Thank you...was following that study...they mention four months...I have been wondering if that dose can be taken indefinitely ...it has improved my AK a lot already after one month ...not sure but seems to affect my weight?...but skin looks great...smooth and big pores all gone etc
Peat said up to 1g of niacinamide is probably safe for long term use. Studied with HIV patients, MELAS, or kidney disease administered even higher doses for much longer and did not see bad side effects when the doses was below 3g daily. I think 500mg daily is probably enough for most people for general disease prevention and can be used indefinitely.