In Dr. Lit-Hung Leung's study the dosage that was mainly used is 10 grams. This is ideally how much you should take to get the best results. However, do not begin taking 10 grams right away. Your body needs to get used to the high intake of B5.
Since you will be taking 10 grams a day, it is best to buy Vitamin B5 in capsules that are 500mg each. 1000mg (milligrams) is equal to 1g (gram). Therefore, 2 pills is 1 gram.
-For the first 3 days, you will want to take a dosage of 5 grams a day. This is a total of 10 pills a day. It is good to have it spread out throughout the day, so it might be good to take 5 pills in the morning, and 5 pills at night.
-When the 3 days are up, you will be moving up the full 10 gram dosage. This will mean 20 pills a day. Again, you will want to have a steady supply of B5 throughout the day, so taking it in intervals is important. You will be taking 5 pills, 4 times a day. It is very key to be as consistent as you can.
-Keep taking the vitamin B5 for 3 months. I saw results after the 1st week, some people see first results after 2 weeks. After 3 months you should hopefully have clear skin. Make sure you take the b5 consistenly and EVERY DAY for 3 months. (Note: Some people have an initial breakout. This can be caused from pre-existing pimples that are just pushing through. But keep with it, it WILL help you.)
-After your acne has finally cleared up, you will still want to continue taking B5, but not in such high doses. Maybe drop down to 5 grams a day. If you get more acne, increase your dosage immediately, and then adjust to a dosage where you do not break out. Overtime you can keep decreasing.
-Another point I would like to mention is to make sure you take vitamin B complex vitamins. Taking this much vitamin b5 might cause a deficiency in the other b vitamins. I just take 1 pill of the complex twice a day.