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Amazon.com: NaturesPlus C-Ascorbs Buffered Vitamin C, Sustained Release - 4000 mg, 180 Vegetarian Tablets - Super Potency Immune Support with Mineral Ascorbates, Antioxidant - Gluten-Free - 45 Servings : Health & Household
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Amazon.com: Sufficient-C high-dosed 4000 mg. Non-GMO Vitamin C - Lemon Peach Immune-Ade Drink Mix 250 Gram - refreshing, thirst quenching drink mix offering generous dosing of l-lysine, bromelain & a 96% pure,
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Amazon.com: Dr. Keith's Own Super C - High Dose 4000mg Buffered Vitamin C Powder with D-Ribose, Glycine, MSM - Highly Absorbable, Stomach-Friendly, Daily Immune Support - Unflavored, 7.1 oz (30 Servings) :
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Amazon.com: Sufficient-C high-dosed 4000 mg. Non-GMO Vitamin C - Lemon Peach Immune-Ade Drink Mix 250 Gram - refreshing, thirst quenching drink mix offering generous dosing of l-lysine, bromelain & a 96% pure,
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