I have been using this on and off for a few weeks now, at night for the most part. I can't say that I have less wrinkles because I don't have any wrinkles to being with. However my skin does feel softer and smoother.
The instructions are simple: apply to clean washed face. Gently massage into your skin. Use twice daily morning and evening.
I will keep using this as part of my daily face routine. It is always good to start up a good face cleaning routine, and make sure you use things that are good for your skin. Such as vitamin C is really great for skin.
You can get your Ferulic Vitamin Serum on Amazon for $24.99. Not a bad deal.