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*RXnerds does not manufacture compounded medications. Actual product appearance and labeling of the medication you receive may differ from website images.

B12 Injectable

Endurance and focus, naturally.
B12
Starting at $50.00
100% online, confidential consultations
US board-certified doctors, trusted medications
Free rushed delivery from the pharmacy

What is B12 Therapy?

Vitamin B12 is essential for energy production, red blood cell formation, and nervous system function. Many people don’t get enough—especially if you follow a plant-based diet, have digestive issues, or live with chronic stress.

Unlike pills or sprays, B12 injections deliver the vitamin directly into your system, by passing the gut for fast absorption and noticeable results.

Designed to Support:

  • Low energy or chronic fatigue
  • Brain fog or trouble concentrating
  • Low mood or stress-related burnout
  • Poor sleep or recovery
  • Plant-based or low-meat diets
  • Digestive absorption issues (e.g., IBS, Crohn’s, post-surgery)
Add to cart
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Take the health questionnaire

Based on your state, a synchronous online visit may be required
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Get your prescription

All prescriptions overseen by fully licensed and insured physicians
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Get your meds

Fast free delivery from our accredited pharmacies
Trusted medications
US-licensed Healthcare Providers
Online Telehealth Consultation
Trusted medications
US-licensed Healthcare Providers
Online Telehealth Consultation

Frequently asked questions

Timeline What You’ll Notice
Within 24–72 hrs Boost in energy and mental clarity
Week 1–2 Reduced fatigue, better focus, mood support
Ongoing Steady energy, improved metabolism, and better recovery

Injections can be weekly, biweekly, or monthly—your plan is tailored to your body’s needs.

  • Consultation with a licensed provider
  • Prescription B12 injection therapy, delivered or in-clinic
  • Easy-to-use injection supplies (if home-administered)
  • Personalized dosing and schedule recommendations