Immunity & Collagen

Vitamin C Injections

High-dose vitamin C delivered IV or IM raises plasma levels far beyond what oral dosing achieves. It supports immune function, collagen synthesis, and antioxidant defense — particularly during heavy training, travel, or illness recovery.

How it works

The mechanism

Vitamin C is a cofactor for collagen-synthesis enzymes and a potent water-soluble antioxidant. Plasma ceiling for oral dosing is roughly 250 µmol/L; IV delivers many times higher tissue saturation.

Who it's for

Best candidates

  • Men in heavy training cycles
  • Patients fighting off illness or recovering from travel
  • Anti-aging and skin-quality protocols

Protocol

1–10 g IV weekly, or 1 g IM. Often combined with glutathione.

Timeline

Acute immune effects within hours. Skin and recovery effects over 4–8 weeks.

What to expect

Side effects & considerations

Mild GI symptoms, transient warmth during IV. Rare oxalate concerns at very high IV doses.

Frequently asked

Vitamin C Injections FAQs

Pairs well with

Related treatments

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