Hi ladies, have been eagerly devouring the threads, would welcome any insights into AHA vs BHA + retinoids for acne, plus top tips for oily but dehydrated skin! I’ve read the threads, but am still confused about the right combo of actives for my particular skin concerns, so would be super grateful for any thoughts anyone may have 
(sorry for essay, tried to provide sufficient detail as requested, possibly rather too much detail - apols in advance!)
Skin type: Oily + dehydrated
Age: 35
Primary skin concern: Acne (hormonal due to PCOS, and a shitload of hormones for IVF which are probably confusing the hell out of my skin), crepey dehydration lines
Routine:
AM:
Hot cloth cleanse with Liz Earle C+P
Pixi glow tonic
Serozinc
Eucerin hyaluron filler serum
Eucerin hyaluron filler oil free day lotion (SPF 15)
PM :
Hot cloth cleanse with Liz Earle C+P
Some nights add in Clarisonic + Avene gentle gel cleanser (when I can be bothered)
Routine thereafter is mostly:
Alpha H Liquid Gold
Estee Lauder ANR
Possibly some Clarins Blue Orchid oil depending on how dehydrated I’m feeling
Institut esthederm intensif hyularonic night cream (freebie from a mate who's a beauty editor - previously used Eucerin Hyaluron filler night cream or Givenchy Hydra Sparkling)
I do (I know, I know, BAD banana) have some 0.025% tretinoin cream from an overseas pharmacy where you can buy it OTC - so as it’s not been prescribed by a dermatologist I am very aware that this is a very bad idea! I have been swapping the above post cleansing routine for slapping on the tretinoin every few nights - however I’m not seeing a palpable difference, so I suspect it’s either because I’m not using it nightly or it’s not an effective formulation. And that I might be better with a milder retinoid from a reputable brand rather than a questionable tube of stronger tretinoin? (please do advise oh wise skin gurus!)
Makeup : eg. no/light coverage/medium coverage/heavy coverage
Before TTC when on the pill and PCOS was under control, had brilliant skin and just wore Laura Mercier oil free tinted moisturiser
Now my PCOS is raging and skin is berserk with IVF meds, I need more coverage. So use Smashbox oil free photo finish primer, followed by Lancome Teint Miracle foundation + Nars creamy concealer + Innisfree no sebum mineral powder
Clarins instant smooth perfecting touch polyfilla for some little forehead creases (not sure where in the layering I should be using this!)
Occasional treatments:
Aesop spot gel as a topical treatment on my spots
Try to do a weekly face mask. Usually one for my spots, followed by one for hydration
So either REN clearcalm 3 clay mask OR Dr Sebagh deep exfoliating mask
Followed by Origins Drink Up, or Drink Up Intensive if it’s feeling particularly thirsty
Things I've tried in the past with disastrous results:
I didn’t get on with PC 2% BHA gel, it felt sticky and serum didn't sit well on top to hydrate my thirsty skin. Maybe I should have tried a BHA liquid instead?
Skinceuticals CE Ferulic - expensive, stinky, don’t remember seeing any benefit
Foaming cleansers - nuff said
Hydraluron - hated this!
I tried Panoxyl 10% benzoyl peroxide for the acne but found it just too drying, everything felt super tight
Things that are really working well for me now:
Erm - my foundation?!
My skin doesn’t feel irritated by anything I’m using, but it isn’t looking particularly brilliant. My skin feels comfortable and un-parched after the Eucerin serum and day cream, but don’t think I feel especially well hydrated (note to self: drink more water), and the crepey lines / crow’s feet around my eyes are getting worse
Any dietary/health concerns/pregnant:
I eat too much sugar which isn’t doing my PCOS acne any favours. Having a very hard time with fertility treatment that’s going very badly, miscarriages and a cancer scare, so have been self medicating with chocolate!
Diet isn’t brilliant at the moment - undereating and underweight, weight loss due to stress. Taking all my vitamins (incl probiotic and omega 3) but not getting my 5 a day, Must try harder.
We’re doing fertility treatment but trying to work on my uterine lining to prepare for an IVF transfer - my Dr has OK-ed me to use retinoids until we come to do a cycle, because I can’t conceive at the moment
What I'm willing to spend on a single skincare item: No limits
I specifically [want help with/am looking for a product to/am curious about trying]:
Help with acne and dehydration please!
Should I be using AHA or BHA?
Retinoid as well as or instead? If so, which retinoid?
Something more hydrating than the Eucerin - Hylamide perhaps?
Crows feet - should I be using an eye cream?
Thank you SO much in advance!!
PS Hope you have a FAB night out in your fab dress hollin!