Weirdly, I love La Roche Posay too - and it's really hard to get hold of. Basically, it's a physician's level product, so you can't just get it in department stores (even though it's owned by L'Oreal!!). Kathy Phillips in the Observer suggests getting it through mail-order from Hickey's pharmacy in Dublin, tel: 00 353 16790467 or www.laroche-posay.com) - though I don't know if this would work.