US iHerbJarrow FormulasVegan Methyl Folate, 400 mcg叶酸 · 胶囊60 count680 mcg DFE‡标签每份的成分含量 · Folate (400 mcg as (6S)-5-MTHF [(6S)-5-Methyltetrahydrofolate Glucosamine Salt) 选择
US iHerbNOW FoodsMethyl Folate, 1,000 mcg叶酸 · 片剂90 count1,700 mcg DFE [1,000 mcg (6s)-5MTHF**]标签每份的成分含量 · Folate [from Quatrefolic® (6S)-5-MTHF** Glucosamine Salt] 选择
US iHerbDoctor's BestFully Active Folate 400, 400 mcg叶酸 · 胶囊90 count40 mg标签每份的成分含量 · Vitamin C (as ascorbic acid) 选择
US iHerbDoctor's BestFully Active Folate 800, 800 mcg叶酸 · 胶囊60 count800 mcg DFE**标签每份的成分含量 · Folate (as (6S)-5-methyltetrahydrofolic acid, glucosamine salt) (Quatrefolic®) 选择
US iHerb21st CenturyFolic Acid, 400 mcg叶酸 · 片剂250 count667 mcg DFE (400 mcg Folic Acid)标签每份的成分含量 · Folate 选择
US iHerbLife ExtensionOptimized Folate, 1,700 mcg DFE叶酸 · 片剂100 count1,700 mcg○标签每份的成分含量 · Folate [as (6S)-5-Methyltetrahydrofolate, calcium salt] 选择