Heat just to boiling and store in tightly closed bottles or jars. Steaming is one of the best ways to cleanse the skin. The addition of herbs to the hot steam supposedly helps cleanse, stimulate, soothe, and tighten the skin, remove impurities and aid in blemish control. Pour boiling water over fresh or dried herbs in a basin and make a tent of a towel to hold over your head. Let the steam soak you face for 10 minutes or as long as you can stand the heat.
Chamomile flowers are the most popular for steam facials.
Other possibilities are elder flowers, lime, strawberry leaves, yarrow, lady s mantle, fennel, comfrey, roses, peppermint, horsetail, nettle or rosemary. Use alone or in combinations. Strong peppermint tea or by steeping equal portions of mint, anise, and rosemary in boiling water. Strain and store in a tightly capped bottle. For a spicy version, grind your own blend of cloves, caraway, cinnamon, and nutmeg in a mortar and pestle.