UltradermMD by Trophy Skin Microderm – abrasion Device

Abrasion may refer to:

• Abrasion (dental), the loss of tooth structure by mechanical forces from a foreign element
• Abrasion (medical), a wound consisting of superficial damage to the skin
• Abrasion (mechanical), the process of scuffing, scratching, wearing down, marring, or rubbing away
• Abrasion (geology), mechanical scraping of a surface by friction between moving particles

A device is usually a constructed tool. Device may also refer to:

Skin is the layer of usually soft, flexible outer tissue covering the body of a vertebrate animal, with three main functions: protection, regulation, and sensation.

Other animal coverings, such as the arthropod exoskeleton, have different developmental origin, structure and chemical composition. The adjective cutaneous means "of the skin" (from Latin cutis 'skin'). In mammals, the skin is an organ of the integumentary system made up of multiple layers of ectodermal tissue and guards the underlying muscles, bones, ligaments, and internal organs. Skin of a different nature exists in amphibians, reptiles, and birds. Skin (including cutaneous and subcutaneous tissues) plays crucial roles in formation, structure, and function of extraskeletal apparatus such as horns of bovids (e.g., cattle) and rhinos, cervids' antlers, giraffids' ossicones, armadillos' osteoderm, and os penis/os clitoris.

All mammals have some hair on their skin, even marine mammals like whales, dolphins, and porpoises that appear to be hairless. The skin interfaces with the environment and is the first line of defense from external factors. For example, the skin plays a key role in protecting the body against pathogens and excessive water loss. Its other functions are insulation, temperature regulation, sensation, and the production of vitamin D folates. Severely damaged skin may heal by forming scar tissue. This is sometimes discoloured and depigmented. The thickness of skin also varies from location to location on an organism. In humans, for example, the skin located under the eyes and around the eyelids is the thinnest skin on the body at 0.5 mm thick and is one of the first areas to show signs of aging such as "crows feet" and wrinkles. The skin on the palms and the soles of the feet is the thickest skin on the body at 4 mm thick. The speed and quality of wound healing in skin is promoted by estrogen.

Fur is dense hair. Primarily, fur augments the insulation the skin provides but can also serve as a secondary sexual characteristic or as camouflage. On some animals, the skin is very hard and thick and can be processed to create leather. Reptiles and most fish have hard protective scales on their skin for protection, and birds have hard feathers, all made of tough beta-keratins. Amphibian skin is not a strong barrier, especially regarding the passage of chemicals via skin, and is often subject to osmosis and diffusive forces. For example, a frog sitting in an anesthetic solution would be sedated quickly as the chemical diffuses through its skin. Amphibian skin plays key roles in everyday survival and their ability to exploit a wide range of habitats and ecological conditions.

On 11 January 2024, biologists reported the discovery of the oldest known skin, fossilized about 289 million years ago, and possibly the skin from an ancient reptile.

A trophy is a tangible, durable reminder of a specific achievement, serving as recognition or evidence of merit. Trophies are most commonly awarded for sporting events, ranging from youth sports to professional level athletics. Additionally, trophies are presented for achievements in Academic, Arts and Entertainment, Business, Military, Professional awards, Community Service, Hunting, and Environmental accomplishments. In many contexts, especially in sports, medals (or, in North America, rings) are often given out either as the trophy or along with more traditional trophies.

Originally the word trophy, derived from the Greek tropaion, referred to arms, standards, other property, or human captives and body parts (e.g., headhunting) captured in battle. These war trophies commemorated the military victories of a state, army or individual combatant. In modern warfare trophy taking is discouraged, but this sense of the word is reflected in hunting trophies and human trophy collecting by serial killers.