Our whole team are huge coffee drinkers, multiple cups a day just to keep ourselves going. Over time, we all started noticing our teeth were getting stained, and nothing seemed to help. We tried every whitening toothpaste and strip we could find, but the results were always disappointing. Then we discovered niacinamide. We honestly weren’t expecting much, but it completely transformed our smiles, almost magically, making our teeth look brighter than they had in ages. It worked so well for all of us that we couldn’t keep it to ourselves.