Electroporation, iontophoresis, and needle treatments: how do they differ in delivering ingredients?

Electroporation uses short electrical pulses to temporarily loosen the skin barrier, making applied ingredients easier to penetrate.[1]Iontophoresis is a method that uses weak electrical current to push in electrically charged ingredients, while needle treatments create small pathways through the skin—each has a different mechanism for ingredient delivery.[2][3]However, within the scope of our review, we found no studies comparing the effects of cosmetic electroporation devices with each other or with other methods.

How does electroporation deliver ingredients?

The outermost layer of skin has a "barrier" that prevents foreign substances from entering.[4]Water-soluble and large-sized ingredients have difficulty penetrating this barrier, and previously the only option was to inject them.[4].

Electroporation uses electrical pulses to create temporary small gaps in this barrier.[1][4]In studies using mouse skin, pulsing resulted in greater ingredient uptake compared to no pulsing.[1]These studies examined electrical strength within a range where skin returns to normal.[1].

How is it different from iontophoresis?

Iontophoresis is a method that uses weak electrical current to push electrically charged ingredients through the skin.[2]Rather than opening the skin barrier itself, it is described as a method that adds a force to move ingredients.[3].

For this reason, iontophoresis works best with smaller ingredients that dissolve in water and carry an electrical charge.[5]Since electroporation opens the barrier, combining the two may have additive effects.[3].

How is it different from needle treatments like dermapen?

The main difference is whether a hole is created in the skin. Needle treatments use fine needles to create pathways through the barrier, so results are less dependent on ingredient size, but small wounds form on the skin.[5].

Electroporation does not use needles, so it avoids creating wounds in the skin, which is a reason it may be chosen.[1]On the other hand, research summaries note that the equipment is complex to operate, costly, and may damage the skin.[6].

How does the type of ingredient used change the outcome?

Ingredient penetration into the skin varies depending on the ingredient type. In general, smaller molecules, ingredients that are more lipophilic, and those with higher concentration are more readily absorbed through the skin.[7].

Ingredients available in the treatment menu, such as vitamin C and tranexamic acid, differ in size and properties. How much of each ingredient reaches the skin depends on the combination of ingredient and device, and cannot be compared by name alone.

Research limitations and how to choose:

Most of the research we reviewed showed results from laboratory and animal studies.[1][4]We found no studies comparing how much dark spots or pores change in people using devices at beauty clinics.

Since the way electrical current is applied differs by device, research conditions may not apply directly. Rather than focusing on effect magnitude, a practical approach is to consider whether it fits your needs, such as "I want to avoid needles or injections" or "I don't have time for downtime."

Based on this article alone, you cannot decide which method and ingredients are right for your skin. During your consultation, tell the doctor what concerns you (dark spots, dullness, dryness, etc.), your skin condition, and whether you can receive needle treatments. Then confirm the ingredients being recommended and why, and how they compare to other methods.