I had my forehead done over a week ago. You are supposed to wait a full two weeks to see full results, which I may follow up with later.
I'm 40 and my largest complaint was deep furrows and frown lines in my forehead. The injection specialist shot up my entire forehead and gave me two shots around the eye area for "lift".
The horizontal lines on my forehead are almost invisible, but the frown lines have stayed put, in spite of the fact I can't move that area. The injection specialist suggests I may need to return for filler in this area.
I like how much smoother my forehead looks but have mixed feelings about how my expression looks when I laugh or talk. One suggestion I will give to the younger ladies (and guys) out there. If you know you don't like wrinkles, start getting botox BEFORE they set in. When you smile or frown, the lines you see will eventually permanently crease in your skin. I wish I could have gotten to my frown lines 5 years ago. Now I may need to spend much more money for filler.
Overall I think it is worth at least trying.