I have just turned 50 and decided to get restylane under my eyes and botox between my brows. The doc (a dermatologist) used 3 vials of restylane and I have to say that I am completely happy with my results. I had huge bags under my eyes beforehand, and they were immediately gone! I was unprepared for the bruising though, as it was pretty extensive under one eye and was visible for about 10 days. I also had a slight asymetry of one cheek for a little while, but that was gone within a few weeks and no one else noticed it. Ever since I had it done, people have continually commented on how great I look - they can't tell what it is but I look a lot more rested and the botox took care of the frown line between my eyes. I will definitely do both again, and will consider the restylane for other areas of my face (ie, around my mouth). Great experience!
I don't like doing microderm when there is active acne as I find that this can irritate the skin. Starting a series of salicylic acid peels can help both the acne and pigmentation. Also Differin was recently made available over the counter which can be started every other night to help combat the acne. I always recommend moisturizing before applying the Differin with a non-comedogenic, oil free moisturizer.