Treatment & Procedure
IV vitamin therapy (Myers' cocktail)
Biohacking
In IV vitamin therapy, vitamins and minerals run as an infusion directly into a vein, best known as the Myers' cocktail. This raises blood levels far beyond what you can reach via the gut. Whether healthy people get anything out of it has barely been studied.
In brief
An infusion bypasses the gut, so vitamin C and magnesium, for example, reach blood levels that are not possible with tablets. In proven deficiency or impaired absorption, this is sound medicine. For the Myers' cocktail there is exactly one controlled study, a pilot study with 34 fibromyalgia patients: both groups improved, the infusion group and the placebo group, and no difference emerged. The catch: studies on energy, immune support or anti-aging in healthy people are lacking, and high-dose vitamin C can destroy red blood cells in people with an inherited enzyme deficiency.
What it is
The classic Myers' cocktail contains magnesium, calcium, B vitamins and vitamin C in a carrier solution. It goes back to the physician John Myers and was later modified and popularized by the physician Alan Gaby. Today, medical practices, non-medical practitioners and specialized infusion studios offer variants, often with names such as immune, energy or beauty drip, some with high-dose vitamin C, glutathione or NAD.
An infusion usually takes half an hour to an hour. The offers are aimed at people with exhaustion, frequent infections, after exercise or alcohol, and at anyone who wants to increase their performance.
How it is supposed to work
The body absorbs vitamin C from the gut only to a limited extent, and the proportion falls at higher doses. Via the vein, this works without that limit. According to a recent review, infusions reach vitamin C concentrations in the range of 1 to 5 millimoles per liter, while orally they remain below 100 micromoles. In this high range, vitamin C no longer acts like a nutrient but like a drug.
Proponents conclude from this that high levels supply cells better, strengthen the immune system and relieve exhaustion. This very conclusion is the gap: a high blood level is not yet a benefit. If the body is well supplied, it excretes the excess of water-soluble vitamins via the kidneys.
When infusions make sense
There are clear medical reasons for vitamin and mineral infusions: a proven deficiency that cannot be corrected orally, absorption disorders in bowel disease or after gastrointestinal surgery, severe malnutrition. In these cases, what is missing is replaced in a targeted way, based on lab values and a medical diagnosis.
You can recognize reputable offers by the fact that blood values and pre-existing conditions are checked beforehand, a test for G6PD deficiency is done before high-dose vitamin C, a physician is responsible, and no promises of cure against infections, cancer or aging are made.
What is well supported
What is well supported is what an infusion can do pharmacologically: it raises the levels of vitamin C and other nutrients considerably, independently of absorption in the gut. In proven deficiency or impaired absorption, this is a legitimate way to replenish stores quickly.
For the Myers' cocktail itself, there is one randomized, double-blind pilot study. The 34 fibromyalgia patients received the infusion or a saline solution weekly for 8 weeks. In both groups the tender points improved; in the infusion group, pain, mood and quality of life also improved. A significant difference between the groups emerged in none of the endpoints. The authors rated the treatment as feasible and safe.
What the studies show
Ali 2009 — Myers' cocktail in fibromyalgia
Randomized, double-blind pilot study with 34 adults, weekly infusions over 8 weeks, control with lactated Ringer's solution. The primary endpoint was tender points after 8 and 12 weeks. Both groups improved; between the groups there was no statistically significant difference in any endpoint. The placebo response was high.
LOVIT 2022 — high-dose vitamin C in sepsis
872 intensive care patients with sepsis received high-dose vitamin C or placebo every 6 hours. After 28 days, 44.5 percent in the vitamin C group had died or had persistent organ failure, compared with 38.5 percent in the placebo group, relative risk 1.21. A different situation from a wellness infusion, but evidence that high levels do not automatically help.
Gaby 2002 — the practice report
The most-cited source on the Myers' cocktail is an experience report by a physician who used the infusion for asthma, migraine, fatigue, fibromyalgia, infections and other complaints and describes positive experiences. That is not a controlled study.
Where the data stop
For the goals that infusion studios advertise, more energy, a stronger immune system, faster recovery, better skin or anti-aging, we found no controlled studies in healthy people. The only placebo study on the Myers' cocktail was small and showed no difference, even though participants subjectively felt better.
