This is the amazing $1 shampoo everyone’s bringing home from the US

If you're a beauty addict, a stroll through the hallowed aisles of an American pharmacy will produce more than a few treasures, but one cheap and cheerful product is top of the want list this year.

A $1 shampoo tipped by style maven Rachel Zoe as a bargain that really delivers is the hottest beauty souvenir from the US this year. Alberto VO5 Tea Escapes Revitalizing Shampoo Vanilla Mint Tea is the top-rated shampoo on Walgreens.com. Its 'five vitamin formula' promises vibrant, beautiful hair and fans say the scent is heavenly and lasts all day. At a dollar a go? Better splash out on the conditioner too. Just remember to wrap them carefully when you pop them in your checked luggage.