• Hyaluronic acid, which has a potent anti-wrinkle effect.
• Steroids, which help the skin look young.
• Lipids and phosphatidic acids, that significantly enhance the insulating and protecting layer of the skin
• Elastin and collagenase, which reduce tissue tension
In addition to the above, leeches produce serotonin and endorphin (which calm the recipient), eglin (an anti-inflammatory agent), and a histamine-like substance (that increases blood circulation).