常见问题解答 截至 2018 年 8 月，iHerb 使用第三方独立实验室 ABC Testing、Eurofins 和 Alkemist 进行产品测试。使用第三方独立实验室可确保结果的客观性和公正性。
iTested 确认产品补充剂成分表和/或营养成分表提供的信息是准确的。还对产品进行了如微生物分析和重金属分析之类的测试，以确认清洁标签标准。
每份 iTested 产品文档都注明了测试方法。
将每6个月对产品进行一次测试。
Folate is the naturally occurring form of vitamin B9 found in foods, while folic acid is a form commonly used in fortified foods and many supplements. L-methylfolate is another form used in some supplements.
Some folate supplements contain folate as the only active ingredient, while others are formulated with additional B vitamins or other nutrients. Review the Supplement Facts panel to compare formulations.
Consider the form of folate, dosage, serving size, product format and any additional ingredients. Review the Supplement Facts panel and product details to compare options.
Product labels identify the form of folate used, the amount per serving and any additional ingredients. Review the Supplement Facts panel and product details when comparing options.
Folate supplements are available as folic acid, folinic acid, and L-methylfolate, in capsules, tablets, and combination B-vitamin formulas.
