I am looking for retinol for anti aging but I am completely confused. I currently use differin 0.1% which I am prescribed for acne though I don't have acne anymore and though I have oily skin I am mainly concerned with retinol for anti aging as I find niacinamide much more effective for the oiliness anyway.
I went on to the Boots website and was surprised that they have 2% and 5% formulations. Seems very high? If they're on the market why on earth do I need a prescription for 0.1?
Please don't suggest those 2 subscription services that are often recommended here as neither ships to my country. I am in the EU.
Any suggestions, especially cheaper ones, are much appreciated.