Currently, two major perforating diseases include reactive perforating collagenosis and elastosis perforans serpiginosa. In some literature, acquired perforating dermatosis is a third major group and is a catch-all term for cases of perforating disease arising in adults, usually associated with a systemic disease. Kyrle disease is characterised by the formation of large papules with central keratin plugs and is often associated with hepatic, renal or diabetic disorders.
Other glow products contain a small glass vial inside the plastic tube that contains a mixture of hydrogen peroxide in phthalic ester (a substance that is added to plastics to increase flexibility, durability and transparency). Outside of the glass vial is another chemical called phenyl oxalate ester.
How to Make Your Own Homemade Glow Sticks. The first glow sticks were patented by the US Navy in the 70s, but back then, they were called Chemiluminescent Signal Devices.. Today, glow sticks are still used by the military, emergency services, campers, divers and, of course, ravers. Image via staticflickr.com.