Lipo-B
MIC + B12 lipotropic
Lipo-B is a compounded lipotropic injection combining methionine, inositol and choline (MIC) with vitamin B12, sold by clinics and med-spas as a fat-loss adjunct.
Regulatory status: Not FDA-approved for weight loss. Cyanocobalamin (B12) is approved only as a vitamin for deficiency and pernicious anaemia; methionine, inositol and choline are not approved drugs for fat loss, and the combination has never been through FDA drug review. The FTC has repeatedly warned that injectable weight-loss claims of this kind are typically unsubstantiated.
Default vial
120 mg
Default mix
10 mL
Reported range
~12 mg (0.5–1 mL) per injection
Draw (U-100)
100 u
Not a peptide — a lipotropic blend (methionine, inositol, choline + B12) sold alongside them. Usually dosed by volume weekly rather than by mcg.
What it is
- A compounded injectable mixing three lipotropic nutrients — methionine, inositol, choline — with cyanocobalamin.
- Sold mainly through medical spas and weight-loss clinics, usually bundled with a diet programme.
- Formulations and doses vary by compounding pharmacy; there is no standard product.
- B12 on its own is an approved drug, but only for vitamin deficiency — not for fat loss.
How it is described to act
- 1
Given by intramuscular or subcutaneous injection at the clinic or by the patient.
- 2
The components enter circulation and are handled as nutrients rather than as a drug with a single target.
- 3
Methionine and choline are proposed to support hepatic phospholipid and lipoprotein handling; inositol is proposed to play a role in lipid-related cell signalling; B12 supports energy metabolism and red-cell production.
- 4
The marketed claim is support for the liver's processing of fat. The combined injectable's effect on body fat has not been established in controlled human trials.
What the research has looked at
What the older literature covers
- Older pharmacology literature on choline and methionine describes their role in hepatic lipid handling in animal and biochemical models — not human fat-loss outcomes.
- Correcting genuine B12 deficiency is well documented to improve fatigue in deficient patients. That is a different claim from fat loss.
What is missing
- A PubMed search located no randomised controlled trial testing the MIC + B12 injectable combination for weight loss.
Strength of evidence: Preclinical evidence only
The rationale is biochemical and the supporting data are old animal and biochemistry work. No modern controlled trial of the combined injectable for weight loss was located.
What is published comes from cell and animal studies. Findings in those models frequently do not carry over to people.
Reported cautions and unknowns
- Any injectable carries injection-site pain, swelling and infection risk, and compounded products vary in quality control.
- Excess methionine and B12 have limited documented toxicity, but unregulated dosing varies by provider.
- It is not a substitute for approved anti-obesity medication, and marketed fat-loss claims for these injections have drawn FTC scrutiny as unsubstantiated.
References
Handling this vial
- Lyophilized vials are generally stored at 2–8 °C and kept out of light; once reconstituted with bacteriostatic water they are refrigerated and commonly discarded after 28 days.
- Mix by aiming water down the vial wall and rolling gently — do not shake — and never re-freeze a reconstituted vial.
- Pep-Tidy cannot verify what is in your vial. Ask your supplier for a current Certificate of Analysis (HPLC/MS).
Lipo-B questions people ask
How do you reconstitute Lipo-B?
A common starting point for a 120 mg vial of Lipo-B is 10 mL of bacteriostatic water, which gives 12 mg per mL. Aim the water down the inside wall of the vial, let it dissolve on its own, and roll gently instead of shaking. Pep-Tidy's reconstitution calculator will recalculate the numbers for any other vial size or water volume you use.
How many units of Lipo-B is one dose?
At 12 mg per mL, that works out to about 100 units on a U-100 insulin syringe for a 12000 mcg dose. Change the vial size, water volume, or target dose in the calculator and the syringe reading updates with it. This is arithmetic, not a dosing recommendation.
What dosing schedule is reported for Lipo-B?
Published and community sources describe ~12 mg (0.5–1 mL) per injection, im / subcutaneous, once weekly, typically run 8 weeks on and 2 weeks off. These figures describe what has been reported, not what anyone should take — talk to a licensed clinician first.
How should Lipo-B be stored?
Lyophilized Lipo-B vials are generally kept at 2–8 °C and out of light. Once reconstituted with bacteriostatic water they are refrigerated and commonly discarded after about 28 days. Never re-freeze a reconstituted vial and never shake it.
Read this before you act on anything above
Everything on this page is a summary of what other people have published — it is not medical advice, not a recommendation, and not a dosing instruction. Reported dose ranges describe what appears in the literature or in community protocols, not what anyone should take. Talk to a licensed clinician before using any peptide.