Owning a microcurrent device: the gel it needs, and a cost calculator
Last checked 2026-09-24.
Each of these five devices is meant to be used with a conductive gel or serum, per its maker's instructions. The packs listed here are the NuFACE Aqua Gel Activator, 2-pack (3.3 oz + 1.69 oz) and the FOREO SUPERCHARGED Serum 2.0, 1 fl oz. To own one, you buy the device and then, over time, packs of that gel or serum. Neither NuFACE nor FOREO states how many sessions a pack lasts. The calculator below works out a first-year cost from the prices and estimates you type in. This page shows no prices: check the retailer for the current price.
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Links that say “Buy from FOREO” go to FOREO's own store through the Awin affiliate network, and BeautyEvidence may earn a commission on purchases there too, at no extra cost to you. Each opens that model's page on foreo.com, where the sets on offer can differ from the Amazon listing this page describes.
| Device | Required consumable | Consumable in the box | |
|---|---|---|---|
| NuFACE Trinity+ Starter Kit | NuFACE Aqua Gel Activator, 2-pack (3.3 oz + 1.69 oz) (read 2026-10-02) | no | Amazon → |
| NuFACE MINI+ Starter Kit | NuFACE Aqua Gel Activator, 2-pack (3.3 oz + 1.69 oz) (read 2026-10-02) | no | Amazon → |
| FOREO BEAR 2 | FOREO SUPERCHARGED Serum 2.0, 1 fl oz (read 2026-09-24) | no | Amazon → Buy from FOREO → |
| FOREO BEAR 2 go | FOREO SUPERCHARGED Serum 2.0, 1 fl oz (read 2026-09-24) | no | Amazon → Buy from FOREO → |
| FOREO BEAR mini + SUPERCHARGED Serum 2.0 (1 fl oz) set | FOREO SUPERCHARGED Serum 2.0, 1 fl oz (read 2026-09-24) | yes | Amazon → Buy from FOREO → |
The consumable names and sizes are from their own Amazon US listings, each read on the date shown (B0D4SC5L2X, read 2026-10-02; B0BZS7CRQ8, read 2026-09-24). A starter kit whose listing names only “activator gel”, without a size, is counted as containing no full pack.
Kinds of claim on this page: the 510(k) rows are product evidence from the FDA database; the brands' statements are manufacturer claims, quoted; sellers and box contents are from the Amazon US listings and the consumable rules from each maker's manual or product page, all read 2026-10-02, except the consumable packs, which carry their own read dates. Anything no source states is marked as not stated. No prices are shown: check the retailer for the current price.
Calculator
first-year cost = device price + (sessions per week × 52 ÷ sessions per pack − packs in the box) × pack price. You type every number. The device you choose sets only the packs in the box.
Without JavaScript the calculator does not work; the table above lists what each device needs. The calculator assumes no subscription and no sale.
What each maker's instructions say about the gel or serum
- NuFACE Trinity+ Starter Kit: NuFACE's product page: “Apply a mask-like layer of Microcurrent Activator to your treatment area”
- NuFACE MINI+ Starter Kit: NuFACE's product page: “Apply a mask-like layer of Microcurrent Activator to your treatment area”
- FOREO BEAR 2: FOREO's BEAR 2 manual: “Microcurrent devices like BEAR™ 2 must be used with a conductive serum”
- FOREO BEAR 2 go: FOREO's BEAR 2 go manual: “Microcurrent devices like BEAR™ 2 go must be used with a conductive serum”
- FOREO BEAR mini + SUPERCHARGED Serum 2.0 (1 fl oz) set: FOREO's BEAR mini manual: the microcurrent is used “solely ... with the required protective serum”
Head to head: FOREO BEAR 2 vs NuFACE Trinity+. Which models a 510(k) names: the clearance page.
A cost calculator only: it says nothing about which device works better, and it is not medical advice.