What skin condition is characterized by both thickened skin and excess oil production?

The skin condition characterized by both thickened skin and excess oil production is acne vulgaris. Acne vulgaris typically manifests as a result of hair follicles becoming clogged with dead skin cells and excess sebum (oil produced by the skin). In this condition, the body often increases oil production in response to certain factors, such as hormonal changes, which can lead to not only active breakouts (pimples) but also a thickened appearance of the skin in areas where the acne is prevalent.

Acne vulgaris is differentiated from the other listed conditions in that it specifically involves the interaction of oil production and clogged pores. Other skin conditions may present with some symptoms that appear similar in isolated aspects but do not share both key characteristics — thickened skin and excessive oil production — that define acne vulgaris. This condition is particularly common among teenagers and young adults due to hormonal fluctuations, but it can affect individuals of any age. Understanding this condition helps in developing appropriate treatment plans and product recommendations for those affected.