The Skin Edit
Deep Dive

Energy Devices: What Actually Builds Collagen?

7 min readMarch 5, 2026Chayata Wongpojanee, DNP, FNP-BC

LaseMD Ultra vs Potenza RF: how controlled injury cascades into regeneration, and why a multimodal approach delivers the most dramatic results.

Understanding Controlled Injury

All energy-based devices operate on the same fundamental principle: controlled injury triggers a regenerative cascade. The key differences lie in the depth of penetration, the type of energy delivered, and the biological response pathway each device activates. Understanding these distinctions is critical to choosing the right device for your specific skin concerns.

The most dramatic transformations come not from a single device, but from a thoughtful combination protocol that addresses the skin at multiple depths simultaneously.

LaseMD Ultra: Light-Based Precision

The LaseMD Ultra delivers fractionated thulium laser energy to the superficial and mid-dermis. Its strength lies in treating pigmentation, photodamage, and fine textural irregularities. The fractional delivery pattern leaves intact columns of tissue between treatment zones, accelerating recovery while still triggering a meaningful wound-healing response. Most patients experience only mild redness for 24 to 48 hours.

Potenza RF: Deep Dermal Remodeling

Potenza RF microneedling combines radiofrequency energy with mechanical micro-injuries at customizable depths. This reaches the mid-to-deep dermis where the structural collagen and elastin networks reside. The RF energy creates volumetric heating zones that denature existing collagen fibers, triggering neocollagenesis, the formation of entirely new collagen. Results continue developing for three to six months post-treatment as the remodeling cascade completes.

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