You might know pigmentation as hyperpigmentation, age spots, freckles or sunspots. The colour of your skin is determined by the level of melanin (or pigment) as defined by your ethnicity and exposure to sunlight. Melanin production increases with continued exposure to the sun as it attempts to protect the skin against harmful ultraviolet rays. Pigmentation is a chain reaction in response to damage being inflicted to your skin. The appearance of pigmentation is often evident alongside inflammatory skin conditions (i.e. acne) and a skin may be more susceptible to pigmentation during hormonal changes.