Dark Spot Correcting Serum

What you are looking at is Dark Spot Correcting Serum by 111SKIN, a skincare product. Active ingredients can be effective and irritating at the same time, which is why the usual advice is to introduce one at a time. Start with a small amount every other day and build up frequency once your skin has settled. Discounted listings come and go, and rarely at the same shop twice. Keep the lid closed and the pack out of direct sun — light and air degrade most actives faster than time does. Whoever is cheapest today may not be tomorrow, so it is worth looking again before settling on the best deal.