High-Dose Vitamin C IV Therapy: Uses, Evidence & Cost
What high-dose vitamin C infusions are used for, what the research does and doesn't support, and how much they cost.
A vitamin C IV delivers a much larger dose of vitamin C than you could absorb orally, straight into the bloodstream. It's used mainly for immune support, energy, and recovery, and as an antioxidant add-on to wellness drips. High-dose vitamin C is also studied as a complementary therapy in some medical settings, but it is not a standalone treatment or cure for any disease. Expect a session to cost roughly $100–$225, and note that a G6PD screening is important before very high doses.
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Why deliver vitamin C by IV
Your gut caps how much vitamin C you can absorb from pills — take more and you simply excrete the excess. An IV bypasses that limit, so clinics can deliver a far higher blood level than oral supplements allow, which is the whole rationale for the treatment.
On wellness menus it shows up as a dedicated 'immune' or 'high-dose vitamin C' drip and as an add-on to Myers' Cocktails and immune blends.
What it's used for and the state of the evidence
The everyday uses are immune support (especially around cold and flu season or travel), antioxidant support, energy, and recovery. Many people find it helps them feel better, particularly when run-down.
High-dose IV vitamin C has also been researched as a complementary, supportive therapy alongside conventional medical treatment in some clinical contexts. That research is ongoing and does not make it a cure or a substitute for medical care — any such use belongs under a physician's supervision. For routine wellness, view it as immune and antioxidant support, not a proven way to prevent illness.
Cost, safety, and the G6PD caution
A vitamin C drip typically costs $100–$225 depending on the dose, and as an add-on it's often $25–$60. The one safety point that matters more here than with most drips: people with a genetic condition called G6PD deficiency can have a serious reaction to very high-dose vitamin C, so a responsible clinic screens for it before large doses.
Otherwise it's well tolerated in healthy adults. As always, choose a licensed provider with medical oversight, and mention kidney stones or kidney disease, which can be a reason for caution.
Frequently asked
How much does a vitamin C IV cost?+
About $100–$225 as a dedicated drip, and roughly $25–$60 as an add-on to another IV. Higher doses cost more. Check our city cost guides for real menu prices.
Is high-dose IV vitamin C safe?+
For most healthy adults, yes, when administered by a licensed provider. The key exception is G6PD deficiency, which can cause a dangerous reaction to very high doses — a good clinic screens for it first. Mention any history of kidney stones or kidney disease as well.
This guide is informational — independently researched and fact-checked against published clinical sources. It is not a substitute for personalized medical advice.