Cysteine is a semi-essential amino acid. Cysteine is found in most high-protein foods, such as chicken, turkey, yogurt, cheese, eggs, sunflower seeds and legumes. N-acetyl L-Cysteine (NAC) is a supplement form of cysteine. NAC is an immediate precursor to a very precious substance that our body makes called glutathione.
This product is actually prescribed to my dog to maintain his liver health. He's been on it for a year with great results
Allernest has been a great solution to an annoying allergy problem that was causing me terrible nosebleeds. Nothing worked and I tried a lot of different things. Allernest regulated my histamine response within the first 36 hours. After 4 days of use, I now only use this on an as needed basis. I highly recommend.