Your search for "magnesium" revealed the following:

Sale price £116.00 Regular price £151.96 Sale
Sale price £27.65 Regular price £30.00 Sale
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Sale price £36.99 Regular price £50.00 Sale
Sale price £46.99 Regular price £70.00 Sale
Sale price £168.99 Regular price £200.00 Sale
Sale price £64.90 Regular price £90.00 Sale
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Sale price £70.60 Regular price £90.00 Sale
Sale price £67.92 Regular price £90.00 Sale