
Weight loss injections have become a category of their own in Beverly Hills. MIC shots, “skinny” shots, B12 blends—most people who care about body composition have seen some version marketed as an easy way to lean out or boost energy. The problem is that most of these formulas lean on vague claims and stimulants rather than clear mechanisms and data.
Levocarnitine operates in a different lane. It’s not a mystery cocktail and it’s not an appetite suppressant. It’s the bioactive form of L-carnitine, a molecule your cells already use to move fat into mitochondria so it can be burned for energy. That makes it a metabolic support, not a stand-alone weight loss drug. When you’re already managing calories, lifting, and working with GLP-1s or other structured protocols, Levocarnitine becomes a way to support how your body uses fuel, not a promise that it will do the work for you.
At Physique26, Levocarnitine injections live inside that context. They’re offered to patients who are serious about body composition, already have a training and nutrition framework in place, and want a measured way to see whether targeted carnitine support makes their program more efficient or simply adds noise. The emphasis is on structure, labs, and follow-up—not on selling a “fat burner” story.
Levocarnitine is the transport system that helps long-chain fatty acids cross into the mitochondria, where they can be oxidized and turned into ATP. Without enough of it, fat has a harder time getting to the machinery that burns it, and the body leans more on other fuel sources. With adequate Levocarnitine, the shuttle runs more smoothly, which can support cleaner use of stored fat during exercise and calorie deficits.
Your body makes carnitine on its own, and you also get it from food, mainly meat and dairy. For some people, that baseline is enough. For others—especially those with higher demands, specific medications, metabolic issues, or aggressive weight-management plans—supplementing into a higher, therapeutic range can make sense. That’s where injection comes in. It bypasses the variability of gut absorption and allows us to reach and maintain levels that are harder to achieve with diet or over-the-counter capsules alone.
There’s also a housekeeping component. Levocarnitine participates in removing excess acyl groups from cells, which helps keep mitochondrial metabolism from getting bogged down. In practical terms, that can look like better tolerance for hard training, less of the heavy-leg fatigue that shows up during deficits, and smoother recovery between sessions when everything else—protein intake, sleep, GLP-1 dosing—is aligned. It doesn’t replace those inputs. It supports them.
In practice, Levocarnitine’s value shows up in the gap between what you’re doing right and what you’re still not getting from your body. You can be in a calorie deficit, lifting consistently, hitting your step count, managing GLP-1 dosing—and still feel like your output doesn’t match your effort. That mismatch often comes down to fuel handling. When fatty acids struggle to move efficiently into the mitochondria, your body leans more heavily on glycogen. You fatigue sooner, recover more slowly, and the “cutting” phase of your program feels blunt instead of precise.
Levocarnitine injections aim to smooth that bottleneck. With steadier access to fat as a fuel source, you may notice better endurance in your training sessions, fewer dips in power output, and a more stable energy profile throughout the day. For some patients, especially those in prolonged deficits or intense strength cycles, the shift is subtle but meaningful—better training consistency, less metabolic friction, and more usable recovery between workouts. It’s not dramatic, but it’s directional. And direction matters in body composition work.
There’s also a cognitive element that often gets overlooked. When your muscles manage energy more efficiently, your central fatigue threshold tends to rise as well. Patients describe being able to stay mentally “in” their sessions longer—more focus, better form, fewer fall-off points where discipline gets replaced by fatigue. None of this replaces programming or nutrition. It just helps your physiology keep up with your plan.

Levocarnitine is not a new molecule chasing the wellness trend cycle. Its role in fatty-acid oxidation is well established in basic science, and it’s been used clinically for decades in settings where mitochondrial function needs explicit support. Most of the research in athletes and metabolic patients points to the same idea: when you raise carnitine levels into a therapeutic window and pair it with a structured training program, you can improve fat utilization and delay fatigue.
Human studies vary in design, but several themes repeat. Some show improved markers of mitochondrial efficiency, especially in populations with higher metabolic stress—people in large deficits, individuals on GLP-1 medications, high-volume endurance athletes, and adults with insulin resistance. Others demonstrate reduced lactate accumulation during exercise and better tolerance for longer sessions. A handful show modest improvements in body composition when Levocarnitine is layered onto an existing plan, not used in isolation.
Where the evidence is clearest is in safety and mechanism. We know how Levocarnitine moves through the body, how it’s metabolized, and how it behaves across dose ranges. We also know what it does not do: it does not replace nutrition, it does not override poor training habits, and it does not produce stimulant-like effects.
At Physique26, we position Levocarnitine injections as an evidence-aligned metabolic support—not a shortcut. The goal is to use what the science supports without overselling what it can’t promise.

