Glutathione Injections and IV Drips: Side Effects and Evidence

Name: Glutathione Injections and IV Drips: Side Effects and Evidence
Creator: Doktorclub
Published: 2026-11-09

What do glutathione injections do, and what is being promised?

Glutathione is a small molecule produced by the body itself that protects cells against oxidative stress (the build-up of free radicals that damage cells). Laboratory studies have shown that it suppresses an enzyme (tyrosinase) involved in producing melanin, the pigment that gives skin its colour, and shifts pigment production from dark brown melanin towards a lighter type. Its use for skin lightening is based on this mechanism.

However, a substance affecting pigment production in the laboratory does not mean that it lightens human skin safely and lastingly when given into a vein. Glutathione is sold in different forms: as an intravenous drip (marketed as a 'gluta drip' or 'whitening drip'), intramuscular injections, oral capsules, tablets dissolved under the tongue and creams. This article deals particularly with injections and intravenous drips, because the most risks have been reported with these.

These treatments are often offered as a 'cocktail', mixed with vitamin C or other substances. In that case, it becomes even harder to work out which substance a possible side effect comes from.

What does the evidence say?

Only one controlled study comparing the effect of intravenous glutathione on skin lightening with a placebo (an inactive substance) has been published. A systematic review from 2025 reports that in this study the proportion of people reported to have lighter skin appeared higher in the glutathione group than in the placebo group, but that the difference was not statistically significant; the same review concludes that, because of the lack of effectiveness and the side effects, intravenous glutathione should not be used for skin lightening. Another review also finds the design and analysis of the same study flawed.

A few small studies with oral and cream forms of glutathione have reported a decrease in melanin values measured in sun-exposed areas. These studies had few participants and lasted between a few weeks and a few months; the results are inconsistent between studies, and there are no data showing that the effect lasts after use is stopped. One systematic review states that, because of the quality of the studies, the current evidence does not allow a firm conclusion. These results cannot be transferred to intravenous use; oral use is not presented in this article as a recommendation either.

Form of use	State of the evidence	Safety information
Intravenous drip or injection	A single small placebo-controlled study; no significant difference shown, design criticised	Reports of serious side effects exist; no safety study on long-term use
Oral or under the tongue	A few small, short studies; results limited and inconsistent	No serious side effects reported in the short term; long-term safety unknown
Cream	A small number of small studies; the effect is limited to the area where it is applied	Few side effects reported in the short term; no long-term data

Limits of the evidence: most studies on glutathione and skin colour are small, short and use different measurement methods. There is no study examining the long-term safety of intravenous use. 'No evidence' does not always mean 'harmless' or 'harmful'; in this situation, it is also not fully known how common the risks are.

When someone comes to me with a concern about their skin tone, I first try to understand the cause of the dark spot or darkening, because each type of dark spot calls for a different approach. The evidence we have for intravenous glutathione is very limited, while the reported risks can be serious. So if you are thinking of having such a drip, I would like you to talk to a dermatologist first.

Dr. Hamza Gemici
Medical Director, Doktorclub · Aesthetic Medicine Physician

What do official bodies say? The situation by country

The table below is based only on texts published by the relevant official body that we have opened and read. Where we could not find a statement specific to the subject for a country, we have said so clearly; this does not mean that the treatment is approved in that country.

Country / region	Official source	What the source says
Turkey	Turkish Medicines and Medical Devices Agency (Türkiye İlaç ve Tıbbi Cihaz Kurumu, TİTCK), Ministry of Health	No specific statement was found on glutathione injections or drips for skin lightening. As a general rule, medical treatments involving injections must be carried out by a physician in a licensed healthcare facility.
European Union	European Medicines Agency (EMA)	No specific statement was found on glutathione injections for skin lightening.
USA	U.S. Food and Drug Administration (FDA)	There is no injectable medicine approved for skin whitening or lightening; these products may be unsafe and ineffective and may contain unknown ingredients or contaminants; improper injection can lead to the transmission of diseases and to infection. In its August 2026 warning, it states that fever, chills, pain, dizziness, shock and sepsis-like symptoms were reported in at least 30 patients after intravenous glutathione, consistent with exposure to excessive endotoxin (a fever-causing substance of bacterial origin).
United Kingdom	Chartered Trading Standards Institute (CTSI, a consumer protection body)	June 2025 warning: it states that these treatments are not regulated in the United Kingdom and recommends never having an intravenous drip outside a regulated medical setting. No statement specific to the subject was found from the medicines regulator (MHRA).
Philippines	Food and Drug Administration Philippines (FDA Philippines), Advisory No. 2019-182	There is no injectable product approved for skin lightening; injectable glutathione is approved only as supportive treatment in a specific chemotherapy. It reports harmful effects on the liver, kidneys and nervous system and the possibility of Stevens-Johnson syndrome; it draws attention to the risk of transmission of HIV and hepatitis B and C when given in a non-sterile setting and by people who are not physicians.

