Product Muka

I'm goin to be 36 soon, dah after 35 kan kulit muka pun mcm dah tak moist je. It bit dry rasanya. Currently i'm using this 2 product berselang seli. Tapi after dah pakai bertahun2, i think my skin dah mcm immune with this product. Betul ke kata org kita ni actually every 3 years kena tukar product, tak leh stick to one utk jangka masa yg lama, sbb lama2 skin kita bila dah biasa dgn satu product je dah tak de effect dah. Is it true?

Aku rasa mcm betul je, sbb yup i notice my skin masa mula2 dulu yes makin glowing, tapi skrg rasa mcm makin pudar je. Ke sbb my age so kena pakai lebih sikit product?

Anyone would like to introduce any good product to me? Aku tgh confuse tak tau nak tambah product apa utk di pakai together with the current one.