Good Hair Day, commonly known as ghd, is a manufacturer of hair care products based in Leeds, UK. GHD leads the market for hair straightening irons and is sold in over 50,000 salons worldwide. The company was the first hair tool sponsor of the Victoria's Secret Fashion Show, and is endorsed by celebrities including Victoria Beckham, Madonna, Gwyneth Paltrow, and Jennifer Aniston.
Martin Penny, Gary Douglas, and Robert Powls founded ghd in 2001. The three collaborated to buy the rights to a hair straightening iron from a South Korean inventor. The brand quickly took off organically, and the company did not even begin advertising until two years after its launch. By then, hair salons and word of mouth carried ghd to £12 million, against a forecast of between £3 million and £4 million.