes are proteins that control work inside cells. The cells used more sugar, and mouse muscle showed fewer signs that it was shrinking. You can't assume your muscles would do the same.
WADA is the world group that polices banned drugs in sport. USADA does that work in the United States. Both bar MOTS-c at all times [12]. If you compete, using it can bring a penalty.
How long the mouse tests lasted
The shortest tests checked one shot. The bone test ran 12 weeks [5]. Food and sugar tests lasted about 7 days to 8 weeks [1]. Exercise tests used shots every day or three times during a week [2].
Those spans tell you only when researchers checked the mice. They can't set the length of your care. Your timeline can't come from mouse work. Researchers haven't tested a treatment time for you.