Use the gel your device's maker specifies: a water-based conductive gel, applied in a generous layer. Never aloe, oils, Vaseline or a thin serum, which can weaken or block the current. And know this: most conductive gels only help the device glide. The best gels also treat your skin, which is why SKINFOUNDRY Halo comes with Lumis, a treatment gel with niacinamide 3% and tranexamic acid 2%.
Updated October 23, 2026. Written by SKINFOUNDRY, maker of SKINFOUNDRY Halo and Lumis Activating Treatment Gel. Directions summarized from each maker's own instructions.
Why microcurrent and RF devices need gel
Gel does two jobs. It carries the current or RF energy evenly from the device into the skin, and it lets the head glide without tugging. Too little gel, or the wrong product, means patchy contact, less comfort and a weaker treatment. That is why every maker tells you what to use.
What gel each popular device uses
| Device | What the maker says to use | Does the gel treat skin? |
|---|---|---|
| SKINFOUNDRY Halo | Lumis for Import, Eye Care, Anti-aging and Lifting; cleanser on damp skin for Clean | Yes: niacinamide 3%, tranexamic acid 2%, two vitamin C forms, a peptide, hyaluronic acid |
| NuFACE TRINITY+ and MINI+ | NuFACE activator gel, every session (NuFACE) | Check NuFACE's ingredient list for your activator |
| Medicube Age-R Booster Pro | Your regular skincare for Booster, MC and Derma Shot; clean, dry skin for Air Shot (Medicube) | Depends on the product you use |
What never to use
- Aloe gel: often too thin and dries fast, so contact breaks mid-pass.
- Oils and Vaseline: they insulate rather than conduct.
- A light serum on its own: usually too little product to keep even contact.
- Ultrasound gel from a clinic supply: it conducts, but does nothing for your skin, and was not made for your device.
Why Lumis is different
Most conductive gels are a consumable: they make the treatment possible and that is all. Lumis Activating Treatment Gel was made for SKINFOUNDRY Halo to do both jobs. It conducts the RF and EMS, and it carries a real formula: niacinamide 3% for tone and the look of pores, tranexamic acid 2% and alpha-arbutin for a more even-looking tone, two stable forms of vitamin C, acetyl hexapeptide-8 for the look of expression lines, and hyaluronic acid, glycerin and panthenol for hydration. Fragrance-free.
So every SKINFOUNDRY Halo session is two steps in one: the device treatment and a serum-grade skincare layer.
See Lumis ingredients or see SKINFOUNDRY Halo, which ships with Lumis.
Frequently asked questions
What gel should I use for microcurrent? The one your device's maker specifies, applied generously. It should be water-based and conductive. Avoid aloe, oils and thin serums.
What can I use instead of NuFACE gel? Start with NuFACE's own instructions, because the device is tested with the activator NuFACE specifies. If you substitute, choose a water-based conductive gel and apply a thick layer; a thin or oily product can weaken the current.
Can one gel work with every microcurrent and RF device? Do not assume so. Each maker tests its device with a specific gel, so follow the instructions for your exact device and mode.
Can I use Lumis with another brand's device? Lumis is made for SKINFOUNDRY Halo, and that is the only device we support it with. For other devices, follow that manufacturer's directions.
Does SKINFOUNDRY Halo need Lumis in every mode? Import, Eye Care, Anti-aging and Lifting use Lumis. Clean mode uses your cleanser on damp skin.
How much gel should I use? Enough that the head glides without dragging, reapplied when it thins. Running low on gel is the most common reason a session feels uncomfortable.
Is an opened tube of Lumis returnable? Unopened Lumis may be returned within 30 days of delivery; opened gel only if it arrived damaged or defective. SKINFOUNDRY Halo itself has a 90-Day Promise. Read the full return terms.
SKINFOUNDRY Halo is a cosmetic device for home use. Results vary. Follow the instructions and cautions supplied with your device.