Los Angeles - Kate Moss has been seen clutching what appears to be sex drug amyl nitrate.

The British supermodel arrived at her North London home holding two small plastic bottles - featuring a skull and crossbones warning on the lids, a design which bears a resemblance to the potent substance which is also known as "poppers".

Legal drug amyl nitrate is also popular among clubbers who sniff the vapours to get a head rush. It is often combined with other drugs.

Earlier that day, Kate - who is dating rocker Jamie Hince - had left home to enjoy a shopping spree.

Upon her return, along with the two bottles, the 34-year-old supermodel was also carrying a bag containing exclusive Diptyque candles.

Kate isn't the only celebrity to be linked to poppers recently.

Sarah Symonds, who alleges she had a seven-year affair with Gordon Ramsay, claims the controversial TV chef used the substance during their sex sessions to enhance his performance in the bedroom.

- Bang