How do I fit this cream into a routine if I already use retinoids, exfoliating toners, or other active serums?

This cream delivers leave-on acid exfoliation in a moisturizing base, so it counts as an active treatment step. If your routine already includes a retinoid (retinol, retinal, tretinoin), a strong AHA/BHA toner, or a high-percentage vitamin C serum, using all of them on the same day — especially morning and night — can compromise the barrier and cause redness, stinging, or flaking.

A practical way to combine them is to alternate nights: use the retinoid or strong acid serum one evening, and this cream the next evening (or morning). If you prefer daily use, apply the cream in the morning and keep the retinoid or stronger acid for night, but watch for cumulative irritation. Always apply the cream on clean, dry skin; if you use a hydrating toner or essence first, let it absorb fully. Follow with sunscreen in the morning — acids increase photosensitivity. If you notice persistent tightness, stinging that lasts more than a minute, or rough patches, drop back to using the cream every other day or pause the other actives for a week. Patch-test behind the ear or on the jawline for three consecutive days before full-face use, especially if your skin is reactive.