A blend of powerful essential oils to keep toenails looking good A Napiers' formula developed after research herbalist Monica Wilde travelled to the hot and humid coast of West Africa and formulated Funki Foot Ointment that uses a blend of oils renowned for keeping feet fresh and that help to create an unfriendly environment for bacteria and fungi. Napiers Funki Nail Oil contains the same essential oil blend and helps to keep toenails clear and healthy. May also help to discourage nail biting of hand nails. Also try our Funki Foot Ointment and Funki Hand & Foot Soak.