jarrow has a version
https://www.amazon.com/Jarrow-Formulas-S-Acetyl-L-Glutathione-Intracellular/dp/B07CLS8134/
so here is a review..no idea if true
“1.0 out of 5 stars NO RESEARCH STUDIES PROVE THAT IT BYPASSES DESTRUCTION IN THE STOMACH OR IS ABSORBED BETTER.
Reviewed in the United States on July 27, 2020
Pubmed contains all biomedical reports published in all research journals in the world. If you search Pubmed for research studies on S-acetyl glutathione, 15 research reports are shown - but NONE of them studied the ability of S-acetyl glutathione to bypass destruction in the gastrointestinal tract; and NONE of those reports studied how well or poorly S-acetyl glutathione is absorbed.
Therefore, all websites about S-acetyl glutathione stating that it bypasses destruction in the stomach and is absorbed very effectively are making
FALSE CLAIMS!!
It is SNAKE OIL - no better than poorly absorbed regular glutathione.
NO RESEARCH STUDIES PROVE THAT IT BYPASSES DESTRUCTION IN THE STOMACH OR IS ABSORBED BETTER.”
This is the cheapest that I have found per mg, especially on auto ship.