Best for beginners: 0.01% – 0.03%
These are the lowest concentrations of retinol. Start with this if you are not attuned to the sensitivity of your skin or if you’re completely new to using retinol.
Best for people who want more effects: 0.04% – 0.1%
When you want to take it to the next level, go for creams and serums with more advanced concentrations. If, after a few weeks with the beginner percentage, you find that you don’t have any telltale signs of irritation like redness or peeling, you can bump it up to a higher percentage. This will give you more benefits for wrinkles, and other problems, and you will see quicker results.
Best for people who can tolerate retinol well: 0.5% – 2%
This is the highest dose of retinol, which is great for tough skin that tolerates retinol well. You have to be even more careful with adding this concentration to your routine because, with a more potent dose, you also get more irritation. Remember, you will still get effects with a lower concentration, just at a slower pace, so go slow and be patient.