http://diggsbookmark.club/story.php?title=potenza-vs-ultherapy-a-contrast-of-non-surgical-skin-restoration-remedies A conventional procedure for face tightening typically uses several passes at various depths-- e.g., much deeper SMAS targeting around 4.5 mm, mid-dermal at 3.0 mm and surface dermis at 1.5 mm. Tue, 30 Jun 2026 14:49:00 UTC en