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Swanson Ultra

Dr. Stephen Langer's Glutathione Precursor Complex

Dr. Stephen Langer's Glutathione Precursor Complex

Item: SWU542

  • Dr. Stephen Langer's Glutathione Precursor Complex

  • A glutathione boosting complex that features pharma-grade aminos, TMG, ALA and other antioxidants and energy supporting nutrients

  • Includes an advanced form of glutathione called Setria for increased bioavailability

60 Caps
Caps Size: 00

Retail $23.49
Save 40%
In Stock
  • Dr. Stephen Langer's Glutathione Precursor Complex

  • A glutathione boosting complex that features pharma-grade aminos, TMG, ALA and other antioxidants and energy supporting nutrients

  • Includes an advanced form of glutathione called Setria for increased bioavailability

Dr. Stephen Langer's Glutathione Precursor Complex combines the three amino acids that make up glutathione (a tri-peptide combo of glutamate, cysteine and glycine) along with supporting nutrients for optimum absorption and utilization. For those over 45, and certainly those over 60, a glutathione boosting program may be beneficial, as it is critical to overall health and no one is immune to the natural production declines that come with age. To help support positive energy and optimal physical fitness, Glutathione Precursor Complex features the following key ingredients: Setria® Glutathione, glutathione in its reduced form for optimum bioavailability; Pure Amino Acids, N-acetyl-L-cysteine and AjiPure pharmaceutical-grade L-glutamine; TMG for glutathione synthesis; Vitamin C to boost glutathione in red blood cells; Alpha Lipoic Acid to help support glutathione's antioxidant potential; Standardized Milk Thistle, one of the most potent liver nourishers available; and Acetyl L-Carnitine, which aids in the uptake of glutathione and may support its activity.

More About Glutathione:

Known as the "Master Antioxidant," glutathione is the body's most important intracellular antioxidant. It works inside the cells, quenching the free radicals that are formed through normal cellular processes. Without glutathione, we would be quickly overcome by free radicals. And in addition to its antioxidant properties, glutathione is a master detoxifier. It's particularly important within the organs that are responsible for cleansing our bodies, especially the liver and kidneys, but also the lungs and intestines. Glutathione is also important to the immune system. It's essential to the production and replication of white blood cells known as lymphocytes, and it's particularly vital to the activity of specific lymphocytes called "natural killer" or NK cells.


Q: Why supplement with glutathione?
A: While glutathione is produced by the body and can also be found in certain foods, it can be hard to get enough. Several factors affect our body’s glutathione levels: time of day, aging, toxins, diet, lifestyle, and constantly generated free radicals. When levels fluctuate and get too low, your health can take a toll. Supplementing daily is important to support optimal glutathione levels.

Q: What's the benefit of Setria® Glutathione?
A: Kyowa Hakko USA produces Setria® Glutathione with a patented fermentation process that results in a pure, safe ingredient completely void of additives, artificial flavors, or preservatives. This glutathione is also vegetarian, allergen-free and kosher. Not only that, but this particular brand of glutathione is among the only oral glutathione ingredient that has been clinically studied for its effectiveness. Swanson Ultra Dr. Stephen Langer’s Glutathione Precursor Complex features Setria® reduced form glutathione so that it is easily recognized and absorbed by the body for maximum antioxidant, immune and detoxification support. Glutathione levels have been shown to increase 30-35% after 6 months of supplementation.

Terms and Ingredient Definitions

Learn more about Swanson Glutathione Precursor Complex in our Health Library.

Supplement Facts

Serving Size 1 Capsule

  Amount Per Serving % Daily Value
Vitamin C USP(from PureWay-C® ascorbic acid) 100 mg 167%
PureWay-C®[proprietary formulation of ascorbic acid USP combined with lipid metabolites (fatty acids) from vegetable waxes] 116 mg *
BIOSINT™ Acetyl L-Carnitine(from acetyl L-carnitine HCl) 100 mg *
L-Glutamine 100 mg *
N-Acetyl-L-Cysteine (NAC) 100 mg *
Milk Thistle Extract (seeds) (Silybum marianum) (standardized to 80% silymarin) 50 mg *
TMG (trimethylglycine) (from BetaPower® Natural Betaine) 50 mg *
R-Fraction Alpha-Lipoic Acid[from Bio-Enhanced® Na-RALA (sodium R-lipoic acid)] 37.5 mg *
Setria® L-Glutathione Tripeptide(reduced) (glutamic acid, cysteine and glycine) 37.5 mg *

*Daily Value not established.

Other ingredients: Gelatin capsule (gelatin, sodium copper chlorophyllin), rice flour, magnesium stearate.

Suggested Use: As a dietary supplement, take one capsule two times per day with water.

WARNING: Do not take this product if you are pregnant or nursing. Consult your healthcare provider before use if you are taking any prescription medication or if you have a medical condition. Discontinue use if you experience gastrointestinal discomfort.

BetaPower® is a registered trademark of Danisco USA, Inc.

Bio-Enhanced® Na-RALA is a registered trademark of GeroNova, Inc.

BIOSINT™ is a trademark of Sigma-Tau HealthScience USA.

PureWay-C® is a registered trademark of Innovation Laboratories, Inc., and is used under license. U.S. and International patents pending.

Setria® is a registered trademark of Kyowa Hakko Bio Co., Ltd.

