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I’ve been taking these for a couple of weeks now, and my sinuses feel noticeably less congested on high-pollen days. The niacin gives a slight flush at first, but it settles quickly and the overall effect on my breathing has been steady.

The echinacea and vitamin C blend is exactly what I reach for when the pollen count spikes, and my breathing feels noticeably clearer within a few days. It’s become a steady part of my morning routine through spring.