以下一啲資料,第一部份係有關點解L-cysteine會對美白有幫助,原來佢係合成強力抗氧化劑榖胱甘肽既其中一個成份。
第二部分係節錄於網上一篇Why We Take Cysteine Rather Than N-Acetylcysteine, 要知道如果要食NAC就要加vitamin C,否則對身體唔好。
第三部份那句就係講有關凝血問題。
When taking N-acetyl cysteine it is recommended that two to three times as much vitamin C be taken at the same time. Failure to do so may result in more harm than good from taking this product because of the prolonged presence of the oxidized form of L-Cysteine. The vitamin C also helps keep the glutathione that is produced from the Cysteine in its reduced form so that it can continue acting as an antioxidant.
N-Acetylcysteine can inhibit blood clotting by increasingprothrombin time.
Hence, in combination with other anticlotting agents, such aslow-dose aspirin, ginkgo, or fish oils, blood-clotting time could be excessivelyextended.