Supplies

LIPO-C

A lipotropic injection combining methionine, inositol, choline, and cyanocobalamin (B12) for metabolic support and fat metabolism.

11 min read 6 references Last updated Jan 2026
Quick Facts
TypeLipotropic Compound (MIC + B12)
CategorySupplies / Metabolic Support
AdministrationIntramuscular injection
Frequency1–2x per week
Typical Dose1 mL per injection
Cycle LengthOngoing (no cycling required)
Available Sizes10 mL multi-dose vials
Stability28 days after first puncture

What is LIPO-C?

LIPO-C is a lipotropic injection formula containing a combination of methionine, inositol, choline (collectively known as MIC), and cyanocobalamin (vitamin B12). Lipotropic compounds are substances that promote the flow of fat and bile to and from the liver, supporting hepatic fat metabolism and helping prevent abnormal fat accumulation in the liver. The combination is widely used in weight management clinics as an adjunctive therapy to diet and exercise programs.

Each component serves a specific metabolic function. Methionine is an essential amino acid that acts as a lipotropic agent by assisting in the breakdown of fats, preventing fat buildup in the liver, and providing sulfur for the production of glutathione, the body's primary intracellular antioxidant. Inositol, a member of the B-vitamin family, is involved in fat transport and metabolism, insulin signal transduction, and serotonin modulation. Choline is essential for the synthesis of phosphatidylcholine, a major component of cell membranes and VLDL particles that transport fat from the liver. Vitamin B12 is critical for energy metabolism, red blood cell formation, and neurological function.

The MIC+B12 combination has been used in clinical weight management for decades. While individual components have well-established metabolic roles, the combination is designed to support multiple fat metabolism pathways simultaneously. The injectable route ensures complete bioavailability, bypassing the absorption limitations of oral supplementation, particularly for B12 in individuals with reduced intrinsic factor or gastrointestinal absorption capacity.

Mechanism of Action

LIPO-C works through the synergistic action of four components, each targeting a different aspect of hepatic fat metabolism and energy production.

Methionine — Methylation & Glutathione

Methionine is converted to S-adenosylmethionine (SAMe), the body's primary methyl donor, which is required for phosphatidylcholine synthesis in the liver. Phosphatidylcholine is essential for VLDL assembly — the mechanism by which fat is exported from the liver. Methionine deficiency leads to hepatic fat accumulation. Additionally, methionine provides the sulfur atom for cysteine and glutathione synthesis, supporting hepatic detoxification and antioxidant capacity [1].

Inositol — Insulin Signaling & Fat Transport

Myo-inositol is a precursor to phosphatidylinositol, a membrane phospholipid involved in insulin signal transduction. It has demonstrated insulin-sensitizing effects in polycystic ovary syndrome (PCOS) studies and supports hepatic lipid export via VLDL assembly. Inositol also modulates serotonin receptor sensitivity, which may influence appetite regulation and mood — relevant factors in weight management [3].

Choline — VLDL Assembly & Fat Export

Choline is the most critical lipotropic factor. It is required for the synthesis of phosphatidylcholine, which constitutes the surface monolayer of VLDL particles. Without adequate choline, the liver cannot assemble and secrete VLDL, leading to fat accumulation (non-alcoholic fatty liver disease). Choline deficiency is remarkably common — over 90% of the U.S. population fails to meet the adequate intake level [2].

Cyanocobalamin (B12) — Energy Metabolism

Vitamin B12 is a cofactor for methionine synthase (which regenerates methionine from homocysteine) and methylmalonyl-CoA mutase (which metabolizes odd-chain fatty acids and certain amino acids). B12 deficiency impairs both methylation capacity and mitochondrial fatty acid metabolism. The injectable route provides 100% bioavailability, critical for individuals with absorption issues [4].

Dosing Protocol

LIPO-C dosing is straightforward as it comes in a pre-mixed, ready-to-use format. Standard dosing reflects decades of clinical weight management practice.

ProtocolDoseFrequencyDurationNotes
Standard1 mL IM1–2x per weekOngoingIM in deltoid or gluteal region
Weight management1 mL IMTwice weeklyDuring active weight lossCombined with diet and exercise program
Maintenance1 mL IMOnce weeklyOngoingAfter reaching target weight
Dosing Notes
  • LIPO-C is not a standalone weight loss treatment. It is designed as an adjunct to proper nutrition and exercise.
  • No cycling is required — the components are naturally occurring nutrients.
  • Morning or early afternoon administration is preferred, as the B12 component can be energizing.
  • Some practitioners increase to twice weekly during active weight loss phases and reduce to once weekly for maintenance.

Administration Guide

LIPO-C comes as a ready-to-use sterile solution. No reconstitution is required.

10 mL multi-dose vial: Ready-to-use solution. Draw 1 mL per dose using a sterile syringe.

Doses per vial: 10 doses at 1 mL each

Needle gauge: 22–25 gauge, 1–1.5 inch for IM injection

Injection sites: Deltoid, vastus lateralis (outer thigh), or dorsogluteal

Supplies Needed (8-Week Protocol at 2x/week)
  • 2 vials LIPO-C (10 mL each) — provides 20 doses, covers 10 weeks at 2x/week
  • 16 syringes with 22–25 gauge needles (1–1.5 inch)
  • Alcohol prep pads

Injection Technique

LIPO-C is administered via intramuscular (IM) injection. IM delivery ensures rapid absorption of all four components.

