Swanson Vitamins Buffered C Powder, Unflavored, 4 oz (113 g)
113.4g · Item · Unflavored
Prices across 1 retailer
updated dailyCheapest first, using today's offer price where one is running.
Some retailer links are affiliate links — we may earn a commission at no extra cost to you.
Price history
Best price so far: £13.35 at Iherb on 2 Sept 2026
Close to the typical price of £13.35 over the last 90 days — a drop may be worth waiting for. Set an alert and we'll tell you.
About this product
Magnesium Ascorbate PowderImmune SupportGentle on The Stomach Vitamin Supplement Vegetarian If conventional vitamin C supplements don't sit well with your stomach, Buffered Magnesium Ascorbate Vitamin C Powder from Swanson Premium is an excellent alternative. Vitamin C is one of the most important dietary antioxidants for maintaining good health, which is why it is among the most widely supplemented vitamins. But for some people, the vitamin's acidity can lead to stomach discomfort, especially at higher intakes. Our formula features vitamin C that's buffered with magnesium to make it gentler on the digestive system.