14 Best Glutathione and S-Acetyl-L-Glutathione supplements
- Contains 100 mg per tablet
- In easily absorbable S-Acetyl L-Glutathione form
- Contains 175 mg per capsule, in reduced form
- Time-sorb® (slow release) capsule
- Contains 100 mg per capsule
- In easily absorbable S-Acetyl L-Glutathione form
- Contains 450 mg per daily dose, in reduced form
- Best absorbable due to the liposomal shape
- Contains 500 mg per capsule, in reduced form
- Vegetarian capsules
- Contains 250 mg per capsule, in reduced form
- A tri-peptide consisting of L-cysteine, L-glutamine and glycine
- Contains 50 mg per capsule, in reduced form
- A tri-peptide consisting of L-cysteine, L-glutamine and glycine
- Formula for the production of glutathione
- Contains vitamins, minerals and amino acids
- Contains 500 mg per capsule, in reduced form
- In patented Setria® shape
- Contains 250 mg per capsule, in reduced form
- In patented Setria® shape
- 100 mg glutathion per capsule
- With reduced L-glutathione (GSH) only
- Formula for the immune system
- With Glutathione, Cysteine and Vitamin C
- Contains 250 mg of reduced glutathione per capsule
- In patented OPITAC ™ form
- Contains 150 mg glutathione per capsule
- Best absorbable due to the liposomal shape
S-acetyl-l-glutathione, liposomal glutathione and reduced glutathione are the three best forms. Of these three, s-acetyl-l-glutathione is the best absorbed. So pay close attention to this when buying a glutathione supplement.
What is Glutathione?
Glutathione is a substance that the body can make itself from the amino acids cysteine, glycine and glutamic acid.
It was first described and also named in 1921 (Hopkins) and in 1935 it could be synthesized and its structure was definitively established.
Glutathione is found in almost all body cells in high concentrations and has several important functions in cells. To perform these functions, it must be present in a so-called reduced form. In healthy cells, 90% is present in reduced form. It is also a reserve supply for cysteine, which plays an important role in protein synthesis.
Body specific substance
It is not an essential nutrient because our body can make it itself from its constituent substances. Biosynthesis (its creation in the body, all body cells are capable of this) also requires magnesium and ATP, among others. Glutathione is found in the liver and lungs in the highest concentrations.
In people over 40, levels slowly decline. This can be exacerbated by high toxin levels.
With normal use of glutathione, there is no risk of side effects.
More absorbable Glutathione
When taken orally, standard glutathione is poorly absorbed. It is almost completely broken down in the intestines before it can be absorbed into the body.
S-acetyl-l-glutathione, liposomal glutathione and reduced glutathione are much more absorbable. The best experiences have been with the S-acetyl-l-glutathione form. This form has become by far the most popular form of glutathione in a very short time. Due to the coupled acetyl group, this form remains largely intact in the stomach and intestines, so that much more glutathione is actually absorbed into the blood.
.NAC or Glutathione?
A substance often used in place of glutathione is NAC (N-acetylcysteine). NAC can be easily converted to glutathione and has been used for a very long time for this reason. NAC is considerably more stable than glutathione and also a lot more affordable.
Patented forms
A number of products contain a patented form. Patented substances in dietary supplements are a guarantee of quality and purity.
Setria®
Setria® is a patented trademark of Kyowa Hakko Kogyo Co. Ltd. also from Japan. Setria® is also produced in a patented fermentation process. Setria stands for: Set (Balance) + Tria (tripeptide).
OPITAC™
OPITAC™ is a patented trademark of KOHJIN Life Sciences Co., Ltd. of Japan. The company has been producing glutathione for 50 years. The term OPITAC is a combination of the words "optimize" and "intact."
OPITAC™ is produced, in a natural fermentation process, from Torula yeast (candida utilis). OPITAC™ has received a GRAS (Generally Recognized as Safe) notification from the FDA (Food and Drug Administration) in the U.S.
Nutritional sources
The body can make it itself, so dietary sources are less important. There are also not that many products that contain it: spinach, avocados, asparagus and okra are the best sources. Glutathione from food is not absorbed very well, and storage and heating also reduce the amount in foods. Still, for other reasons, it can't hurt to eat one of the aforementioned products regularly.
Other substances that can help increase levels in the body are sulfur, vitamin C, selenium and protein powders.
People who buy Glutathione also use:
Effect of Glutathione
Unfortunately, we cannot tell you anything here about the health effects of Glutathione. Current European Claim legislation does not allow health claims for this substance (yet). More about this on the FAQ page.
If you still want to know more, you can always contact us.