I applied a sunscreen that i didnt know was water resistant , after 80 mins of application, i did wudu , some of it had absorbed but my skin still felt like a vaseline kinda texture but i washed my face well during wudu, Now i am having waswas whether my wudu is valid , cuz it wasnt too waterproof

Ustadh AbdulAziz al-Haqqan

Only you can decide akhi if the water reached your skin or not.