MuscleSport CarniShred + Mitoburn combines 2,000mg of double-strength L-Carnitine with four trademarked fat-burning ingredients — 250mg Mitoburn™ (L-BAIBA), 15mg GBB-EEC, 5mg CaloriBurn® (grains of paradise, 6-paradol), and 1.5mg CapsiAtra™ (Dihydrocapsiate) — in a fully transparent, 100% stimulant-free liquid formula. Zero caffeine means this can be stacked with any thermogenic or pre-workout without doubling stimulant intake. Take 1 tablespoon daily, preferably on an empty stomach prior to cardiovascular activity or a strength training workout. 30 + 1 free servings per 16oz container. Do not exceed 3 servings in a 24-hour period. Available in Big City Apple, Rainbow Candy, Northern Lights, Baja Splash, Pineapple Cooler, Cherry Peach O's, Strawberry Melons, Tangy Orange, and Sour Raspberry. California Prop 65 Warning applies.†
L-Carnitine — 2,000mg (2g) — double strength
Mitoburn™ (L-β-Aminoisobutyric Acid / L-BAIBA) — 250mg
GBB-EEC (Gamma-Butyrobetaine Ethyl Ester HCl) — 15mg
CaloriBurn® (Aframomum melegueta seed extract, supplying 6-paradol) — 5mg
CapsiAtra™ (Dihydrocapsiate) — 1.5mg
100% stimulant-free — zero caffeine
Fully transparent label — no proprietary blends
30 + 1 free servings per 16oz container (31 total servings)
Flavors: Big City Apple, Rainbow Candy, Northern Lights, Baja Splash, Pineapple Cooler, Cherry Peach O's, Strawberry Melons, Tangy Orange, Sour Raspberry
Take 1 tablespoon daily, preferably on an empty stomach prior to cardio or strength training
Do not exceed 3 servings in any 24-hour period
Can be stacked with other thermogenics or pre-workouts — contains no stimulants that would duplicate
California Prop 65 Warning applies.
L-Carnitine is a fundamental amino acid derivative with a crucial role in fat metabolism — it acts as a shuttle, transporting long-chain fatty acids across the mitochondrial membrane where they undergo beta-oxidation, the process that converts stored fat into usable cellular energy. Without adequate carnitine, fatty acids cannot efficiently enter the mitochondria for this energy-producing process regardless of how much fat is available to burn. Carnitine is fast becoming one of the most broadly beneficial supplement ingredients in sports nutrition — research has documented applications extending well beyond fat oxidation, including exercise recovery, blood sugar regulation, and general metabolic health. At 2,000mg — described as "double strength" relative to standard single-dose carnitine products — CarniShred + Mitoburn delivers a robust dose within the 500mg-4g range typically studied for carnitine supplementation.†
Mitoburn™ is L-BAIBA (L-Beta-Aminoisobutyric Acid) — an amino acid metabolite of L-valine that muscles naturally produce during exercise, triggered by the PGC-1α protein pathway that muscles activate in response to training. Known as an "exercise factor," elevated L-BAIBA levels are associated with many of exercise's metabolic benefits — it helps regulate metabolism, increases energy expenditure, and manages fuel selection (the body's preference for burning fat versus carbohydrate for energy). Mitoburn™ specifically targets mitochondrial function — by improving mitochondrial health and efficiency, it enhances the body's ability to produce energy, supporting improved endurance and overall metabolic efficiency even outside of active training. At 250mg, MuscleSport's dose sits within the 200-300mg range typically used in Mitoburn-containing products.†
GBB (Gamma-Butyrobetaine) is a direct precursor to L-Carnitine — your body converts GBB into carnitine through the enzyme gamma-butyrobetaine dioxygenase. This might seem redundant given the formula's already substantial 2,000mg carnitine dose, but there's an important synergistic chemistry at play: according to Le Chatelier's principle (the law of chemical equilibrium), the body converts GBB into L-Carnitine, but it also converts excess carnitine back into GBB. By supplementing GBB directly, the formula helps maintain higher overall carnitine levels by shifting this conversion equilibrium — GBB and carnitine continuously interconvert until the two compounds reach balance, and adding GBB pushes that balance point higher. GBB-EEC is known as a "Pro-Carnitine" molecule, with some research suggesting it may be up to 300% more potent than L-Carnitine alone at driving elevated intracellular carnitine levels. At 15mg, MuscleSport's dose sits within the researched 25-50mg-equivalent range for this novel ingredient, adjusted for the ethyl ester form's potency.†
CaloriBurn® is a standardized extract of Aframomum melegueta (grains of paradise), a pepper plant native to Western Africa, supplying the metabolically active compound 6-paradol. Studies have shown that 6-paradol can increase energy expenditure and improve body composition in humans by activating Brown Adipose Tissue (BAT) — a unique type of fat cell that is both thermogenic and metabolically active, burning calories to generate heat rather than storing them the way ordinary White Adipose Tissue does. BAT is increasingly recognized as a powerful metabolic target for weight management, and CaloriBurn®'s specific activation of this tissue type represents a genuinely distinct mechanism from carnitine's fat transport role — addressing calorie expenditure directly rather than only fat oxidation efficiency.†
