ULTA21天半价美妆盛典开启，Cosrx精华、IT粉底刷半价

ULTA Beauty 春季美妆盛典开启，每天不同半价惊喜 https://www.ulta.com/promotion/21-days-of-beauty?
Cosrx精华半价 https://www.ulta.com/p/advanced-snail-96-mucin-power-essence-xlsImpprod15641052?
IT粉底刷半价，好用 https://www.ulta.com/p/airbrush-omg-foundation-brush-106-xlsImpprod11061084?

粉刷是常常要换的还是要洗的？