Best price: £4.63 (500ml)
It's a classic formula that’s been used for years, but the old Swarfega gel is feeling a bit left behind. The main reason is that it has no real abrasive qualities – it’s simply a powerful soap. It can still remove the majority of grease and oil on skin, but anything more deeply impregnated will likely remain. The unmistakable citrus smell and value help to make up for it.