Botox is an injectable that temporarily relaxes muscles, softening the wrinkles those muscles create. It's the most common cosmetic procedure in the world, and it also treats medical conditions like excessive sweating and migraines.
Dermal fillers are gel-like substances injected under the skin to smooth lines, restore lost volume, and shape features. Most use hyaluronic acid, a sugar the body makes naturally.
PRP uses your own blood. A sample is spun to concentrate the platelets — which carry growth factors — and injected back into the scalp or skin. It's mainly used for hair loss.
Dupilumab is an injectable biologic drug for moderate to severe eczema that is not controlled by creams. It targets two specific signals in the immune system that drive the disease.
Methotrexate is a pill (or shot) that calms an overactive immune system. Doctors use it for moderate to severe psoriasis and for psoriatic arthritis.
Omalizumab (Xolair) is an injected medicine for long-lasting hives that do not get better with antihistamines. It is a biologic that targets a part of the immune system.