Dr. Stephen Langer's Glutathione Precursor Complex By Swanson Ultra Overview & Drug Interactions

Acetyl-L-carnitine is an ester of the amino acid L-carnitine and is used as a dietary supplement. It is thought to have various health benefits, including improved cognitive function, increased energy production, and protection against age-related decline. Acetyl-L-carnitine is also sometimes used to treat certain medical conditions, such as nerve pain, liver disease, and male infertility.

L-glutamine is the most abundant free amino acid in the body, produced primarily in skeletal muscle and then released into circulation. It serves vital roles in various tissues, including the immune system, gastrointestinal tract, kidneys, and liver, where it supports essential functions such as maintaining intestinal integrity, immune response, and amino acid balance. Although traditionally classified as a non-essential amino acid, during periods of severe stress, glutamine becomes conditionally essential due to the body's increased demand. It acts as a critical nitrogen and carbon transporter between organs, and while the intestinal mucosa can synthesize glutamine, this production is insufficient during times of significant physiological stress. Dietary supplements generally contain L-glutamine as it is the biologically active form of the amino acid.

N-acetyl cysteine (NAC) is derived from the amino acid cysteine. It is used as a prescription medication to treat acetaminophen overdose and to help thin mucus in people with certain respiratory conditions. It is also used as a dietary supplement. NAC has a number of potential health benefits. It is a source of the antioxidant enzyme glutathione, which is important for protecting cells from oxidative stress and supporting immune function. It also may have anti-inflammatory effects and studies show it may support healthy brain function. It is generally considered safe to take NAC supplements in recommended doses.

Milk thistle (Silybum marianum) is a plant belonging to the aster family (Asteraceae). It is native to the Mediterranean region and is widely cultivated in many parts of the world. The plant is known for its milk-white veins on the leaves, which gives it its name. Milk thistle has a long history of use in traditional medicine, and is extremely popular as a dietary supplement, making it one of the most well-known plants in the world. It is purported to have liver-protectant effects and has been used to treat liver disorders such as hepatitis and cirrhosis. It has also been used to treat gallbladder problems and high cholesterol. While there are a number of compounds in milk thistle, one of the active constituents, silymarin, is thought to be responsible for many of its effects, and dietary supplements often report using a standardized amount (generally 70% to 80% silymarin in extracts).

Alpha-lipoic acid (ALA) is a naturally occurring compound that is made by the body and is also found in some foods, such as spinach, broccoli, and potatoes. It plays a role in energy production in the body and acts as an antioxidant, helping to protect cells from damage caused by free radicals. ALA has been studied for its potential health benefits, including the treatment of certain types of nerve damage, diabetes, and liver disease.

Glutathione is a naturally occurring compound that is composed of three amino acids: cysteine, glutamic acid, and glycine. It is found in nearly all cells in the body and plays a crucial role in many physiological processes, including as an antioxidant defense, detoxification, and immune function. Glutathione levels in the body can be decreased by a number of factors, such as aging, stress, poor diet, and exposure to toxins. Some people take glutathione supplements in the hopes of increasing their levels and potentially benefiting from its antioxidant properties. Glutathione supplements are available in various forms, including oral supplements, intravenous (IV) injections, and nebulized (inhaled) forms. Oral glutathione supplements are often in a liposomal form to improve absorption.