Hero Nutritional Products, Yummi Bears, Echinacea + Vitamin C + Zinc, 40 Yummi Bears US$ 24.99 ★★★★★ 4.9 (19 reviews)
American Health, Ester-C with Citrus Bioflavonoids, 500 mg, 240 Vegetarian Capsules US$ 57.33 ★★★★★ 4.7 (30 reviews)
Emergen-C, Vitamin C, Tropical, 1,000 mg, 30 Packets, 0.32 oz (9.2 g) Each US$ 28.19 ★★★★★ 4.6 (29 reviews)
Solgar, Naturally Sourced Vitamin K2, 100 mcg, 50 Vegetable Capsules US$ 31.55 ★★★★★ 4.2 (21 reviews)
Now Foods, Effer-C, Effervescent Drink Mix, Elderberry, 30 Packets, 5.82 oz (165g) US$ 23.05 ★★★★★ 4.0 (20 reviews)
California Gold Nutrition, Buffered Vitamin C Capsules, 750 mg, 60 Veggie Capsules US$ 10.03 ★★★★★ 4.1 (9 reviews)
