Is Your Supplement Routine Actually Working? This Device Will Tell You in 15 Seconds
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We may earn commission from links on this page. Each product featured has been vetted and chosen by our editors. My daily vitamin-and-supplement loyalty is probably more impressive than your longest Wordle streak. Rain or shine, on vacation or on deadline, my vitamins make it into my morning routine, every single day. But I take them with the same blind faith I bring to a new face serum and sort of just assume they’re doing something. Aside from the yearly checkup with my doctor, I’ve never had a way to actually confirm it. That’s the gap Nu Skin’s Prysm iO ($375) is designed to fill: a quick finger scan that measures the antioxidants in your skin to answer the question I ask every time I restock. Is any of this actually working?