What This Quiz Measures
The quiz sorts you across three things rather than assigning a single label. The first is skin type, which is governed largely by sebum production and is relatively stable: dry, normal, combination or oily. The second is your current condition, which is temporary and changeable, covering dehydration, barrier damage, and active irritation. Those two are routinely confused, and the distinction matters because oily skin can be dehydrated at the same time, in which case removing more oil makes it worse.
The third is your primary concern, meaning what you actually want to change: congestion, pigmentation, sensitivity, texture or early ageing. Your routine is built from all three, since the same skin type with different concerns needs different actives.
How Skin Type Is Determined and What Results Mean
Type is inferred from how your skin behaves a few hours after cleansing, where shine appears, how it responds to a plain moisturiser, and how readily it reacts to actives. That behavioural approach is more reliable than a single moment-in-time assessment, because ambient humidity and air conditioning shift how skin feels hour to hour in this region.
Each result gives you a starting routine and, more usefully, a list of what to avoid. A sensitive or reactive result deliberately steers away from strong actives, because comparative research on ethnic skin types has documented differences in stratum corneum structure across population groups, and in melanin-rich skin irritation can leave pigmentation that lasts far longer than the original concern. A result is a starting point for reflection rather than a diagnosis, and it is worth retaking after a seasonal change or a move between climates.
One further note on interpretation. Skin type and skin condition can point in opposite directions, and when they do the condition takes priority. An oily result paired with tightness and dullness means treating the dehydration first, because adding oil control to already stressed skin usually deepens the problem rather than solving it. Work on the condition until it settles, then return to the routine your type suggests.