I hv Rosacea and hv a extremely sensitive skin, I use no toner no serum only cleanser and moisturiser and sunblock, I'm a skincare lover ( u may call I'm a skincare whore... No faithful at all !) and always love to try sth new, but so far my best routine is
Cleanser ( simple cleansing lotion)
Moisturisers ( Avene recovery cream extremely intolerant skin, physiogel AL cream)
Cruel spf 50 sunblock
I recently try the whoo the repair cream and the secret count cream, both work amazing on my dry spot and that smoothed my dryness and acne from allergy, both I only use it like ten times so I will say try first..
Sorry this may not related to any serum recommended but for sensitive skin I think I avoid any serum coz they most likely hv alcohol