No. Your cleanser can be from a different brand than your moisturizer or sunscreen. What counts is the individual product, its ingredients and how it’s meant to be used. A complete product line can make choosing easier, but it isn’t required for a routine that works. If you already like your cleanser, you don’t have to replace it just because you add a new cream.

When you combine products, pay special attention to whether they do the same job. An exfoliating toner plus an exfoliating serum can be too much – and the same can happen with several intensive products from one brand. So introduce new products one at a time and patch test them first, following the directions. That makes it easier to see what your skin tolerates. If you’re unsure about your combination, send Thu the exact product names and your previous order. You don’t need to replace a whole skincare range.