Saw this offer advertised on page 49 of the latest issue (No 7) of Source magazine. This is a free mag which you can find at the entrance to John Lewis and Waitrose stores. You must grab a copy of this mag in order to be able to get the sample:

'New from Lancome is Absolue Ultimate Bx Serum, £100 for 30ml, aimed at the skincare concerns of women over 50. As well as containing a powerful and complete range of anti-ageing ingredients, this serum is enriched with Kojic acid, which helps to reduce the appearance of dark spots and even the skintone. It’s available exclusively in John Lewis stores from 13 to 30 September, and Source readers can pick up a complimentary sample by bringing this page to the Lancome counter’.

There’s also a competition to win 10 of these products, have posted the details on the postal competitions thread.