Most patients who explore Levocarnitine are already moving in the right direction. They’re training regularly, paying attention to protein intake, adjusting macros around their goals, and often using GLP-1 medications or structured metabolic programs. What they notice, despite all of that work, is diminished drive in their sessions or a frustrating stall in fat utilization—particularly during prolonged deficits or phases where they’re trying to lean out without losing strength.
This therapy makes sense for people who want cleaner energy turnover: the founder cycling through long workdays and late-night workouts, the patient on GLP-1s who feels sluggish as calories shift, or the lifter trying to maintain performance while cutting. Some patients are also simply in a season where recovery feels inconsistent; when the basics are solid but the metabolic math still feels off, Levocarnitine offers another lever to test.
It’s also relevant for patients with specific needs—those with longstanding fatigue, low exercise tolerance, or suspected mitochondrial inefficiency shown in labs or symptoms. The through-line is the same: they’re looking for refinements, not miracles. People expecting stimulant-like acceleration tend not to be a match. This therapy works best for the patient who plays a long game and wants their internal machinery to perform as well as the rest of their plan.
Levocarnitine works on a rhythm, not in a spike. At Physique26, injections are dosed based on your baseline labs, training schedule, metabolic status, and whether you’re currently in a calorie deficit, maintenance phase, or building cycle. Most patients start with a low-to-moderate dose given one to three times per week, usually tied to training days or the day before heavy sessions. That timing helps align the therapy with the moments of highest metabolic demand.
The first step is always a clinical review—looking at your sleep patterns, recovery habits, current medications, and GLP-1 regimen if applicable. We also look at markers that influence mitochondrial efficiency, including B vitamins, iron status, and thyroid function. Once the basics look stable, we introduce Levocarnitine as part of a structured plan rather than a standalone experiment.
Patients track their performance markers and day-to-day signals: stamina, energy stability, recovery ease, and consistency in their workouts. Early changes can feel small—a smoother warm-up, fewer mid-session dips, a cleaner finish to your sets—but they often compound over six to eight weeks. Follow-ups help determine whether to adjust the dose, maintain it, or phase it out if the signal stays weak.
The dosing strategy is simple: use the minimum effective amount, evaluate honestly, and keep the plan aligned with your goals instead of chasing the highest number. The point isn’t stimulation—it’s efficiency.
Levocarnitine doesn’t announce itself. There’s no rush, no immediate “kick,” and no dramatic shift in the first few days. Most patients notice the earliest changes during training: steadier output, fewer moments where their legs feel heavier than they should, and a sense that they can stay in the work without dipping into the familiar slump that usually hits halfway through a session. Recovery can feel cleaner too—less of the lingering drag that follows high-effort days.
By weeks four to six, patterns become clearer. People doing strength-based training often describe better endurance between sets. Patients on GLP-1 medications notice fewer dips in energy as their bodies adapt to lower calorie intake. Endurance-focused patients—cyclists, runners, class-training regulars—sometimes report the simplest change of all: they finish strong instead of fading.
Where this therapy tends to matter most is consistency. Not bigger numbers, not faster sprints—just the ability to repeat quality work day after day without the same metabolic friction. And if the signal doesn’t show up by week eight to twelve, that’s information too. We adjust, simplify, or remove the therapy entirely. The value is in the clarity, not in forcing a tool that doesn’t match your physiology.

Levocarnitine is generally well-tolerated, but it’s still a metabolic therapy—not a casual supplement—and we treat it accordingly. The most common side effects are mild: a brief sense of stomach heaviness when taken without food, or a temporary shift in digestion as your body adjusts. These are usually short-lived and often improve with dosing changes.
There are specific situations where we pause. Patients with significant kidney disease may not process levocarnitine efficiently, which can lead to accumulation. Those with seizure disorders require closer oversight, particularly if their neurologist is adjusting medications. And while levocarnitine is sometimes used clinically in pregnancy for diagnosed deficiencies, supplementation for performance isn’t recommended during pregnancy or breastfeeding.
Medication interactions are rare but not irrelevant. Certain antibiotics and anticonvulsants can influence carnitine levels, and we review these carefully during intake. The goal is simple: use levocarnitine where it adds clarity and withdraw it when the risk-benefit ratio shifts. Every decision is made with your full physiology in view, not just your training log.

Levocarnitine is offered as a self-pay service and is available in both oral and injectable formats. The route depends on your goals: capsules for steady maintenance, injections for patients who want a stronger or more predictable signal during heavy training cycles or while adjusting to GLP-1 medications.
Pricing varies based on dose and duration, and everything is compounded through vetted pharmacies—no third-party powders, no unregulated imports. Most patients begin after a standard health review and, if needed, basic lab work to understand metabolic baselines. Follow-ups are spaced intentionally. This therapy doesn’t require constant monitoring—it requires smart adjustments grounded in real performance data.
HSA and FSA funds are typically accepted, and documentation is provided for those who need it.
Levocarnitine works best inside a thoughtful plan, not as a standalone experiment. Physique26 takes a systems-level view—your training load, your GLP-1 program, your micronutrient status, your recovery patterns, and the cognitive demands of your day. That context shapes how we decide on dose, route, timing, and duration.
Our team is comfortable working with athletes, founders, and patients navigating body-recomposition therapies. We know where levocarnitine shines, where the signal is subtle, and when another tool would get you further. The goal is always the same: remove friction from your physiology so your effort pays off. If levocarnitine helps you get there, we keep it. If it doesn’t, we redirect without hesitation.
Most patients notice training-related changes within three to six weeks. If the signal isn’t clear by week twelve, we reassess.
Injectable forms are more direct and often used for higher-demand training periods. Capsules work well for steady maintenance. Your plan determines the route.
Often yes. Many GLP-1 patients benefit from the energy support, but we review labs and caloric intake to make sure the combination is appropriate.
Levocarnitine supports fat oxidation, but it’s not a weight-loss drug. It’s most effective when training, nutrition, and sleep are already consistent.
Not always, though labs can clarify baseline metabolic status and guide dosing. We recommend them for patients on complex medication regimens or GLP-1s.
No strict rules, but patients with adequate protein intake and stable blood sugar tend to see the strongest signal.
For most patients, yes. We reassess periodically to ensure the benefit stays meaningful and your physiology stays stable.