In the studio, I recommend the following routine to prevent or limit the amount of blackheads:

Cleanse the skin daily.

Exfoliate 3 x a week. Mask and Hydrate 2 x a week. Use a Corrective Hydroxy Acid Serum or cleansing scrub every AM to stimulate the exfoliation of cells. Use a Vitamin A Serum every PM to keep cells from sticking in th pores. Always use SPF protection after any exfoliation. A blackhead is a plug of dry, dehydrated sebum that gets stuck in your pores on the way out of your skin due to several reasons: Lack of water in your system. Excess dead cells blocking the opening to the pore. Excess Oil being Produced by you. Improper cleansing routine, oil not being removed. Products / makeup you are using or not using.