What is the purpose of sunscreen serum?

A sunscreen serum gives you real sun protection in a light, fast-absorbing texture that feels more like skincare than traditional sunscreen. The goal is to make daily SPF easy enough that you actually wear it. Many sunscreen serums also add skin-benefiting ingredients, so one step protects and treats. Day Drops SPF 50 is a good example. It delivers broad-spectrum mineral protection with 25% micronized zinc oxide, while vitamin C brightens the look of uneven tone and green tea polyphenols help defend against environmental stress. It layers smoothly under makeup and leaves no white cast. Daily SPF also protects results from treatments like Retinu and Fade Away, since sun exposure can undo progress on dark spots.