It is one of the most common things we hear: my skin is oily and dry at the same time, in a country that is ninety per cent humidity. Both things are true, and the aircon is why.
Dry skin and dehydrated skin are different
Dry skin lacks oil — it is a skin type, and it tends to be lifelong. Dehydrated skin lacks water, it is a condition, and anyone can have it, including very oily skin. Air-conditioning pulls water out of the top layers all day. Oil production does not stop to compensate; often it increases.
Oily and tight at the same time is the signature of a dehydrated barrier, not a dry one.
How to tell
Dehydrated skin looks dull and feels tight, fine lines appear across the cheeks by late afternoon, and makeup separates. Press a finger into the cheek: if fine crinkles fan out, that is water, not oil.
What actually helps
Layer water-based hydration rather than piling on heavier creams — an essence pressed in twice, then a moisturiser to seal it. Cut back on foaming cleansers and acids while you rebuild. And if you sit under a vent, a small desk humidifier does more than most serums.
