Nu Skin makes two different conductive gels, and they are not interchangeable. Which one you need depends entirely on which device you own — and the two devices work on different principles.
The short answer: if you have the RenuSpa iO, you need Nu Skin Conductive Gel — $74. If you have an older Galvanic Spa, you need the Enhancer Skin Conditioning Gel. Using the wrong one means the device will not work as intended.
Which gel goes with which device
| If you own | The technology is | You need |
|---|---|---|
| Nu Skin RenuSpa iO | Adaptive Microcurrent Technology | Nu Skin Conductive Gel — $74 |
| Galvanic Spa (older device) | Galvanic | Enhancer Skin Conditioning Gel |
| ageLOC LumiSpa iO | Micropulse Oscillation — no current | No gel. It uses a treatment cleanser instead. |
We stock the RenuSpa iO but not the Galvanic Spa, which Nu Skin no longer features in its current line. We do still carry the Enhancer gel for customers who own one.
Why a conductive gel is needed at all
A conductive gel is a water-based medium that lets electrical current pass evenly between a device and the skin. Without one, current cannot spread across the skin surface — which means inconsistent treatment, reduced effect, and possible discomfort from uneven distribution.
It also does a second job: it keeps the device gliding. A device dragged across dry skin does not move the way it was designed to, whatever the current is doing.
Microcurrent and galvanic are not the same thing
This is the distinction that causes most of the confusion, so it is worth stating plainly.
Microcurrent — used by the RenuSpa iO — delivers a very low, alternating current used for contouring and firming. Nu Skin calls its version Adaptive Microcurrent Technology, and says it “comfortably adjusts to your skin in real time.” It works on the face and the body.
Galvanic — used by the older Galvanic Spa — delivers a continuous direct current to drive charged molecules into the skin, a process called iontophoresis. Iontophoresis has strong clinical grounding; it is used medically to deliver drugs through the skin without needles.
Because the currents differ, so do the gels. A gel formulated for galvanic delivery is not the right medium for a microcurrent device, and vice versa.
Using the Nu Skin Conductive Gel with the RenuSpa iO
- Start clean. Cleanse first — ideally with the LumiSpa iO, which is what it is for.
- Apply the gel generously to the area you are treating. Thin coverage is the most common mistake.
- Work in sections, following the device's own guidance. Nu Skin's directions are up to 5 minutes per body area, 3 to 5 times weekly — and specifically not daily.
- Top up the gel if the device starts to drag. It should glide throughout.
- Rinse and moisturise afterwards.
Using the Enhancer Gel with a Galvanic Spa
- Start with clean skin.
- Apply a generous amount of Enhancer Skin Conditioning Gel to the treatment area.
- Run the device on the negative setting to prepare the skin.
- Apply your treatment product over the gel.
- Switch to the positive setting to drive the actives in.
- Rinse and moisturise.
General guidance
- Always apply to clean skin — oils and heavy moisturisers impede current flow.
- Use enough gel that the device never drags.
- Do not use over broken skin, active lesions or irritated areas.
- Do not use any current-based device if you have a pacemaker or metal implants.
- Use the gel made for your device. Generic conductive gels may conduct, but they lack the formulation and the skincare actives, and may affect device performance or warranty.
Frequently asked questions
Which gel do I need for the RenuSpa iO?
Nu Skin Conductive Gel, $74. The RenuSpa iO is a microcurrent device, not a galvanic one, and the Enhancer Skin Conditioning Gel is formulated for galvanic devices.
Does the LumiSpa iO need a conductive gel?
No. The LumiSpa iO works by Micropulse Oscillation — it passes no electrical current through the skin at all. It uses a treatment cleanser instead, and the treatment function is designed around Nu Skin's own cleansers.
Can I use a regular moisturiser instead?
No. Conductive gels are water-based so current can pass through them. Moisturisers, particularly oil-containing ones, impede current flow and reduce the treatment to nothing.
How much should I use?
Enough that the device glides without dragging. A thin, even layer per treatment zone is usually sufficient. If it drags, use more.
Is it safe for sensitive skin?
Both gels are formulated for facial skin and are generally well tolerated. If you have very sensitive skin or known allergies, read the ingredient list and patch test first. Discontinue use if irritation occurs.
What if I buy the wrong one?
Return it within 90 days for a full refund, opened and used included. That is NuBodyRx's own guarantee — Nu Skin's own policy states: “We provide 100% refund on items returned within 30 days of the purchase date.” Or call (973) 879-3352 before you order and we will tell you which one your device needs.