Merz Aesthetics has secured FDA clearance for Ultherapy PRIME on knee skin laxity, extending the platform's non-surgical lifting footprint beyond the face and neck. The indication leverages PRIME's core advantage—real-time ultrasound visualization during treatment—to guide energy delivery and ensure consistent collagen remodeling in a notoriously difficult anatomical zone.
Ultherapy PRIME Clears FDA for Knee Skin Laxity
Merz expands the first real-time ultrasound platform into a new body-contouring indication.

First and only FDA-cleared ultrasound with real-time visualization for non-surgical skin lifting.
Knee laxity remains underserved in most practices. The area is prone to skin laxity post-weight loss and aging, yet few devices deliver predictable results without invasive surgery. PRIME's ability to visualize tissue depth and energy penetration in real time addresses that gap. The clearance positions Merz to capture a secondary revenue stream in body contouring without requiring new hardware investment from practices already running the system.
Source: original report ↗
Frequently asked questions
Can Ultherapy PRIME treat loose skin on knees?
Yes. Merz Aesthetics just received FDA clearance for Ultherapy PRIME to treat knee skin laxity, making it one of the first real-time ultrasound platforms approved for this indication. The real-time visualization helps guide energy delivery to ensure consistent collagen remodeling in this difficult anatomical area.
What makes Ultherapy PRIME different for knee skin tightening?
PRIME's core advantage is real-time ultrasound visualization during treatment, which allows practitioners to see tissue depth and monitor energy penetration as it happens. This precision is especially valuable for knees, where skin laxity is notoriously difficult to treat predictably without surgery.
Do I need a new machine to offer Ultherapy PRIME knee treatments?
No. Practices already running Ultherapy PRIME can offer knee skin laxity treatments without new hardware investment. The knee indication expands the platform's existing capabilities to capture additional revenue from body-contouring procedures.
Is Ultherapy PRIME better than surgery for knee skin laxity?
PRIME offers a non-surgical alternative that delivers predictable results through real-time ultrasound guidance and collagen remodeling. While it may not match surgical outcomes in severe cases, it fills a significant gap for patients seeking non-invasive lifting without downtime.
When did Ultherapy PRIME get cleared for knees?
Merz Aesthetics recently secured FDA clearance for Ultherapy PRIME on knee skin laxity, though the exact date is not specified in the announcement. This clearance represents the first expansion of the PRIME platform into body-contouring indications beyond the face and neck.
Free: recall & rule-change alerts for your practice.
Get the recalls and state-law changes that hit your treatment room, in your inbox — free. Unsubscribe in one click.
Free · weekly · unsubscribe anytime. Privacy.
Stay three moves ahead of every practice in your market.
Knowing it happened is table stakes. Inside MedSpa Pro hands you the play — what each move means for your margins, your license, and your patients, and exactly what to do about it — in a two-minute brief, twice a week. The owners who read it never get blindsided.
Get the edge · $20/moJoin the owners who run ahead of the industry. Cancel anytime, one click.