Hello. Spirulina algaeit is usually found pulverized in capsules or in jars. It is usually used as a supplement / tonic. The procedure for the preparation of a mother tincture is: to soak the herbs (leaves, roots, etc.) in food alcohol x liqueurs 95 °. Use a glass container. Fill until the material is completely submerged in alcohol. add 3 tablespoons of water. wait a month / a month and a half. shake the jars every now and then. filter and add a little more water until reaching an alcohol content of between 50-70 °. For hydroalcoholic extracts the procedure is similar but food glycerin is also used. the doses are 25% alcohol, 25% food glycerin (E422), 50% water. Infuse the herbs for at least 1 month, filter, bottle. Have fun.