Boost energy
B12 increases circulation to give you more energy, without caffeine or other stimulants.
4.2
Prefilled B12 injections.No vial.
Each syringe arrives sealed and filled. Up to 4,000 mcg of B12. Load it and press.
Order NowFrom $13.99 / shot
Prefilled injections, self-administered at home.
Each syringe arrives sealed and prefilled. Load it into the self-injector, place it on your thigh, and press.
- 1
The pouch
Open the pouch
Each syringe arrives sealed and prefilled.
- 2
The injector
Load the injector
Load the syringe into the self-injector.
- 3
The shot
Press and done
Place it on your thigh and press. The injection is done in seconds.
Our Formulas
Powerful, Convenient & Affordable
Most complete
Dual-MAX
$24.99 / shot
- Total B12: 4,000 mcg
- Methyl: 3,000 mcg
- Hydroxo: 1,000 mcg
- How it acts: Fast and long-acting
- Lipotropics: 50% more
- Inositol: 75,000 mcg
- Choline: 75,000 mcg
- Chromium: 200 mcg
- Auto-refill shipping: Included
Lipo-Energy
$17.99 / shot
- Total B12: 3,000 mcg
- Methyl: 3,000 mcg
- How it acts: Fast-acting
- Lipotropics: Included
- Inositol: 50,000 mcg
- Choline: 50,000 mcg
- Chromium: 100 mcg
- Auto-refill shipping: Included
Methyl-Renew
$13.99 / shot
- Total B12: 2,000 mcg
- Methyl: 2,000 mcg
- How it acts: Fast-acting
- Auto-refill shipping: Included
 Most complete Dual-MAX $24.99 / shot Learn more |  Lipo-Energy $17.99 / shot Learn more |  Methyl-Renew $13.99 / shot Learn more | |
|---|---|---|---|
| Total B12 | 4,000 mcg | 3,000 mcg | 2,000 mcg |
| Methyl | 3,000 mcg | 3,000 mcg | 2,000 mcg |
| Hydroxo | 1,000 mcg | — | — |
| How it acts | Fast and long-acting | Fast-acting | Fast-acting |
| Lipotropics | 50% more | Included | — |
| Inositol | 75,000 mcg | 50,000 mcg | — |
| Choline | 75,000 mcg | 50,000 mcg | — |
| Chromium | 200 mcg | 100 mcg | — |
| Auto-refill shipping | Included | Included | Included |
What makes B12Rx different
Prefilled prescription shots, ready to load.
Oral supplements, non-prescription B12, and cyano drawn from a vial are a different product.
- Oral B12 supplements
Swallowed, not a shot.
- Non-prescription B12
No clinician review.
- Cyano vials
Drawn and measured by hand.
Prefilled shots. No vials.
Sealed syringes. Nothing to draw or measure.
No synthetic cyano
Methyl and hydroxo.
Painless self-injector
Load the syringe, place it, and press.
Fast and long acting
Most people feel it within hours to a day. A shot lasts several days.
The injector and the syringe.
They sit together in the case. The syringe arrives filled and sealed. Load it into the injector and press.
A vial is not a finished shot
Online B12 vials ask you to do the pharmacy’s job: swab a stopper, draw a dose, and keep using the same bottle. A B12Rx syringe arrives already filled.
Showing B12Rx
Prefilled B12Rx | |
|---|---|
| The dose | Each syringe is filled and sealed to its dose. There is nothing to measure. |
| After the first needle | One syringe, one shot. It stays sealed in its pouch until you use it. |
| What you keep using | Methyl. A single dose, not a bottle you go back to. |
| Light and leftovers | Each dose stays in its pouch until that injection. There is no leftover vial. |
| The rubber stopper | Open the pouch, click the syringe into the injector, and press. The injection is done in seconds. |
| Who is accountable | A US-licensed physician reviews the order. A US pharmacy prepares the syringes for that prescription. |
Prefilled B12Rx | Online vials | |
|---|---|---|
| The dose | Each syringe is filled and sealed to its dose. There is nothing to measure. | A vial is labeled per milliliter. The shot is whatever line you draw, bubbles and all. |
| After the first needle | One syringe, one shot. It stays sealed in its pouch until you use it. | The first puncture opens the bottle. The doses left in it share that opened vial, commonly for 28 days, and the vial is finished if sterility is in doubt. |
| What you keep using | Methyl. A single dose, not a bottle you go back to. | Multi-dose cyano is preserved with benzyl alcohol so the stopper can be entered again. That is the usual vial sold for home injection. |
| Light and leftovers | Each dose stays in its pouch until that injection. There is no leftover vial. | These solutions are meant to stay out of the light. An opened vial sits between shots, and the last doses are the oldest. |
| The rubber stopper | Open the pouch, click the syringe into the injector, and press. The injection is done in seconds. | You push a needle through the stopper, inject air, invert, withdraw, and tap out bubbles. The needle can core a piece of rubber into the liquid. |
| Who is accountable | A US-licensed physician reviews the order. A US pharmacy prepares the syringes for that prescription. | A listing is not a prescription, and it is not a pharmacy release in your name. |
What B12 does for your body
Energy, weight loss, circulation, liver, sleep, mood, and nerve function.
Lipotropics
Inositol, choline, and chromium in the same shot as B12. Lipo-Energy includes them. Dual-MAX has 50% more.
Fat metabolism
Lipotropics help the body process and burn fat.
Liver function
They support the liver while it processes fats and clears toxins.
Energy
Paired with B12, they support energy without adding caffeine.
Weight management
B12 plus lipotropics is how these formulas help you lose weight faster.
Made and shipped from the USA
Third-party tested
Every batch independently verified for potency and purity.
Pharmacy compounded
Prepared through a licensed pharmacy fulfillment workflow.
Physician reviewed
Every prescription signed by a US-licensed physician.
FAQ
Common questions
Yes. Orders placed online are connected to licensed medical professionals for review. A prescription is issued only when the reviewer determines it is appropriate.