Qīngjié miànmó yì zhōu yòng yí cì jiù gòu le, yòng duō le fǎn'ér shāng pífū.
Once a week is enough for cleansing masks — overusing them actually damages your skin.
Tips
usage
清洁面膜 is the wash-off, deep-cleansing kind (often clay-based, e.g. 泥膜 nímó). Contrast with 睡眠面膜 (overnight gel) and 补水面膜 (bǔshuǐ miànmó, hydrating sheet mask) — they have different goals and shouldn't be substituted.