(On the SkinMedica Retinol Complex’s packaging, the minuscule print was illegible even when a tester used a magnifying glass.) Trader Joe’s Retinol Night Serum is available only in stores.

This all-in-one label maker has a bright display and a big keyboard, and auto-cuts labels as they print. But it’s heavier than our top pick and needs six AA batteries. A pared-down version of ...