Blemishes are clogged hair follicles. Follicles can become clogged for a variety of reasons ranging from uneven skin pH balance, harsh cleansers, stress, environmental elements and physical blockage (like dead skin cells and makeup).
Your body naturally produces its own oil called sebum to keep the outer layers of skin moisturized and healthy. Hair follicles become clogged with sebum and other surface impurities to form the blemishes we all know and love.
a simple breakdown...