Another thing you should know about Retinol is that it breaks down in sunlight. All that really means is that it should be in opaque packaging that protects it from the sun, and that it’s most effective when you use it as a night treatment.
Finally, there are products out there with differing strengths of the active ingredients. The higher the concentration of retinol in a product, the faster the results may become apparent, however, starting at the highest concentrations isn’t necessarily the best idea. Because of its oil-reducing effects, retinol can produce some redness and skin irritation, especially at the higher concentrations. It’s generally a good idea to start with a product that’s milder, and only step when necessary. Even in the milder concentrations, retinol is still very effective, it just takes more time to do its work.
Products containing retinol are readily available over the counter, and at a wide variety of price points. You can get it in a prescription strength, called Retin A, but it’s also available in non-prescription creams and serums, which having a lower concentration of the nutrient, are also gentler to the skin.