Legislation and official statements can change over time. This table is based on sources read as of 7 November 2026; if you want to know whether a product is licensed in Turkey, you can ask the physician and the facility that will carry out the treatment.

What are the side effects of glutathione injections?

The reported problems come from three sources: the substance itself, the quality of the product and the conditions under which the treatment is given. How often the side effects occur is not known, because there are no large, long-term studies of this use.

Fever, chills, muscle pain, dizziness, a drop in blood pressure and shock during or immediately after the drip: such symptoms have been reported in the USA after intravenous glutathione, and some people were admitted to hospital. In a case report published from the United Kingdom, a person who had a drip for skin lightening developed a high fever, shock and liver involvement within an hour.
Severe allergic reaction: shortness of breath, swelling of the face and lips, widespread hives.
Severe skin reaction: the Philippine medicines authority has drawn attention to the possibility of Stevens-Johnson syndrome (a drug reaction with blistering and peeling of the skin and of mucous membranes such as the mouth and eyes, requiring emergency treatment).
Harmful effects on the liver, kidneys and nervous system (same source).
High amounts of vitamin C given at the same time: kidney stones and, in people with congenital G6PD deficiency (an inherited enzyme deficiency affecting red blood cells), conditions requiring dialysis have been reported.
Inflammation and infection at the needle site and in the vein; diseases transmitted through the blood.

In addition, because pigment production shifts towards a lighter type, a theoretical (not yet proven) concern has been raised that with long-term use the skin’s natural protection against the sun may decrease and the risk of sun-related skin cancer may increase.

Why is product quality so important?

Every product given into a vein must be sterile and free of endotoxin. The US medicines authority has warned pharmacists not to use dietary-supplement-grade glutathione raw material to prepare products for intravenous use and has reported that products have been recalled because of high endotoxin levels. In other words, even in a legal setting, the quality of the raw material can cause problems.

With products sold online or through social media, with labels in a foreign language or offered as an 'imported whitening kit', the contents, amounts and sterility cannot be known at all. For the general risks of counterfeit products and products of unknown origin, see our article “Counterfeit Products and Unlicensed Treatments”.

Why is a drip given outside a healthcare facility riskier?

Putting in an intravenous line is a medical procedure that pierces the skin and reaches the bloodstream directly. In settings such as hairdressers, beauty salons, homes or hotel rooms, sterile conditions, a system of single-use materials and the ability to intervene in an emergency are often lacking. The Philippine medicines authority draws particular attention to the risk of transmission of infections such as HIV, hepatitis B and hepatitis C when the treatment is given by people who are not physicians and in a non-sterile setting.

If a severe allergic reaction or shock develops during a drip, minutes matter; the team and medicines able to deal with these situations can only be expected to be available in a healthcare facility. On who may carry out the treatment, see our article “Who Can Perform Medical Aesthetic Treatments?”. The signs of an infection developing at the needle site are described in detail in our article “Infection after Aesthetic Treatments”.

If you have had glutathione injections or a drip: is this normal?

If you have had such a treatment before and have no complaints, there is no need to panic. However, it is important to keep an eye on yourself over the following days and to get help without delay if one of the symptoms below occurs. If a severe symptom develops during or after the drip, call 112 (or your local emergency number) without waiting.

Tool for this articleIs this normal? A 30-second check

May be considered normal (keep an eye on it)	Consult your physician	Emergency (112)
A small bruise at the needle site that gradually fades	Increasing redness, warmth, swelling or pain at the needle site or along the vein	Dizziness, a feeling of faintness, cold sweats together with chills and fever during the drip or in the hours afterwards
Mild soreness at the needle site lasting a day or two	Hardness, pus or discharge at the needle site	Shortness of breath, wheezing, a feeling of tightness in the throat
Mild redness that lasts briefly after the plaster is removed	An itchy rash or hives (without shortness of breath or facial swelling)	Rapidly increasing swelling of the face, lips or tongue
—	Yellowing of the eyes or skin, dark urine, a marked decrease in the amount of urine	Widespread blistering or peeling of the skin; sores in the mouth, eyes or genital area
—	Fever and fatigue that start days later and do not go away	Confusion, chest pain

Call 112 without waiting or go to the nearest emergency department

Chills, high fever, dizziness, fainting or feeling as if you are about to faint during or after the drip
Shortness of breath, wheezy breathing, rapidly increasing swelling of the face, lips or tongue
Widespread blistering or peeling of the skin; painful sores in the mouth, eyes or genital area
Chest pain, confusion

If your symptoms are urgent, call 112; if the drip is still running, ask the person giving it to stop it immediately.
Tell the healthcare team when, where, by whom and with which product the treatment was given; state the ingredients you were told about (glutathione, vitamin C and others).
If you have the product box, label, photos or message records, keep them and show them.
For symptoms that are not urgent but worry you, have a physician examine you without delay.
If the treatment was given outside a healthcare facility, ask your physician whether tests for infections transmitted through the blood are needed.

