Milady Esthetics State Board Practice Test 2026 - Free Esthetics Exam Practice Questions and Study Guide

Hyaluronic acid is recognized as a synthetic source of dermal fillers due to its ability to retain moisture and provide plumpness to the skin. In dermal filler applications, it is often produced in a laboratory setting, allowing for consistency and safety in cosmetic procedures. This synthetic version mimics the naturally occurring substance found in the human body that helps keep skin hydrated and volumized, making it an effective choice for reducing the appearance of wrinkles and fine lines.

In contrast, collagen is typically derived from animal sources or can also be produced synthetically, but it is not predominantly synthetic. Botulinum toxin, while it has synthetic applications, is primarily derived from a bacterium and is used for different purposes, mainly muscle relaxation. Fat cells are autologous fillers, meaning they are harvested from the patient's own body and injected into areas needing volume, so they do not fit the category of synthetic sources.