常見問題
iTested 確認 產品補充資料框和/或營養成分框 上提供的資訊正確無誤。 產品還經過測試以確認 符合清潔標籤標準，例如微生物分析和 重金屬分析。
測試方法詳見各個 iTested 產品 文件詳見各個
產品會每 6 個月測試一次。
NAC (N-acetyl-L-cysteine) is a modified form of the amino acid cysteine commonly used as an ingredient in dietary supplements. Formulations and amounts vary by brand; review the product label.
No. NAC (N-acetyl-L-cysteine) and glutathione are different ingredients. Although related, they are not the same compound.
Review the product label for important warnings, precautions and directions for use. If you have questions about whether NAC is appropriate for you, consult your healthcare provider before use.
NAC is available as standalone capsules, powders and in combination formulas paired with ingredients such as glycine.
NAC is generally sold as a single, standardized compound rather than having multiple chemically distinct forms the way minerals like zinc or magnesium do. Differences between products mostly come down to the amount per capsule, other paired ingredients, and capsule versus powder format.
