Kevyn Aucoin is available again in the UK from SpaceNK and has been available for some time from MiseBeauty.com in Ireland (who ship internationally.) The SpaceNKs I've been in have had very limited products available and the whole range still isn't available online. Mise has the whole range available, including the Expert Lip Tint (lipsticks).
I've had my old Samilke (on the right in this picture) for about 7 years, so I decided it was probably time to buy a new one (on the left). I bought it from Mise Beauty.