Gentle exfoliation between 1 and 3 times a week has cleared this up for me. I'm not sure if I've seen a change in blackheads specifically since I became a vegan, although the only time I break out is if I go crazy with new skin products or makeup.
Home remedies may work for you as they work most of the times for me.For the treatment of blackheads apply a poultice made of grated potatoes on the skin. This remedy is also useful home remedy for blackheads.
Make a paste by mixing 3 tablespoons of honey and 1 teaspoon of cinnamon powder in a bowl. Apply this paste on the blackheads before sleeping and wash it next morning with warm water. Repeating this for two weeks will remove blackheads and is also useful blackheads treatment.
Applying a combination of one teaspoon of coriander juice and half a teaspoon of turmeric powder is one of the most successful natural home remedies for Blackheads and Pimples on face.(for more infomation you may visit http://www.medexpressrx.com/blog)
I had large pores/blackheads on my nose for years and i was sooooo upset by it. The simplest thing has COMPLETELY cleared them up. I take a bit of baking soda, add a tiny amount of water and gently exfoliate my nose with it for about 10 seconds. Then I leave the paste on my nose for about 3-5 min and wash it off. Now this is a natural remedy however, some argue that baking soda can mess with the ph level of your skin so to combat this, natural remedy sites say to mix some distilled apple cider vinegar with water and use it as a toner on your nose after using the baking soda paste. this has honestly worked for me and i suggest giving it a try. Plus its sooooooo cheap! Good luck!
After about a month of going vegan I saw a change in my skin - blackheads were becoming smaller and starting to clear up. I've had a few slips recently, so my skin isn't as clear anymore. Other than going vegan, the only thing that worked for my blackheads was Dr. Hauschka's skin care line. I used the cleanser, toner and rose cream; all for sensitive skin. I would still be using it, but its not sold where I live anymore.