Be cautious of the “more is better” theory with Retinol. Many brands claim to have 2.5% Retinol in their creams. This is false, and extremely misleading for consumers, perpetuating misinformation about how much Retinol is actually required to get anti-aging results. Why? It’s just not possible to keep 2.5% Retinol stable in your average face cream, and if you were to send any of these creams out to a third party lab, they would confirm that the actual percentage level is closer to 0.001%!!
But don’t despair just yet. More is not necessarily better. The higher percentage of Retinol, the greater the side effects, including skin redness, peeling, itching and increased light sensitivity. If you use a high percentage of Retinol, odds are your skin won’t be able to tolerate it and you’ll have to use it less frequently. Use it less frequently, and you see fewer results. This is what dermatologists call “non-compliance”, and is why they’ll recommend you start using Retinol 1-2 times a week and eventually work up to every other day as your skin adjusts.
The lowest clinically documented percentage for improving visible signs of aging using Retinol is 0.04%. This is an ideal percentage for treating wrinkles and discoloration without causing unnecessary side effects and causing “non-compliance”. In this study, scientists compared 0.04% to 0.075% retinol and discovered that 0.04% is actually better because it causes less irritancy but they still saw the same results in the skin: https://www.ncbi.nlm.nih.gov/pubmed/20078381
Advanced Clinicals Retinol cream uses this proven science, and a precise encapsulated form of Retinol called Reticap that remains stable until you apply it. This enables you to enjoy the benefits of Retinol without developing red, cracked skin and having to stop using the product. Try any of Advanced Clinicals’ Retinol products and you’ll see why it’s better to use stable, encapsulated Retinol every day with no irritation, rather than an unstable, massive dose once a week.