I've done soap and water routine (it helped to heal my perioral exzema without antibiotics and also helped me to get rid of adult acne), pharmacy skincare, and now in the past month a longer routine that involves acid pads as chemical exfoliants and quite a few different Korean products to boost hydration.
Soap & water were enough for okay skin and keeping acne and perioral at bay. Basic maintenance, if you will. But I've always struggled with how to stay hydrated without getting breakouts. Blue pot Nivea gives me spots, and so does hair conditioner.
Next, pharmacy products. Eucerin and La Roche Posay Effaclar products helped me further against my battle with acne. Not every product was a star performer but I love Eucerin 5% urea and Aquaphor and Effaclar AI and K. These helped me to prevent breakouts and flaking dryness. I also liked various zinc creams (Fissan, Cicaplast Baume B5), they helped to heal raw skin. And Bioderma Sensibio micellar water has helped to keep my skin clean and breakout free.
Finally, the complicated extra steps - glycolic acid, salicylates, gel-like creams, sheet and sleeping masks - have given me an amazing glow and have made me super happy with my skin. I used to have problem skin but I get compliments now!
I can fully understand that someone sees skincare as redundant and frivolous. I used to too
However, probably the most important skincare step is sunscreen, so even if you are a soap and water girl, slap on some!