What order skincare - hyaluronic acid/vitamin C/retinol/Paula choice bha so confused!!

[Janus]

I’ve got to the ripe old age of 50 and for years I’ve used a general serum (whatever was on offer!) and Elizabeth Arden plumping moisturiser with spf30 which I love. Now I seem to have invested in all the above but have no idea what order they should go in!!
So at the moment every morning I have a shower and use a very gentle facial wash from caudalie. When I get out I then don’t know what order to do anything but I tend to tone with Paulas choice bha, I’ve just discovered it and I honestly thing it’s amazing, pores which have bothered me my whole life have been vastly improved.
Next I tend to put on vitamin C and then my moisturiser.
When am I supposed to use the hyaluronic acid and the retinol then?!! Not sure what either is for but got talked into buying it 😂! I get so confused when I google so thought some beauty expert here would probably be able to talk me through this please?!! Thanks.

I mix hyalauronic serum into moisturiser and use in the morning (but you could do am and/or pm). I’d use retinol at night after cleansing and before moisturising. (I use vit C at night mixed with moisturiser but what you’re doing is likely ok).

Toner
Vit C
HA
Moisterizer
Spf

Evening
Retinol
Moisterizer

That's the way I would apply them.

Go easy on the retinol though, start by applying twice a week, then 3 xs and build up.

I don't know much about the BHA but would be careful as that along with vit C and retinol may be too much.

@Justbetweenus and @Girlintheframe thank you so much! I’ve stuck the retinol on at random times and my skin doesn’t seem to be too bothered by it! Thank you for telling me when to use the hyaluronic serum, it has been bugging me so much when to fit it in!! That’s all a great help, thank you both.