Artificial methods Edit. For crystallization (see also recrystallization) to occur from a solution it must be supersaturated. This means that the solution has to contain more solute entities (molecules or ions) dissolved than it would contain under the equilibrium (saturated solution).
Yep, good old water will instantly tighten your skin if it is cold enough. Fill a basin with half ice and half water. Submerge your face for about 10 seconds and pat dry. You skin will take on a pink hue and your pores will be closed. You can also use this trick to dry nail polish instantly.
Mash up a medium-sized ripe banana into a smooth paste, then gently apply it to your face and neck. Let it set for 10 to 20 minutes, then rinse it off with cold water. Another popular mask recipe calls for 1/4 cup plain yogurt, 2 tablespoons honey (a natural acne remedy), and 1 medium banana. Not sure which one of these masks will work best for your skin? These are the best face masks for every skin type.