I have been taking B3 for some time and yes, it has a flushing effect, that feels hot and itches but it does seem to help me with insomnia more than other natural products and my dad uses it for depression. It does help to take it after a meal to have less of the flushing effect and I do experience less flushing once my body got used it.
Love the one a day so much easier .
Natural Factors PGX Daily Ultra Matrix 750 mg
Innovite DDS-1 Probiotics V-caps
It's beginning to help my neuropathy