Licensed U.S. Physicians  ·  HIPAA-Compliant  ·  ★ 4.9 from 12,000+ verified patient reviews  ·  Meds & ongoing guidance included
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Metabolism Support

Eating less is half of it. Processing fat is the rest.

(methionine + inositol + choline + b12) weekly injection

MIC/B12 is a physician-prescribed lipotropic blend: vitamin B12 plus methionine, inositol, and choline, compounds involved in how your body handles fat and turns food into fuel. One injection, once weekly.

  • Four ingredients, each with one clear job
  • A common companion to GLP-1 weight protocols
  • Reviewed and prescribed by a licensed U.S. physician
Start Your Assessment See what's in the blend →
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What's included
Physician review and prescription, your medication from a licensed U.S. compounding pharmacy, clear instructions, and care-team check-ins.
How dosing works
Once weekly, same day each week. Your physician confirms the dose in your visit.
Pricing & membership
No insurance needed. Your physician reviews transparent pricing with you in your visit. No hidden fees, pause or cancel anytime.

Important safety information: prescribed only when a licensed physician determines it is appropriate for you. Read the full safety information.

MIC/B12 injectable
Vial label may vary.
MIC/B12 vial What happens next: intake, physician review, delivery in 3 steps What arrives: discreet chilled MIC/B12 vial with plain-language instructions Your care team: Dr. Samuel B. Lee, MD and Lauren Walters How your MIC/B12 protocol works: one weekly injection of a lipotropic blend
Once weeklyOne small injection
Physician-guidedEvery protocol
HIPAA-Compliant LegitScript Certified Board-Certified Physicians Licensed U.S. Pharmacies

Reviews are collected independently from our patients. We display only what the practice can substantiate.

How it works

From intake to first dose

Guidance included and no insurance paperwork. Here is the whole path.

Two ways to start: book a free discovery call and talk it through with our team first, or go straight to the online health intake. Either way, a licensed physician personally reviews your information and approves your protocol before anything ships.

1

Tell us about your health

If no discovery call is needed, you answer the health questions right away: a short online intake covering your history and goals. It takes about ten minutes.

2

A physician reads it

A U.S. physician licensed in your state reviews your answers. If MIC/B12 doesn't fit your health picture, they'll tell you what does.

3

Your blend ships, care continues

Your prescription ships free from a licensed U.S. compounding pharmacy, and your care team checks in after it lands.

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Where MIC/B12 fits

What metabolism support actually means

A GLP-1 changes how much you eat. This blend is about what your body does next: how fat gets processed and how food gets used. Different job, and the two are often run together.

Fat gets processed

The lipotropic trio works where fat is broken down and moved: your liver. That is the "MIC" in the name.

Food reads as fuel

B12 is central to how your body converts what you eat into usable energy, and to the red blood cells that carry oxygen.

A GLP-1 companion

Many patients run MIC/B12 alongside semaglutide or tirzepatide. Your physician decides whether the pairing makes sense for you.

Or on its own

You don't need a weight protocol to qualify. Plenty of patients take it standalone, at their physician's discretion.

Looking for cellular energy rather than metabolism support? That's NAD+.

What's in the blend

Four ingredients, no mystery

MIC is short for the three lipotropic compounds in the vial. Vitamin B12 makes the fourth. Here is each one in plain words.

B12

Vitamin B12

The energy vitamin. Your nerve cells and red blood cells depend on it.

M

Methionine

An amino acid involved in how your body processes fat.

I

Inositol

A compound that plays a role in how your cells respond to insulin.

C

Choline

A nutrient your liver uses to metabolize fat.

These statements describe how each nutrient functions in the body. They are not claims to treat or cure any condition.

Who's behind your protocol

The people behind your protocol

Most telehealth sites keep their clinicians anonymous. We'd rather introduce you to the humans who read your intake and answer your messages.

Licensed U.S. Physicians HIPAA-Compliant Encrypted & Secure Board-Certified Care
Dr. Samuel B. Lee, MD
Dr. Samuel B. Lee, MD
Founder & Medical Director

Board-certified physician. Dr. Lee founded Limitless Living MD and oversees the medical team behind every protocol on this site.

Lauren Walters
Lauren Walters
Peptide Expert · Certified Health Coach

Lauren leads your discovery call. A certified health coach with a bachelor's degree in health education, she has worked in peptide therapy professionally and personally for years. Her job is simple: help you find the right starting point for your goals.

A licensed physician
Your reviewing physician
Licensed in your state

Every intake is read by a licensed U.S. physician before anything is prescribed. If MIC/B12 isn't a fit, they'll point you toward what is.

