In my scrambled menopausal brain whilst not sleeping last night I was trying to remember a facial SPF 50 I had via a feeebie (either advent calendar or gift with a magazine subscription....) probably about 5 years ago - it was excellent but I can't remember what it was!!! 
It wasn't a make up brand I was familiar with at the time but I'm sure at the time I googled it and it was spendy, hence why I didn't buy one , last night I was wishfully trying to recall what it was ......
I'm thinking it had Diamond as part of its name maybe , although that could be something else im trying to remember
Now I've started thinking about it I can't stop