If you think toners are a skincare product reserved only for teenagers struggling with acne, let me enlighten you. The toner category has gotten a revamp in recent years, and 40-year-old shoppers say this $15 milky toner is the only thing that keeps their skin silky-soft. Toners used to be filled with drying astringents and acne bacteria-fighting ingredients that kept oily skin in check, but also dried it out. The rise of K-beauty has given toners a bit of a facelift, though, and now we're seeing a rise in soothing and hydrating formulas.