Clean & Clear Advantage Gel With two percent of salicylic acid and an oil-free formula, the Clean & Clear Advantage Gel (£4) is an easy and super affordable option for those looking to help clear up their skin. This treatment can also be used on black heads and white head. Pick up one at your nearest drug store and get ready to go out and have some fun, this treatment will take care of the rest! Image Source: boots.com Clean & Clear Advantage Gel £4 from boots.com Buy Now