Your search for "magnesium" revealed the following:

Sale price £29.38 Regular price £40.00 Sale
Sale price £69.26 Regular price £90.00 Sale
Sale price £127.95 Regular price £150.00 Sale
Sale price £137.50 Regular price £150.00 Sale
Sale price £76.99 Regular price £90.00 Sale
Sale price £39.80 Regular price £50.00 Sale
Sale price £129.90 Regular price £150.00 Sale
Sale price £79.99 Regular price £90.00 Sale
Sale price £13.99 Regular price £20.00 Sale
Sale price £50.35 Regular price £70.00 Sale
Sale price £39.85 Regular price £50.00 Sale