Everything You Need to Know About Glutathione Injections: Side Effects, Benefits, & More

• May 16, 2025
• Written by :  Rebecca LaMarca, MSN, APN-BC, CNS

Glutathione injections have become a popular treatment for brightening the skin and boosting the immune system. These IV treatments can have significant health and cosmetic benefits, but they also come with a range of possible side effects. 

Because of this, it is essential to talk to a healthcare provider before starting with glutathione injections. A trained professional will help you determine whether these injections suit your needs. 

In this article, we dive into the potential glutathione injection side effects and what to expect from this treatment. 

What are Glutathione Injections?

Glutathione is an organic compound naturally produced in the liver. It comprises three amino acids: cysteine, glycine, and glutamic acid. This compound is an antioxidant that protects cells from free radical damage and plays an essential role in immune system function. 

Glutathione injections supplement the body’s natural glutathione levels, providing extra protection against cellular damage. Glutathione injections can be administered intravenously as a shot or IV drip, so the medicine can enter the bloodstream and start acting quickly. 

Benefits of Glutathione Injections

Many patients opt for glutathione injections for their cosmetic benefits, but they can also support your health. Some wellness benefits include: 

• Antioxidant: Glutathione helps your body fight off free radicals that cause long-term cellular damage. 
• Skin brightening and whitening: Glutathione supports healthy skin cells, giving patients a bright, youthful glow. Additionally, glutathione injections have skin-whitening side effects. It reduces the production of melanin, which helps minimize the appearance of acne scars and dark spots for people of all skin tones. 
• Anti-aging: Glutathione’s antioxidant properties protect skin cells from damage, reducing the appearance of fine lines, wrinkles, and other signs of aging. Glutathione also helps skin retain moisture for a more youthful look. 
• Immune system boost: Since glutathione plays an essential role in immune system function, it can help your body fight off illness more effectively. 
• Reduces inflammation: Free radicals can cause cellular inflammation. Glutathione helps fight this inflammation both internally and externally. 

10 Side Effects of Glutathione Injections

While glutathione can have significant health and cosmetic benefits, there are also several possible side effects to be aware of. If you’re interested in these treatments, it’s important to consider glutathione shot side effects and prospective benefits before making your decision.

1. Allergic Reaction

Some patients are allergic to glutathione. While this side effect is relatively rare, it can be extremely dangerous and require immediate medical attention. 

The symptoms of an allergic reaction can come on suddenly and typically consist of hives, swelling, or difficulty breathing. If you think you’re having an allergic reaction to glutathione, seek medical care right away to prevent it from progressing. 

2. Nausea

Many patients experience nausea or queasiness after receiving a glutathione injection. This side effect is very common but usually resolves quickly. Eating a healthy meal can ease sensations of nausea and settle your stomach. 

3. Diarrhea

Another common gastrointestinal issue associated with glutathione injections is diarrhea. This happens because glutathione can temporarily disrupt your gut’s natural ecosystem. This side effect is common but typically passes within a few days as your stomach and intestines readjust. 

4. Headache

Some patients experience headaches after a glutathione injection. These headaches can range in intensity from a dull ache to an intense migraine. Taking time to relax and hydrate after an injection can minimize the intensity of these headaches. 

5. Skin Sensitivity

Some patients experience irritation and redness around the injection site after a glutathione treatment. Your skin may also feel sensitive and uncomfortable when touched. This is a common side effect for most injectable treatments and should clear up in a few days. However, keep an eye on these symptoms to ensure they are not signs of a more serious allergic reaction. 

6. Dizziness

Dizziness is another possible side effect of a glutathione injection, although it is relatively rare. Some people feel lightheaded directly after treatment due to temporary changes in blood pressure. If you experience this side effect, sit or lie down and drink water until the sensation passes. 

7. Low Blood Pressure

Glutathione injections can slightly reduce blood pressure and may even benefit patients with hypertension. However, you might feel fatigued following treatment if you have normal blood pressure. This side effect is moderately common and usually subsides on its own. 

8. Cramping

Since glutathione affects the digestive system, some patients experience stomach cramping and abdominal distress directly after the injection. This side effect is common but usually mild. After the injection, limit these symptoms by focusing on eating healthy foods that won’t irritate your digestive tract. 

9. Bloating

Glutathione can also cause stomach bloating in the hours after injection. Even if you haven’t eaten much, you might feel an uncomfortable sensation of fullness and increased gas. These glutathione IV side effects should not last long, so you can return to your regular routine soon. 

