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Untested combination Metabolic Health

Lipo-C

Also called Lipotropic injection; Lipo-C injection; MIC + carnitine

A compounded injectable blend of nutrients, usually methionine, choline and L-carnitine, often with inositol or B vitamins. It is not a peptide, and the blend itself has not been tested in randomized trials.

Overview

What it is

A mix of nutrients made by compounding pharmacies, not a single molecule. Formulas vary by pharmacy. One published 503A pharmacy formula contains, per mL, methionine 15 mg, choline chloride 50 mg, L-carnitine 50 mg and dexpanthenol 5 mg; other versions add inositol, vitamin B12 or other B vitamins.

How it works

The ingredients are called lipotropics because each has a role in fat handling. Choline and methionine help the liver package and export fat, and L-carnitine moves fatty acids into mitochondria to be burned. Whether injecting them adds anything for people who already get enough from diet is unproven.

What the research shows

No randomized trial of the injectable Lipo-C combination was found. Evidence comes from its ingredients taken separately: a meta-analysis of 37 randomized trials found oral L-carnitine produced about 1.2 kg more weight loss than control on average. Clinic dosing schedules reflect local practice rather than tested protocols.

Studied for

  • Weight managementblend untested; L-carnitine alone shows modest effect
  • Energy and fat metabolismingredient-level research
  • Liver fat handlingcholine and methionine biology

Safety and regulatory status

Safety and side effects

Injection-site pain, redness and warmth are most common; stomach upset and a fishy body odor can occur. Pharmacy labeling lists it as contraindicated with severe liver failure or inborn errors of sulfur-amino-acid metabolism, and cautions use with kidney disease, levodopa or warfarin. Serious allergic reactions are uncommon.

Regulatory status

Not FDA approved. It is a compounded product with no single approved formula, and its safety and effectiveness have not been evaluated by FDA.

Common questions

Is Lipo-C a peptide?

No. It is a blend of nutrients such as methionine, choline and L-carnitine, not a chain of amino acids.

Does Lipo-C cause weight loss?

The blend has not been tested in randomized trials. Oral L-carnitine alone produces only modest average weight loss, about 1.2 kg in pooled studies.

Is every Lipo-C the same?

No. Ingredients and amounts vary by pharmacy, so the exact formula on the label matters.

Related in Metabolic Health

5-Amino-1MQLab / animal only AdipotideEarly human data AOD-9604Large human trials AOD-9604 + CJC-1295 + Ipamorelin blendUntested combination CagrilintideLarge human trials Cagrilintide + Semaglutide (CagriSema)Large human trials
Sources and further reading (4)
  1. Empower Pharmacy. Lipo-C Injection product information (ingredients, warnings).
  2. Talenezhad N, et al. L-carnitine supplementation and weight loss: meta-analysis of 37 randomized controlled trials. Clin Nutr ESPEN, 2020.
  3. Pooja SE, et al. Effects of L-carnitine on weight loss: meta-analysis of 9 randomized trials. Obes Rev, 2016.
  4. Peptide Dossier. Lipo-C: what it actually is, ingredients and evidence.

Laboratory research material: Lipo-C Research Use Only

Educational information only. This content summarizes published research for general education. It is not medical advice, not a recommendation to use any substance, and not an instruction for human or animal use. It does not describe any Research Product sold on this site.