The honest part

What to know going in

MIC/B12 is gentle compared to most injectables, but it's still a prescription. Here's the full picture.

Common side effects

  • Soreness or a small bruise at the injection site. It usually fades within a day or two.
  • Occasional mild nausea on the day of your injection.
  • That's the common list. If anything else shows up, message your care team and they'll adjust.

Who should skip it

  • Anyone pregnant, planning pregnancy, or breastfeeding.
  • Anyone with a B12 allergy or a known sensitivity to cobalt.
  • Anyone whose physician reviews their history and says no. That answer stands.

Your physician screens for all of this before anything ships. That is the point of having one.

What arrives at your door

What shows up, exactly

Plain, discreet packaging

The box is unmarked. What's inside stays between you and your care team.

Cold-packed in transit

Your vial ships chilled from a licensed U.S. compounding pharmacy.

Clear dosing instructions

When to inject, how much, and how, spelled out in plain English.

A check-in after delivery

Your care team follows up once it arrives and stays reachable as you go.

Verified review

One patient, quoted exactly

★★★★★

"I feel confident in the product I'm receiving. It has always been very simple to order and fast shipping which I appreciate."

Kaye P. · Limitless Living MD patient

Overall: 4.9 average across 12,000+ verified patient reviews.

Transparent by design

What comes with your plan

One simple plan
  • Licensed physician oversight
  • Medication and physician guidance included
  • Nutrition and coaching support
  • Free, discreet shipping
  • Pause or cancel anytime
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Your physician reviews pricing options in your visit, no surprises.
Physician Q&A

Good to know

Physician-guided care, up close PHYSICIAN-GUIDED CARE
Dr. Samuel B. Lee, MD
Dr. Samuel B. Lee, MD · Founder & Medical DirectorAnswered by our medical team, not a bot.
I'm already on a GLP-1. Do I need this too?
Not necessarily, but it's a common pairing. A GLP-1 works on appetite; MIC/B12 works on how your body processes fat and uses food for energy. Many of our weight loss patients run both. Whether the combination makes sense for you is your physician's call, made from your intake.
Isn't this just a B12 shot?
No. B12 is one of four ingredients. The other three are the lipotropic compounds that put the "MIC" in the name, and they're the reason people choose this blend over a plain B12 injection. If all you need is B12, your physician will tell you that instead.
When will I feel a difference?
Honestly, it's gradual. Some patients notice steadier energy within days, for others it takes a few weeks of consistent weekly doses, and some feel very little even when the blend is doing its job. Results vary, and anyone who promises a specific timeline is guessing.
What does it cost? Do I need insurance?
No insurance needed. Your medication is included in your plan, and your physician walks through transparent pricing with you during your visit, before you commit to anything. No hidden fees.
Can I take it without a weight loss protocol?
Yes. MIC/B12 stands on its own. Plenty of patients use it for metabolism and B12 support without any GLP-1 in the picture. As always, the prescribing physician makes the final call based on your health.
Is my information private?
Yes. Your care is HIPAA-protected and encrypted, handled only by licensed providers and U.S. pharmacies. Nothing is shared without your consent, and you can pause or cancel anytime.
Ask us anything Answered by our medical team, not a bot.

Your metabolism could use a teammate.

Start Your Assessment 2-minute intake · Reviewed by a physician

Licensed U.S. physicians

Every protocol is reviewed and prescribed by a physician licensed in your state.

HIPAA-compliant & encrypted

Your health data is protected end to end, from intake to refill.

Transparent pricing

No hidden fees. Pause or cancel anytime.

Important safety information. The statements on this page have not been evaluated by the FDA. Compounded medications are not reviewed or approved by the FDA for safety, effectiveness, or quality, and this product is not intended to diagnose, treat, cure, or prevent any disease. Prescriptions are issued solely at the discretion of a licensed physician based on individual medical necessity, and availability is subject to FDA and state regulations. This page is for educational purposes only and is not medical advice. Results vary. Talk with your physician about benefits and risks.

These medications are compounded preparations, prepared pursuant to a valid prescription following clinical evaluation by a licensed healthcare provider. They are compounded under Sections 503A/503B of the federal Food, Drug, and Cosmetic Act by state-licensed pharmacies and FDA-registered outsourcing facilities. Compounded medications are not individually approved by the FDA for safety or effectiveness; FDA approval applies to specific manufactured drug products, not to individually compounded preparations. Our pharmacy partners are licensed by their respective state boards of pharmacy and subject to FDA cGMP inspection. Individual results may vary.

MIC/B12 · MetabolismMeds + guidance included
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