Detailed answer

Uneven skin tone is often caused by hyperpigmentation, which is an overproduction of melanin resulting in dark patches or spots on the skin. Hypopigmentation, on the other hand, is a condition characterized by lighter patches due to a decrease in melanin production. Redness is another common type of uneven skin tone caused by inflammation, irritation, or conditions like rosacea. These types of uneven skin tone can be triggered by factors like sun exposure, hormonal changes, acne, aging, and other skin conditions. It's important to identify the specific type of uneven skin tone to determine the most effective treatment approach.