Your search for "magnesium" revealed the following:

Sale price £32.99 Regular price £40.00 Sale
Sale price £32.99 Regular price £40.00 Sale
Sale price £13.99 Regular price £20.00 Sale
Sale price £13.99 Regular price £20.00 Sale
Sale price £69.99 Regular price £90.00 Sale
Sale price £43.25 Regular price £50.00 Sale
Sale price £130.89 Regular price £150.00 Sale
Sale price £43.25 Regular price £50.00 Sale
Sale price £34.99 Regular price £50.00 Sale
Sale price £57.99 Regular price £70.00 Sale