what is the best moisturizer to use if..  

try using Clinique. It's for sensitive skin. I don't know what caused your pores being bigger but Clinique is worth a try :)

i think you have to know first what is your skin type, is it oily, sensitive,. dry? or normal?

from there ask ladies in the counters, yup i know there are there to sell the product but yes, they are there to sell the product so they are the ones who knows the product better right? so ask the ladies in the beauty counter what they can recomend for your skin and within your budget

i suggest that you should stop from buying those cosmetic products because it can be very harmful. i use physiogel. i have a very sensitive and dry skin before. my cousin's baby use it also for his skin allergies and it's worth the money. it's not really commercialized but a lot of dermatologists here are recommending it.

I understand you I always had to watch makeup I use I found I couldn't use to much makeup it would break me out so I just use powder and a little blusse.

cd

I am a lot older than you but I have pretty good skin I guess, despite my advanced years (LOL)! I use Olay lotion with SPF for sensitive skin and I also use an oil called Bi-oil, I don’t know if you can get it where you are; it’s excellent for stretch marks and scars too. I wash my face with Dove soap and I moisturise with Olay first and then I use the Bi-oil. That along with drinking lots of water has done wonders for me!