Skin1004 tone brightening ampoule

4% niacinamide and 2% tranexamic acid are effective percentages, and should be fine for sensitive skin, but- always patch test first

It’s great for sensitive skin - not only is it in low percentages, it’s also utilised centella for soothing the skin. I’d say be consistent with it and give it time if you want to see any effects with brightening x

That’s a low percentage of both and shouldn’t irritate sensitive skin.

Be careful with this one, even though the % are low, the formula can still possibly cause irritation.

I have heard from a doctor before that niacinamide between the dosage of 2-5% is good while 8% and above will dry your skin. So, the 4% should be good and quite effective for routine use.