There have been a few over the years.
I really was madly in love with the Olay Pre Essence Miracle Serum. I was lucky enough to be on a trial team for this product when it first came out and I loved it so stuck with it right up until last year when it became impossible to find. I emailed Olay several times regarding this and they kept telling me that they are still making it but they were very unhelpful with where I could buy it. It used to be in the supermarkets and priceline but now its no longer stocked. I begged Olay for help but they were so dismissive that I have now dropped that product and to be honest my skin is not suffering.
Another product I love is the old maybelline color tattoos that come in the little tubs. They make a brilliant base for my powder eye shadows and again I have used them for years but now maybelline have color tattoos that are a bit like eye pencils and the formula is not the same. I have 4 of the little tubs in my possession and treat them like gold.

The skincare line that works best for me has been the greatest find I could have. It has given me the best skin I’ve ever had