Well here is my two cents worth.
Throughout my teens, I never had so much as a zit. I pretty much had fantastic skin
sigh. However during my mid twenties I started to break out firstly just on the chin area, then after a few years I started to break out on my forehead.
I think what triggered all this was hormonal issues as I came off the pill after many years and my diet had not changed (I've always had a pretty healthy diet).
Over the past couple of years its gotten progressively worse, and my confidence has taken a bit of battering. Ive tried giving up dairy (and I love cheese), gluten, sugar etc the list goes on. Tried every bloody brand of product, expensive and cheap. Tried going back on the pill. NOTHING worked. I could not go on accutane for health reasons.
So I gave up. And what I have found that is working for me - I have not had any major breakouts over the past few weeks (Yay

) is doing nothing. I put nothing on my face, I wash my face in the morning and evening with warm water for a few minutes using the tips of my fingers in gentle circular motions and then pat dry with a clean towel. I use Roc moisturiser just aroung my eyes (im nearly 31 so I gotta try and keep those wrinkles at bay). I try to have as many makeup free days as possible, which hard when all you want to do is try to conceal the problem. When i do use makeup i use a Roc cleansing cream which i make sure is taken off by using the water cleansing method.
If anyone has had similar problems to me I hope this helps. I really believe that putting piles of crap on your skin and stripping it of its own natural healing abilities will make matters worse (and only serves to line the pockets of all these anti acne brands).
Good luck everyone!