CapsiAtra™ (Dihydrocapsiate) is a capsinoid compound found naturally in a specific non-pungent variety of chili pepper, chemically related to capsaicin but with roughly 1,000 times less pungency. This means CapsiAtra™ delivers capsaicin's documented thermogenic and metabolic benefits — elevated core body temperature, increased metabolic rate, and greater calorie burning — without the burning sensation, digestive irritation, or elevated heart rate and blood pressure that standard capsaicin-based thermogenics commonly produce. At 1.5mg, MuscleSport's dose matches the generally recommended daily amount for this ingredient class.†
CarniShred + Mitoburn contains no stimulants, such as caffeine — a deliberate design choice that makes it uniquely stackable. Because none of its five active ingredients duplicate the mechanisms of caffeine or other common pre-workout stimulants, it can be layered on top of a stimulant pre-workout, another thermogenic, or used entirely standalone (including in the evening) without concern for compounding stimulant load. For anyone who has already maxed out their comfortable daily caffeine intake through a pre-workout or fat burner, CarniShred + Mitoburn provides an additional fat-metabolism layer that doesn't add to that stimulant total.†
Why does the formula include both L-Carnitine and GBB if GBB converts into carnitine anyway?
The body maintains a chemical equilibrium between carnitine and GBB — excess carnitine actually converts back into GBB over time. By supplementing both simultaneously, CarniShred + Mitoburn helps shift and maintain that equilibrium at a higher overall carnitine level than supplementing carnitine alone would achieve, rather than the two ingredients simply duplicating the same effect.†
Can this be taken with a caffeinated pre-workout or fat burner?
Yes — this is one of the product's primary intended use cases. CarniShred + Mitoburn contains no stimulants, so it can be stacked with other thermogenics or pre-workouts to attack stubborn fat tissue further without duplicating or compounding caffeine intake.†
When is the best time to take CarniShred + Mitoburn?
Preferably on an empty stomach prior to cardiovascular activity or a strength training workout — this timing is thought to maximize the fat-mobilizing and mitochondrial support benefits of the formula's active ingredients heading into a training session where fat oxidation is actively occurring.†
Is CarniShred + Mitoburn appropriate for tested athletes?
Based on the disclosed formula — L-Carnitine, Mitoburn (L-BAIBA), GBB-EEC, CaloriBurn (6-paradol), and CapsiAtra (Dihydrocapsiate) — the product does not contain any compounds prohibited by WADA or NCAA. Tested athletes should review the complete label and verify with their governing body as standard practice.†
Take 1 tablespoon (one serving) daily, preferably on an empty stomach prior to cardiovascular activity or a strength training workout. Do not exceed 3 servings in any 24-hour period. Can be stacked with other stimulant or non-stimulant thermogenics and pre-workouts. Not for persons under 18. Not for pregnant or nursing women. Consult a physician before use if taking any prescription medications or having any medical condition. California Prop 65 Warning applies.†
Real-time inventory across all five Southern California stores
Available in Burbank, Glendale, Glendale Galleria, Pasadena, and North Hollywood
Authorized MuscleSport retailer — carrying CarniShred + Mitoburn alongside the full MuscleSport weight management and performance lineup
Staff who can help you build a complete stimulant-free or stacked fat loss protocol incorporating CarniShred + Mitoburn
One of the best loyalty programs in the supplement industry — earn rewards on every purchase
Not for persons under 18 years of age
Not for pregnant or nursing women
Individuals with thyroid conditions should consult a physician — carnitine can interact with thyroid hormone metabolism
Individuals with seizure disorders should consult a physician — high-dose carnitine has documented rare associations with seizure threshold in susceptible individuals
Individuals taking blood thinners should consult a physician — carnitine has documented mild effects on blood clotting parameters
Do not exceed 3 servings in any 24-hour period
Consult a physician before use if taking any prescription medications or having any medical condition
California Prop 65 Warning applies.
Keep out of reach of children.
†These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Overall rating: 5.0 / 5 from 1 reviews.
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"After a solid bulking season, I was looking to cut and start toning before the start of summer and this put me ahead of schedule. The boost in stamina and performance that marched my potential and helped me breakthrough stagnation. I highly recommend!"