This points to what many users experience: an infusion is a ritual with attention, rest and fluid, and that alone can feel noticeably good. Whether the nutrients contribute anything beyond that is open.
Status, approval and legal
Vitamin infusions without a medical indication are self-pay services; health insurers do not cover them. With a proven deficiency and a medical indication, this may be different. Important for athletes: under the prohibited list of the World Anti-Doping Agency, infusions and injections of more than 100 milliliters within 12 hours are banned, except in the course of hospital treatment, surgery or diagnostic investigations.
Safety
Every infusion carries risks, from bruising and vein irritation to infections at the puncture site. For high-dose vitamin C, a systematic review describes two serious dangers: the breakdown of red blood cells in people with G6PD deficiency and kidney damage from oxalate, especially with very high or repeated doses. It recommends a preliminary examination. Caution also applies in kidney disease, heart failure, kidney stones and with medications that interact with magnesium or calcium. Infusions therefore belong under medical responsibility, with an eye on lab values.
BK-Score Long used, barely studied
| Human evidence | 3 | |
|---|---|---|
| Mechanism | 2 | |
| Safety data | 3 | |
| Hype gap | 1 | |
| Track record of use | 6 |
There is essentially one placebo-controlled pilot study on the Myers' cocktail (34 fibromyalgia patients, J Altern Complement Med 2009): both groups improved, and no difference between infusion and saline emerged in any endpoint. The most-cited other source is a practice report. The core premise – that healthy people benefit from supraphysiological vitamin levels – is not supported; in sepsis, high-dose IV vitamin C even increased the risk of death or organ failure (LOVIT, NEJM 2022, 872 patients). Documented risks of high-dose vitamin C are hemolysis in G6PD deficiency and oxalate kidney damage; screening does not always take place in practice. Immune support, energy and anti-aging are advertised.
The score rates the state of knowledge, not the substance. “Safety data 9” means well studied – not harmless.
Subjective assessment by Biohacking Kompakt based on published scoring rules – not a scientific rating and not a medical recommendation. Rules and all ratings (German)
Frequently asked questions about IV vitamin therapy (Myers' cocktail)
What does a vitamin infusion do?
In proven deficiency or impaired absorption, it replenishes stores quickly. For healthy people hoping for more energy or a stronger immune system, there are no robust studies.
Does the Myers' cocktail work?
The only placebo study, with 34 fibromyalgia patients, found improvements in both groups, but no difference between infusion and saline. Efficacy compared with placebo therefore remains open.
Is a vitamin C infusion dangerous?
At high doses, it can destroy red blood cells in people with G6PD deficiency and put a strain on the kidneys. A test for this enzyme deficiency should therefore come before high-dose vitamin C.
Are vitamin infusions better than tablets?
They produce higher blood levels, especially for vitamin C. Whether this brings an advantage in well-supplied people is not established; the excess is excreted via the kidneys.
Are athletes allowed to have vitamin infusions?
Under the anti-doping prohibited list, infusions of more than 100 milliliters in 12 hours are banned, except in hospital treatment, surgery or diagnostics. Squad athletes should therefore not use wellness infusions.
Does health insurance pay for a vitamin infusion?
Not without a medical indication; it is then a self-pay service. With a proven deficiency and a medical justification, things may look different.
Related
- Same categoryRed light / photobiomodulation (PBM)
- Same categorySauna & cold (hormesis)
- Same categoryNAD+ infusion
- Same sectionStem cell therapy
Sources
- Ali et al., J Altern Complement Med 2009 (Myers' cocktail in fibromyalgia)
- Gaby, Altern Med Rev 2002 (practice report on the Myers' cocktail)
- Lamontagne et al., N Engl J Med 2022 (LOVIT, vitamin C in sepsis)
- Alangari et al., J Med Life 2026 (benefits and risks of high-dose IV vitamin C)
- Bajić et al., Med Sci (Basel) 2026 (pharmacology of IV vitamin C)
- WADA, Prohibited List 2026 (M2.2 infusions)
Open in the database – with search, filters and comparison (German app)
Information only, not medical advice and not a usage or dosage recommendation. Prescription-only and unapproved substances belong in the hands of a physician. Last updated: 2026-10-04.