If the above methods don't work, you may need to use a drain snake:

Unblocking a bathroom sink without a plunger is absolutely possible—often even better than using a plunger, since sink drains have overflow holes that reduce plunging pressure. The best method depends on what’s causing the blockage (hair, soap scum, or grease).

This is the simplest first step for clearing minor clogs caused by soap scum or grease. Boil a large pot or kettle of water.

Most methods take 5–15 minutes. If none work after two attempts, the clog may be deeper—then you’ll need a plumbing snake or call a pro.

Best for: Grease/soap scum

Best for: Stubborn clogs