(R.S.G) A little too strong for me
After using 0.1% retinol for several months, I felt ready to try my retinol tolerance and see if it could take a higher percentage. However, unlike other retinol products I have tried, Cosrx uses PURE retinol and not just retinol derivatives which means it is stronger than most other retinol products you can find in the market.
I had taken this into consideration prior but still decided to test this out, fully knowing the risk. Unfortunately, I was right to worry as this 0.5% pure retinol oil was definitely too strong for me and I felt a strong stinging sensation even though I only applied a small amount. It is also possible that I am a bit more sensitive to retinol than others as this 0.5% oil is also marketed to beginner users of retinol so there may be others who can tolerate this better than I can. For those who are sensitive, I’d recommend applying a very small amount using the sandwich method (moisturiser-retinol-moisturiser) and staggering your application to every 3 days.


