IVUSE+ does not manufacture compounded medications. Actual product appearance and labeling of the medication you receive will differ from website images.
B12.
Direct-to-bloodstream delivery. Pharmaceutical-grade methylcobalamin bypassing the GI tract entirely. 100% bioavailability. No conversion required.
*Clinician-prescribed. Ships from a licensed U.S. pharmacy.
The formulation.
| Compound | Methylcobalamin (Vitamin B12) |
| Form | Methylcobalamin (active, methylated) |
| Concentration | 5 mg/ml |
| Format | Sterile injectable solution |
| Route | Intramuscular / Subcutaneous |
| Pharmacy | Licensed U.S. Compounding Pharmacy |
Oral B12 depends on intrinsic factor, a protein secreted by the stomach lining that binds to B12 so the small intestine can absorb it. If intrinsic factor is low, if the gut lining is compromised, or if stomach acid is suppressed by medication, absorption drops. An injection bypasses the GI tract entirely. The methylcobalamin form is already in its active state. No conversion step, no absorption bottleneck, no dependency on digestive function.
The mechanism
Why Injectable Beats Oral
Oral supplements depend on a complex absorption chain: stomach acid, intrinsic factor, ileal receptors. At every step, bioavailability drops. Studies show oral absorption rates between 1.2% and 40% depending on gut health, age, and concurrent medications.
Injectable delivery bypasses the entire gastrointestinal tract. The compound enters muscle tissue and diffuses directly into the bloodstream. No conversion required. No absorption variables. Predictable dosing with measurable serum levels.
Complete your intake
No appointments. No waiting rooms.
Your prescription ships
Compounded by a licensed U.S. pharmacy. Cold-shipped.
Run the course
Follow your provider's dosing schedule.
Safety
What to expect+
B12 injections are generally well-tolerated. The most common side effect is mild soreness or redness at the injection site, which typically resolves within 24 to 48 hours.
Rare effects include mild diarrhea, itching, or temporary swelling.
Serious side effects are uncommon. Contact your provider if symptoms persist.
Who should not use this+
Do not use if you have a known allergy to cobalt or cobalamin.
Consult your healthcare provider before use if you are pregnant, breastfeeding, or on medication.
Not a substitute for a varied diet and healthy lifestyle.
Regulatory context+
Methylcobalamin is a compounded formulation prepared under section 503A in a licensed U.S. compounding pharmacy. It requires a prescription from a licensed healthcare provider.
Frequently asked
What vitamins and supplements does IVUSE+ offer?+
IVUSE+ offers pharmaceutical-grade injectable vitamins and supplements including B12, Biotin, Vitamin D3, LIPO+, MICC, Carnitine, Folic Acid, and more. All products are sourced from U.S. based, cGMP-compliant facilities.
Why injectable vitamins instead of oral supplements?+
Injectable vitamins bypass the digestive system and deliver nutrients directly into the bloodstream. This means higher bioavailability, faster absorption, and more predictable dosing compared to oral pills and capsules.
Do I need a prescription for injectable vitamins?+
Some injectable vitamins require a prescription while others are available without one. Product pages indicate whether a consultation is required. All of our vitamins meet pharmaceutical-grade purity and quality standards.
How should I store injectable vitamins?+
Store in a cool, dry place away from direct light. Some formulations require refrigeration after opening. Check the product label for specific storage instructions. Do not use past the expiration date.
Can I combine multiple vitamins in my routine?+
Yes. Many of our vitamins are designed to complement each other. Stacking recommendations are provided on each product page. Injectable vitamins like B12, LIPO+, and Carnitine are commonly paired for metabolic support.
How long does shipping take?+
Allow 2 to 4 business days for processing and 1 to 2 business days for shipping. Orders are typically delivered within 3 to 5 business days from purchase. Cold ship items do not ship on weekends or holidays.
Stack your protocol.
A short course of work. Your cells carry it from there.
$205.00 · Clinician-prescribed · Ships from a licensed U.S. pharmacyThese statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Prescription products require an online consultation with a licensed provider who will determine if a prescription is appropriate.