Nidah: So, the chemicals in the peel are salicylic acid, lactic acid, and malic acid. Salicylic is extremely exfoliating in nature, but it's also anti-inflammatory. And then there's lactic acid ...

One such method involves using malic acid found in fresh apple peels. This acid has bactericidal, antifungal, and whitening properties. Simply spread the peels on a tray and place it in an oven ...