Use in Aromatherapy : To be focused and to have better memory and increased productivity in the workplace : Add 6 drops of lemon essential oil in the diffuser for essential oils or alternatively 4 drops along with 2 drops of basil and two drops of rosemary . Stimulant and tonic Massage : Add 20 drops of lemon and rosemary 15 drops in 100ml almond oil and massage the entire body . For louder , smooth and shiny nails : Add 5 drops of lemon in 10ml jojoba or rose oil and massage the nails. For washing dishes especially when you fish : one drop in the sponge . For air freshener and general cleaning liquid : Add 10 to 15 drops in 100ml water in a spray bottle . In cooking : For cakes and biscuits : Add 4 drops lemon 500g mixture .