In case this helps anyone out, there’s 25% cashback via TopCashBack at the clarins website + 6 free samples of your choice until midnight tonight.
you should also get a £10 referral bonus if you sign up to topcashback using one of the referral links on the bargains & referrals board.
great timing for me as I was about to buy my serum for John Lewis but will get from Clarins for a lovely £15 back now!