Cetraria islandica and is a lichen.
Iceland lichen, cetraria, fucus, muscus, and eryrngo-leaved (spiny-leaf) liverwort.
Rare possibility of allergic reaction. Risk of lead poisoning in poorly prepared Iceland moss. Excessive doses or prolonged use: gastric irritation and liver problems.
leaves No not leaves, there are no native trees in Iceland. The answer is lichen, I kind of moss that grows on rocky outcroppings in arctic countries like Iceland
No known interactions with standard pharmaceuticals.
Calcium, iodine, potassium , phosphorous, and vitamins.
Safe in recommended doses under supervision of a medical practitioner. Possible allergic reaction. Powdered Iceland moss must be prepared properly or it may contain toxic levels of lead. And more . . .
State what it is.
They do not treat all diseases. For the diseases they can treat the embryonic cells can provide replacements for the failing (or entirely missing) cells that due to their absence cause the disease.
The dried thallus is used as an herbal remedy.
Moss or peat moss can be used to treat burns, bee stings, and to polish objects. Peat moss was also used to heat homes in early settlement days of the western United States.
You could, but it would be smarter to buy moss that is treated so you don't bring in parasites and diseases.