Having had such a treatment does not stop you from asking for help. The healthcare team asks questions not to judge you but to start the right treatment quickly.

Skin tone, expectations and social pressure

Wishes about skin tone are personal matters, often shaped by family, social circles, working life or ideas of beauty. Frequently encountering messages that present lighter skin as more 'well-groomed' or 'successful' can lead a person to see their own natural skin tone as a problem. Having these feelings is understandable and nothing to be ashamed of.

Natural skin tone is not a disease and does not require medical treatment. Conditions such as dark spots, melasma or darkening after inflammation, on the other hand, can be addressed with a medical assessment. If thoughts about your skin tone markedly affect your daily life, talking about this with a physician or a mental health professional is also an option. Our article “Body Image and Aesthetic Treatments” can be a useful guide on this.

What is the safer route for dark spots and uneven skin tone?

The cause of darkening of the skin varies with the type of dark spot: sun spots, melasma and post-inflammatory pigmentation require different approaches, and a method that works for one type can make another worse. So the first step is to have the dark spot examined by a dermatologist. The examination also identifies conditions that require a different assessment, such as spots that change in shape or colour.

Evidence-based options are planned together with the physician after the examination; which option suits you varies from person to person. For the types of dark spots and treatment options, see our article “Dark Spots and Melasma”, and for sun protection, the foundation of treatment, see our article “Sunscreen Guide”. Because some procedures may carry a higher risk of pigmentation on darker skin, the choice of procedure is also made on the basis of the examination.

What should you not do?

Do not have intravenous drips or injections for skin lightening, especially in settings outside healthcare facilities such as hairdressers, beauty salons, homes or hotel rooms.
Do not buy injectable products online or through social media and use them on yourself or others.
Do not accept words such as 'natural', 'the body’s own substance' or 'no side effects' as a reassurance; every product given into a vein carries a medical risk.
If you are pregnant or breastfeeding, have kidney or liver disease or a drug allergy, or take medicines regularly, do not hide this before any treatment.
Do not apply 'whitening' creams of unknown composition to dark spots for long periods.

This page is for general information and does not replace an examination. If in any doubt, contact a physician or the emergency health services.

Questions to ask your physician

What type is my darkening: a sun spot, melasma, post-inflammatory pigmentation, or my natural skin tone?
What are the evidence-based options for this type of dark spot, and what result can I expect?
How can I find out whether a product recommended to me is licensed in Turkey?
I have had an intravenous drip outside a healthcare facility before; do I need any tests?
Do the medicines I take or my illnesses (such as kidney or liver disease or G6PD deficiency) make a treatment risky?
How should I plan sun protection for my skin type?
Which symptoms are an emergency, and for which should I contact you?

Frequently asked questions

What do glutathione injections do?

Glutathione is an antioxidant found in the body; in the laboratory it has been shown to reduce pigment production. However, there is no reliable evidence that it lightens the skin when given into a vein or by injection. The US and Philippine medicines authorities have stated that there is no injectable product approved for skin lightening.

What are the side effects of glutathione injections?

The reported problems include fever, chills, dizziness and shock during or after the drip, severe allergic reactions, the possibility of a severe skin reaction, effects on the liver and kidneys, and infection at the needle site. In a non-sterile setting, there is also a risk of diseases transmitted through the blood. How often these problems occur is not known.

Is an intravenous glutathione drip safe?

There is no study examining the long-term safety of intravenous glutathione for skin lightening. In the USA, fever, chills and shock-like symptoms have been reported after intravenous glutathione, and the FDA has stated that these symptoms are consistent with the product containing excessive endotoxin (a fever-causing substance of bacterial origin). It is therefore not recommended for skin lightening.

Does a glutathione drip lighten the skin for good?

There is no study showing this. In the only study comparing intravenous use with a placebo, no significant difference could be shown. In the small studies with oral and cream forms, there are also no data showing that the effect lasts after use is stopped.

I developed a fever after a glutathione drip; what should I do?

If during or after the drip you have dizziness, a feeling of faintness or shortness of breath together with chills and fever, call 112 without waiting. For milder symptoms that worry you, see a physician the same day; tell them when, where and with which product the treatment was given.

Are glutathione injections legal in Turkey?

No specific statement on glutathione injections or drips for skin lightening was found on the websites of TİTCK (the Turkish Medicines and Medical Devices Agency) and the Ministry of Health. As a general rule, medical treatments involving injections should be carried out by a physician in a licensed healthcare facility. You can ask the physician and the facility that will carry out the treatment about the licensing status of a product.

Are oral glutathione capsules safer than injections?

Small, short studies of oral use have not reported serious side effects; however, long-term safety is not known, and the effect is limited and inconsistent. Before using any product, it is advisable to have the cause of the dark spot assessed by a dermatologist.