Dolphin Neurostim and conventional TENS both deliver electrical stimulation through intact skin. They are related approaches, but they are not used in exactly the same way.

What is the practical difference?

Conventional TENS usually uses adhesive pads over a broader area and is commonly adjusted to create a strong but comfortable sensory experience. Dolphin Neurostim uses a handheld probe to apply low-frequency direct current at selected points.

The U.S. Food and Drug Administration classifies the over-the-counter Dolphin model as a transcutaneous electrical nerve stimulator. Its cleared indication is temporary relief of pain associated with sore and aching muscles resulting from exercise or normal work and household activities.

That clearance does not establish that Dolphin treats every condition or that it is superior to conventional TENS.

What does the evidence show?

A large systematic review of 381 TENS studies found lower pain during or immediately after treatment compared with placebo, without evidence of serious adverse events. Results varied across conditions and treatment methods.

A separate systematic review of microcurrent therapy found promising findings for selected musculoskeletal pain presentations. That review included only four randomized trials and five non-randomized studies, and it identified a meaningful placebo response.

TENS research cannot prove that a specific Dolphin application works. Microcurrent research also cannot establish that Dolphin is universally better than TENS.

How should the choice be made?

I would choose a trial based on:

  • the symptom or activity being targeted
  • screening and health precautions
  • comfort and treatment preference
  • previous response
  • whether the same outcome can be reassessed

The useful question is not which device wins. It is whether a suitable trial produces a meaningful, sufficiently durable improvement in pain, movement, sleep, work or exercise.

At Lee Strength, standalone Dolphin Neurostim remains a separate non-RMT service and does not receive an RMT insurance receipt. During an eligible RMT appointment, it may be discussed as an optional adjunct when it fits the agreed Massage Therapy plan.