Relative Size

Printable Pill Size Guide

Shipping Weight

.17 lbs

Swanson Ultra Dr. Stephen Langer's Glutathione Precursor Complex Reviews

Summary of Customer Ratings & Reviews

Customer Ratings & Reviews

Rated 4.4 out of 5 by 25 reviewers.
Rated 5 out of 5 by Glutathione Precursor Complex I take one of these daily along with Swanson's maximum L-Glutathione. November 29, 2015
Rated 5 out of 5 by the all in one! No where else can you get all your aminos and vitamin c with flavonoids in one pill. Would cost me over 50 bucks to get this products ingredients separately. One of the best products by far Swanson carries. June 20, 2015
Rated 5 out of 5 by Helps immune system Been taking this product for almost two years now. Feel it helps my immune system. May 6, 2014
Rated 4 out of 5 by Good ingredients I have been taking it for a couple of years my health is great and I believe this contributes to it I also take the bio active whey protein along with it May 2, 2014
Rated 5 out of 5 by Look No Further I've tried four or five different Probiotics and this one is as "good as it gets!!!" September 4, 2013
Rated 5 out of 5 by immunity builder I've been using this product for me and my pets for several years. I started with a company that charged a LOT more money, and this has resulted in the same benefits by bolstering our immunities. July 31, 2013
Rated 5 out of 5 by Used properly, it works! When taken 30 minutes after the Bioactive Whey Protein Powder I felt so much more energy. Unfortunately, the powder was on backorder for a time, (It's now available.) That's how I discovered how energized It made me feel. It is somewhat inconvenient to have to time your morning routine. But it's worth the effort. July 21, 2013
Rated 5 out of 5 by Fabulous product! This product contains all the benefits of the well-publicized acetyl-carnitine + lipoic acid research and products, but at TOLERABLE doses! Many of us do not want to take the amount of acetylcarnitine contained in other products! The 1000 mg doses in other products are too strong, and the lipoic they use is too acidy. THIS product is not acidy and has just the right, low dose. Small doses of NAC and vit C are included - just right for me! Try it. You'll love it! (A great deal, too, but don't tell Swanson!) March 17, 2013
Rated 5 out of 5 by IS A PRECURSOR I found no odor in my bottles. To the person who complained about the amount of each ingredient ....this is a precursor which means it will help your body make glutathione on its own. I have read from numerous sources that NAC and ALPHA LIPOIC ACID are both very beneficial for this purpose. Also, if you google DR. PERRICONE'S NEW glutathione serum, he gives a very complete explanation on GLUTATHIONES BENEFITS. January 30, 2013
Rated 2 out of 5 by weird smell My quarrel with this product is the very bad odor coming from the bottle which resembles nothing so much as cat urine. (None of the capsules were broken.) With the best of intentions, I find it impossible to continue with this product. September 29, 2012
Rated 4 out of 5 by not sure I love Swanson. I am not sure if the Glutathione is doing anything for me. I also got the Whey, but I can barely get that down. I dislike milk anyway, so the Whey is ucky for me. I want to think the Glutathione is helpful. but I cannot say for sure. September 25, 2012
Rated 5 out of 5 by Good Value Add up what it would cost to purchase the ingredients in this product separately, and it becomes obvious what a bargain this product is. It contains a comprehensive set of ingredient designed to help detoxify. Without question, I have felt better since utilizing supplements which help the body detoxify. I feel that this product is a good choice both because of the range of ingredients and because of the economical price. September 8, 2012
Rated 4 out of 5 by Quality supplement I have not seen any difference taking this. I take it with whey protein for a 1st thing in the morning boost. I can't say if they really do anything for me, but often times supplements don't show any imediate results. So, I shall continue with this product for overall well being since it's supposed to be good for you. July 28, 2012
Rated 2 out of 5 by Didn't digest very well Wanted to take, but it seems to irritate my esophagus. April 3, 2012
Rated 5 out of 5 by With the Whey, It's Very Effective Not just energy, but a sense of well-being has permeated me since using these two products. Dr. Stephen Langer's whey proteing powder is the sister product. Combined, they really help me feel great. March 24, 2012
Rated 5 out of 5 by As We Age Dr. Stephen Langer's Glutathione Precursor Complex from Swanson Vitamins is an awsome product. As we get older our bodies produce less glutathione which is crucial to good health. I would recommend anyone 40 years of age and older to try this product. It bolsters and fosters good health and immune system. It is also a great way to acquire a cleaer mind and body. With all the pollutants in this world today we need a healthier view on life. I would recommend this for anyone and everyone. March 13, 2012
Rated 5 out of 5 by My Favorite Supplement I take this supplement when I eat a protein bar, and I find my energy level and endurance improve significantly. It's a game-changer. If you want the biggest bang for your buck, try this product when you eat high quality protein. It has significantly improved the quality of life for me. February 27, 2012
Rated 5 out of 5 by i am a boxing trainer and saw an article on glutathione accelerators, i did some homework on the subject and found your product. i have been on the tablets now for 1 month and have felt dramatic changes from my skin to my reflexes and all in between. i feel 20 years younger and will be on this product till the day i die, i highly recomend this to anyone in a sporting field November 29, 2011
Rated 4 out of 5 by gave me a feeling of well being I have been taking this product about a week and i am already feeling like i want to get off the couch and do something. which i have not felt like doing something for quite a while.. i hope this feeling continue. July 14, 2011
Rated 1 out of 5 by Dosages are horrible Swanson been doing this alot. The dosages are horrible here. This product will do nothing for no one. The milk thistle at 50mg will not even be absorbs. Glutathione absorption rate is horrible to put I need to research there formula of it but at 37mg a new born baby will not even benefit. Don't take my word. Research the absorbtion of each and research dosages that may do some good. This forula is wayyyy off. July 4, 2011
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