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.
9. Glycerin also helps to close open pores and helps in reducing large pores. Add pure glycerin to vitamin E oil and apply on your face to get rid of large pores. 10. Yogurt is very effective for tightening the skin pores and in getting rid of blemishes on face.