Imagine a soft, squishy sponge, not unlike your favourite comfy pillow. Except this one’s for your face. The Konjac sponge originates from Japan and is made from the natural fibres of the Konjac plant — think of it as the sweet potato’s cousin. This little treasure has been a staple in Japanese skincare for over a century (yep, they knew what was up way before we did!).