I’ve read that lactic acids 5% + AHA is the mildest chemical exfoliant and helps congestion. It says to put on in the evening but do I use it like a toner? And use a lot of product? Or smooth it on where I most need it and then apply Buffet etc? I thought my night time regime could be cleanser, lactic, buffet, granactive retinol. Does this sound ok? In the morning it’ll be cleanser, buffet, moisturiser. Is this all ok? I’m 50 with ok ish skin but have blocked pores on chin & nose but never spots, I’ve fine lines etc.