Freckles and sun spots can both look brown, but they develop differently. Learn how ephelides and solar lentigines differ and why the distinction matters for prevention and treatment.
Faces move constantly. Learn why filler should be assessed during expression as well as at rest and how anatomy, product placement, and tissue movement influence a natural result.
Wrinkles caused by movement behave differently from lines that remain at rest. Learn how Botox, skin treatments and collagen support fit different line patterns.