10. Skin Rash

If you’re slightly allergic to glutathione, you might experience a mild skin rash after the injection. The rash is often concentrated around the injection site. If the rash does not resolve on its own, seek medical treatment right away to prevent more severe complications. 

Glutathione Injection Aftercare

The process of getting a glutathione injection doesn’t take long. In some cases, treatment is complete in just 15 minutes. 

When you return home, you can use an ice pack to address swelling or bruising around the injection site. If you experience a headache, you can take over-the-counter pain relievers to manage your symptoms. 

Most people can return to their normal routines right after getting a glutathione injection. However, if you feel fatigued or experience gastrointestinal issues, it may be helpful to rest for a few hours until symptoms fade. Be sure to drink plenty of water in the hours after your injection to ensure you remain hydrated. 

Start Your Journey to Better Health and Wellness with IV Elements

Glutathione injections have plenty of possible side effects that all patients should be aware of before starting treatment. In most cases, side effects are mild and clear up on their own. However, some patients can develop allergic reactions to glutathione. These can be severe and should be treated right away. 

Despite their side effects, glutathione injections also offer plenty of benefits to patients. These include an immune system boost, as well as anti-aging and skin-brightening effects. At IV Elements, we offer glutathione IV therapy in New Jersey, New York, and Pennsylvania. Drips are available at our three New Jersey locations and in your home with our mobile IV services. Book your appointment now to get started!

FAQs

Is taking glutathione injection safe?

Glutathione injections are safe when used under the supervision of a healthcare professional. However, it’s important to consult your doctor before starting treatment to ensure they’re right for you. If you’ve had an allergic reaction to glutathione in the past, it’s best to avoid these injections to prevent future health complications. 

What happens to your body when you start taking glutathione?

Glutathione is an antioxidant, which means it protects cells from damage. When you start taking glutathione, you might notice that your skin looks brighter and more youthful. This is because your skin cells can fight off aging free radicals more easily. 

On top of that, you might notice that your acne scars and dark spots are less visible and that your skin looks lighter overall. This is because glutathione can reduce your skin’s melanin production. 

Finally, glutathione helps support your immune system. After you start taking glutathione, you might notice that you don’t get sick as often and that your body can fight off illness more effectively when you do. 

What happens after the first glutathione injection?

After your first glutathione injection, you might experience swelling and redness around the site. Some people also experience mild side effects such as gastrointestinal issues, headaches, or fatigue. 

It generally takes multiple glutathione injections to see the desired skin-brightening results. However, some people notice that their skin looks brighter and more youthful after the first injection. 

How much do glutathione injections cost?

The price of glutathione injections varies based on a variety of factors, including your provider, location, and the type of injection offered. Learn more about our Skin Brightening IV pricing. Larger premium bags are available for an additional fee. 

References: 

• NCI Drug Directory. Definition of glutathione. https://www.cancer.gov/publications/dictionaries/cancer-drug/def/glutathione

• PubMed. The antioxidant glutathione. https://pubmed.ncbi.nlm.nih.gov/36707132/

• PubMed. Systemic Glutathione as a Skin-Whitening Agent in Adults. https://pmc.ncbi.nlm.nih.gov/articles/PMC7196133/

• PubMed. Glutathione and its antiaging and antimelanogenic effects. https://pmc.ncbi.nlm.nih.gov/articles/PMC5413479/

• ScienceDirect. Glutathione: A key player in autoimmunity. https://www.sciencedirect.com/science/article/abs/pii/S1568997209000561

• Indian Journal of Dermatology, Venereology and Leprology. Glutathione as a skin whitening agent: Facts, myths, evidence, and controversies. https://ijdvl.com/view-pdf/?article=3a8f6da43d188f4524bbfd7649daa125cE1PMa4YOXw=

• Academic Researcher. Are we ashamed of our skin tone? https://www.semanticscholar.org/paper/Are-We-Ashamed-of-Our-Skin-Tone-Jaleel/7d3a17583588d93855a2a30342e7317e95be993e

• Clinical Science. Anti-oxidants show an anti-hypertensive effect in diabetic and hypertensive subjects. https://www.semanticscholar.org/paper/Anti-oxidants-show-an-anti-hypertensive-effect-in-Ceriello-Giugliano/695de7ecd6254124e68ecb02446451862acc79e3

• Share
• Tweet
• Share
• Email