Not only do both formulas in the set feature the same comforting scent (a mix of linden blossom, chamomile, and cedarwood), but the packaging of the Wildsmith Skin Compostable Handwash and Lotion Duo (£50) is made from mycelium, which is compostable. Yes, really. What is mycelium you ask? It's the vegetative root structure of a mushroom — an organic material that is then grown around a mould to form a custom-sized, sturdy structure (like these bottles) to be used in place of plastic.