I tried it, as a newer product, but as the "classic" purple perfectionist, it is NOT. Don't waste your money. Get the CP+R directly.

The price and quantity are very good. The price-to-quantity ratio is very good. I only use the serum at night on my face, neck, and chest, and only during the winter months because the instructions say it requires a lot of caution in sun exposure. Sun protection should still be used even a week after use. This creates some uncertainty. I don't have an opinion yet on its effectiveness. It definitely requires consistent use.