Facial rejuvenation refers to a set of procedures aimed at restoring a more youthful appearance to the face by addressing various signs of aging, such as wrinkles, sagging skin, volume loss, and uneven skin tone. These procedures can range from non-invasive treatments to surgical interventions, depending on the extent of aging and the desired outcome.

Hair growth is a natural biological process regulated by factors such as genetics, hormones, age, and overall health.

Non-healing ulcers, also known as chronic or non-resolving ulcers, are wounds that do not progress through the normal stages of healing within the expected time frame. These ulcers can occur for various reasons and are often associated with underlying health conditions or factors that impede the body's natural healing process.