  1. Clean the injection site with an alcohol swab and allow it to air dry completely (approximately 30 seconds). Common IM sites: deltoid (upper arm), vastus lateralis (outer thigh), or dorsogluteal (upper outer quadrant of buttock).
  2. Draw the dose. Using a 22–25 gauge needle, draw 1 mL from the multi-dose vial. Remove air bubbles by tapping the syringe and gently depressing the plunger.
  3. Insert the needle at 90 degrees into the muscle in a quick, smooth motion. Do not pinch the skin for IM injections — spread the skin taut instead (Z-track technique recommended).
  4. Inject at a moderate pace over 5–10 seconds. Withdraw the needle and apply gentle pressure with a clean swab. Do not massage the injection site (to prevent tracking of the solution).
Injection Site Rotation

Rotate between injection sites to prevent tissue irritation. For twice-weekly protocols, alternate between left and right sides (e.g., left deltoid Monday, right deltoid Thursday). Allow each site at least one week between injections. The solution may appear pink to red due to cyanocobalamin (B12) — this is normal and expected.

Storage & Stability

LIPO-C requires light protection due to the light-sensitive B12 component. Otherwise, storage is straightforward.

Unopened Vial
15–30°C (59–86°F)
Room temperature, protected from light.
Refrigerated
2–8°C (36–46°F)
Preferred. Extends stability of B12 component.
After First Puncture
Refrigerate, protect from light
Use within 28 days of first needle entry.
Appearance
Pink to red solution is normal
Color is from cyanocobalamin. Discard if cloudy.
Storage Tips
  • Protect from light — cyanocobalamin (B12) degrades with light exposure. Store in the original box or wrap in foil.
  • The pink/red color of the solution is from B12 and is completely normal.
  • Multi-dose vials should be discarded 28 days after the first puncture to maintain sterility.
  • Always use a new, sterile needle when drawing from the multi-dose vial.

Side Effects & Considerations

LIPO-C is composed of naturally occurring nutrients and has an excellent safety profile. Side effects are generally mild and infrequent.

Commonly Reported

  • Injection site pain, swelling, or redness — typical of IM injections, usually mild and brief.
  • Urine discoloration (pink/red) — from B12 excretion. Completely harmless.

Less Common

  • Mild nausea or gastrointestinal discomfort — infrequent with injectable route.
  • Body odor — from methionine metabolism to trimethylamine. Uncommon at standard doses.
  • Allergic reaction to B12 — rare. Individuals with known cobalt allergy should avoid cyanocobalamin-containing formulations.
  • Increased energy — may disrupt sleep if administered late in the day.
Important

LIPO-C is a nutritional supplement combination, not a pharmaceutical drug. It is not a standalone weight loss treatment and should be used as part of a comprehensive program including proper nutrition and regular exercise. Individuals allergic to any component (particularly cobalt/B12) should not use this product. Contraindicated in individuals with Leber's disease (hereditary optic neuropathy) due to B12 content.

Stacking Protocols

LIPO-C is commonly combined with other metabolic support compounds. Its role in hepatic fat processing makes it complementary to compounds that increase fat mobilization or oxidation.

LIPO-C + L-Carnitine (Complete Fat Metabolism Stack)

LIPO-C supports hepatic fat processing (export via VLDL) while L-Carnitine handles mitochondrial fatty acid transport for oxidation. This combination addresses fat metabolism from liver to mitochondria.

CompoundDoseFrequencyDuration
LIPO-C1 mL IM1–2x per weekOngoing
L-Carnitine200–600 mg IM3x per weekOngoing

Lifestyle Factors

LIPO-C is most effective when combined with active lifestyle management:

  • Nutrition: A balanced diet with adequate protein supports the metabolic pathways that LIPO-C components facilitate. Avoid excessive alcohol, which competes with methionine metabolism.
  • Exercise: Regular physical activity increases fat mobilization and utilization, providing the substrate that lipotropic compounds help process.
  • Hydration: Adequate water intake supports kidney function and the excretion of metabolic byproducts.
  • Timing: Morning or early afternoon administration leverages the energizing effect of B12 without disrupting sleep.
Recommended Source

LIPO-C is available in 10 mL multi-dose vials from Heritage Labs USA, a U.S.-based research supplier with batch-level purity verification.

  • Third-party purity testing (HPLC & MS)
  • U.S.-based fulfillment
  • Published COAs per lot
View Supplier

Literature & Citations

  1. Brosnan JT, Brosnan ME. The sulfur-containing amino acids: an overview. J Nutr. 2006;136(6 Suppl):1636S-1640S. PubMed
  2. Zeisel SH, da Costa KA. Choline: an essential nutrient for public health. Nutr Rev. 2009;67(11):615-623. PubMed
  3. Croze ML, Soulage CO. Potential role and therapeutic interests of myo-inositol in metabolic diseases. Biochimie. 2013;95(10):1811-1827. PubMed
  4. Stabler SP. Vitamin B12 deficiency. N Engl J Med. 2013;368(2):149-160. PubMed
  5. Fischer LM, daCosta KA, Kwock L, et al. Sex and menopausal status influence human dietary requirements for the nutrient choline. Am J Clin Nutr. 2007;85(5):1275-1285. PubMed
  6. Mato JM, Martínez-Chantar ML, Lu SC. Methionine metabolism and liver disease. Annu Rev Nutr. 2008;28:273-293. PubMed