المرطبات والكريمات

Yes. Oil isn't water, and skipping moisturiser makes oily skin produce more oil, not less. Use a gel cream.

Rarely. The genuine difference is that day products may contain SPF and night products may contain retinoids. Otherwise one moisturiser twice a day is fine.

Usually too much product, or not letting it absorb before the next layer. Thinner layers, thirty seconds between them.

Above a fairly low price point, no. What matters is whether the texture suits your skin and whether you use it consistently — an EGP 400 cream you like beats an EGP 1,500 one you avoid.

Occasionally, on dry skin, in a pinch. Body formulas are usually heavier and more fragranced, so they're a common cause of congestion if you make it a habit.