NusaPure Nicotinamide 500mg Polypodium Leucotomos Extract 2400mg per Vegan Caps - 150 Count (Non-GMO, Gluten Free, Bioperine)

Highly reccomemd! This protects your skin and repairs UVdamage

So far, so good!!!

stupidest thing ever. Amazon asks you to review some product that takes years to see any effect, if any. How can you truly rate a vitamin's worth? It's supposed to help reverse skin damage from the inside. How in the world will I know if it works or not!? I have read articles saying the ingredients should be beneficial. Therefore, I chose this brand, for some reason. I have given a neutral review, as I have no idea if it's going to work for me or not.

I really wanted to like these, but they give me terrible headaches. The Tolerable Upper Intake Level of Niacinamide for adults is 35mg, and these pills have 500mg each.I use Heliocare, but it's so expensive. I've never had any side effects with Heliocare, but I've only used the regular version. I've never tried the "advanced" version with Niacinamide/Nicotinamide. I guess the Niacinamide is giving me the headaches with these pills (it's a known side-effect).I also think it might have caused fatigue. It's not a well-documented side-effect, but some people take Niacinamide at night as a sleep aid.I wasn't interested in Niacinamide; I just wanted Polypodium Leucotomos from the leaf of the plant, which is supposed to be more effective than the root. This company makes another Polypodium Leucotomos supplement without the Niacinamide, but it's from the root. I wish they made a version from the leaf without the Niacinamide.These aren't returnable. I wouldn't recommend trying them if you don't know if you can tolerate huge doses of Niacinamide. Maybe try a cheap Niacinamide supplement first to see if you can tolerate it.I can't say how well they work, because I was never able to use them consistently enough to evaluate.