Each of the following essential oils are useful in reducing skin pigmentation (ageing spots/dark spots on skin).
Read through the following information and have a play around with making a blend you like and can use on your face to reduce age spots.
For best results apply only to area where dark skin is occurring, maybe use a cotton stick for dabbing lotion directly onto area.
NOTE: you will notice a number of essential oils listed here help with acne; acne scarring can lead to skin discolouration/pigmentation, especially if breaking out/getting blemishes later in life.