The sale of products containing microbeads is now banned across England and Scotland, Defra has confirmed.
As part of government efforts to prevent these plastics ending up in the marine environment, retailers can no longer sell rinse-off cosmetics and personal care products containing microbeads.
These tiny plastics were often added to products including face scrubs, soaps, toothpaste and shower gels.
Just a single shower is thought to send 100,000 of these beads down the drain and into the ocean, where it can cause serious harm to marine life. A ban on manufacturing products containing microbeads previously came into force in January this year.