I've had cystic acne and spots for ages. Recently the cystic acne has mainly gone but now I get whiteheads (anywhere between 1-8) usually on my chin. I use the cerave cleanser with a flannel and the cetaphil moisturiser, which are supposed to be non-comodogenic. My chin is quite dry and flaky so if I don't moisturise, it dries out more but if i do = whiteheads. I've just bought the superdrug serum and that isn't pore blocking on my forehead and cheeks but I haven't tried it on my chin for fear of more whiteheads. I am late twenties. Any advice?