Vitamin B-Complex
A blend of B vitamins that act as coenzymes across carbohydrate, fat, and protein metabolism and in neurotransmitter synthesis.
Medically reviewed by Dr. Jonathan Snipes, MD. Last reviewed May 6, 2026.
What It Is
An injectable B-complex with thiamine (B1) 100mg, niacinamide (B3) 100mg, riboflavin-5-phosphate (B2) 2mg, and pyridoxine (B6) 2mg per mL. Self-administered intramuscular.
How It Works
Each B vitamin serves as a coenzyme: thiamine in carbohydrate metabolism, riboflavin in the electron transport chain, niacinamide in NAD and NADP pathways, and pyridoxine in amino acid and neurotransmitter metabolism. Injection delivers the full pool without relying on gut absorption.
Who It's For
Patients wanting broad B-vitamin support for energy, stress, and metabolic demand, including those on weight-loss protocols or with restricted diets.
Who Should Avoid It
Known allergy to any B vitamin. Use caution in renal impairment. Generally very well tolerated.
Protocol & Pricing
OBP Pharmacy Price
$40/30ml
You pay pharmacy price. No markup.
Starting Dose
1mL once weekly
Form
Injectable vial (30mL; thiamine 100mg, niacinamide 100mg, riboflavin-5-phosphate 2mg, pyridoxine 2mg per mL)
Dosing Protocol
1mL intramuscular once weekly, or per provider. Single 30mL vial ($40). Per mL: thiamine 100mg, niacinamide 100mg, riboflavin-5-phosphate 2mg, pyridoxine 2mg.
Beyond Use Date
90 Days from compounding (USP <797>)
Use within this window from the date your vial is compounded. BUD is set per USP <797> sterile compounding standards and printed on every label.
Stacking Guide
Stacks Well With
Related Peptides
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From $35/10mlCommon questions about Vitamin B-Complex
- What is Vitamin B-Complex?
- An injectable B-complex with thiamine (B1) 100mg, niacinamide (B3) 100mg, riboflavin-5-phosphate (B2) 2mg, and pyridoxine (B6) 2mg per mL. Self-administered intramuscular.
- How does Vitamin B-Complex work?
- Each B vitamin serves as a coenzyme: thiamine in carbohydrate metabolism, riboflavin in the electron transport chain, niacinamide in NAD and NADP pathways, and pyridoxine in amino acid and neurotransmitter metabolism. Injection delivers the full pool without relying on gut absorption.
- Who is Vitamin B-Complex for?
- Patients wanting broad B-vitamin support for energy, stress, and metabolic demand, including those on weight-loss protocols or with restricted diets.
- How much does Vitamin B-Complex cost?
- Vitamin B-Complex costs $40/30ml from Optimal Balance Pharmacy at wholesale, with a flat $39 medical visit fee from RxPepsDirect. The form is Injectable vial (30mL; thiamine 100mg, niacinamide 100mg, riboflavin-5-phosphate 2mg, pyridoxine 2mg per mL).
- What is the Beyond Use Date for Vitamin B-Complex?
- 90 Days from compounding (USP <797>) BUDs are assigned per USP <797> sterile compounding standards and printed on every vial label.