Retinol has been and still is the most powerful anti-aging ingredient on the market. Not only does it reduce fine lines and wrinkles, but it also improves your skins tone, texture and pigmentation. When using a prescription strength or over the counter retinol, the earliest you'll start noticing results is in about three to four weeks, but Neutrogena just launched something that will give you instant gratification. After all, isn't that what we're all seeking? When you're young your cellular turn over rate is every 21 days and as you age it's about every 40 days, which is why your skin starts to look dull. Therefore, the earliest products kick in is about 21 days depending on your age. Neutrogena's Rapid Wrinkle Repair Line claims to use "accelerated retinol" so you'll see results in just one week, and yes, studies prove that women saw results that quick, which encouraged them to continue using the product.
Even though the main ingredient is retinol, the quick results came from a water extract that helps to repair your skin's barrier, therefore making it look better in a short amount of time. The retinol sinks deeper into your skin and its effects kick in as they normally would, a few weeks later after continued use. So is the retinol working faster, no, but Neutrogena found a way to give women what they want – instant results and efficacy over time.