AC Collection Blemish Spot Clearing Serum

AC Collection Blemish Spot Clearing Serum by COSRX is catalogued as 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. Whether it is discounted this week says more about the shop's stock than about the product. Keep the lid closed and the pack out of direct sun — light and air degrade most actives faster than time does. The cheapest listing is not automatically the best deal: delivery and any code applied at checkout decide that.