Life Crystal

A Life Crystal is an item dropped after breaking a Crystal Heart.

It is used to increase the amount of Maximum Life you have. You must use either a hammer or explosives to destroy the Crystal Heart and harvest the Life Crystal. When this item is consumed, it increases your max HP by 20HP (one heart) up to a maximum of 400HP (which requires 15 hearts). Skeletron can also drop a Life Crystal.It is also possible to find several life crystals in one area.

When the maximum amount of health is reached the Life Crystals are useless.