This routine is active-ingredient-heavy, built for adult acne and clogged pores. BHA in the mornings, a triple-acid toner 3-4 times a week, niacinamide everywhere in between.
The minimum routine. Skip nothing here.
Foam · AHA-BHA-PHA · daily
Betaine salicylate 4% · willow bark · daily AM
Birch sap · light · non-comedogenic
SPF 50 · non-comedogenic · oil-free
Optional add-ons. Each has a "when to add" trigger, none are daily-use unless the trigger fits.
Triple-acid exfoliating toner · 3-4× weekly
When to add: add 3-4× weekly for deeper exfoliation; never daily
Niacinamide · oil regulation
When to add: add daily AM for compounding oil control + post-acne marks
Hydrocolloid patches · 24 ct · spot only
When to add: add for active spots, especially overnight