Pricing Course-Based EMS Treatments: Room Cost and Payback Over 10 Sessions
Facial EMS differs structurally from most facial treatments in one respect: it is normally sold as a course rather than as a single session. The protocol in the PRS Global Open study was 10 sessions at 1–2 week intervals.
That difference looks like packaging, but it changes three things at once: how rooms are scheduled, when cash actually becomes yours, and how long you carry a legal obligation. This article deals only with those three. For how to design the menu itself and how many treatment lines to run, see Eve Titan treatment menu design.
1. The fundamental difference between a course and a single session
The economics of a single session are simple: the client comes once, pays once, you deliver once, and the transaction closes immediately.
A course creates three things simultaneously:
- Future revenue — money received for a service not yet delivered
- A room liability — you must reserve specific slots for that client over the next 10 to 20 weeks
- A refund obligation — until delivery is complete, that money is not entirely yours in either legal or accounting terms
Most salons account only for the first, which produces the classic situation of looking profitable on paper while running short of cash. Pricing this correctly means all three enter the calculation.
2. What 10 sessions actually cost in room time
Start by converting the research protocol into room time. Using the study setting as the baseline (approximately 20 minutes per side, both sides), plus consultation, cleansing, electrode placement, record-keeping and settling:
| Component | Time | Note |
|---|---|---|
| Stimulation time (both sides) | About 40 minutes | The study used approximately 20 minutes per side |
| Consultation and contraindication check | 5–10 minutes | Longer at the first visit, shorter thereafter |
| Cleansing, conductive gel, electrode placement | 10 minutes | Facial placement must be accurate; not a step to compress |
| Recording parameters and client response | 5 minutes | Without it there is nothing to follow up next time |
| Room turnover | 10 minutes | — |
| Total room occupancy per session | About 70–75 minutes | Actual figures should follow the treatment design in manufacturer training |
At 75 minutes per session, a course of 10 occupies roughly 12.5 hours of room time. That is the number you must establish before setting any price, because it determines how many courses one room can begin in a month.
Take one room, 9 operating hours a day at 70% utilisation — about 6.3 sellable hours daily, roughly 164 hours over 26 days. Divided by 12.5 hours, one room can begin about 13 new courses per month — and those 13 courses will occupy slots for the following 10 to 20 weeks. This is where course-based treatments are most often underestimated.
3. How prepaid-consumption regulation affects course-based treatments
This section differs from other pricing articles because the issue is specific to Hong Kong and immediately current.
In June 2026 the Government published proposals to regulate prepaid consumption, with public consultation closing on 31 August 2026. The main directions in the consultation document include:
| Proposed direction | Content | Effect on a 10-session course |
|---|---|---|
| Cooling-off period | 7 calendar days | Clients may cancel within 7 days of signing; revenue cannot be recognised immediately |
| Mandatory refund period | 14 calendar days | Cash must be reserved for refunds and cannot all be deployed |
| Cap on prepaid contract term | 2 years | A 10-session course at 1–2 week intervals completes in roughly 10–20 weeks — far below the cap, structurally safe |
| Monetary thresholds | Tiered at HK$3,000 / 8,000 / 15,000 | Which tier the course price falls into determines which requirements apply |
Please note: these are directions proposed at consultation stage, not current law. The final legislation may differ from the consultation document, actual compliance requirements should follow the ordinance as enacted, and legal advice should be sought where needed.
For a purchasing decision, though, the direction is already clear enough. If a two-year prepaid cap is legislated, the traditional "buy 20 facials and use them over two years" package model gets compressed, while a course completed within 10 to 20 weeks is structurally unaffected. That is a genuine advantage of course-based device treatments under a tightening regime, and it belongs explicitly in the procurement assessment.
4. A three-tier price structure
A course-based treatment should not carry a single price. We suggest three tiers, each solving a different problem:
| Tier | Content | Pricing logic | Purpose |
|---|---|---|---|
| Single trial | One session, possibly half-face or a single area | Room cost per session as the floor, plus a reasonable margin | Lets the client experience the sensation without buying on price |
| Standard course | The full 10 sessions | Single-session price × 10, with a reasonable allowance | The core product, matching the full research protocol structure |
| Maintenance plan | Periodic single sessions after the course | Between the single price and the per-session course price | Converts one-off revenue into recurring revenue |
The three tiers need clear separation. If the trial is much the same as the standard course, the client has no reason to upgrade; without a maintenance plan, clients who finish 10 sessions simply drift away.
Do not price by "list price minus discount". Work out room cost and labour cost per session first, decide the margin, and derive the price from there. Discount should be an output of pricing, not the starting point.
5. Putting the course into the payback calculation
The generic formula is: total investment ÷ contribution per session = sessions required. A course-based treatment needs three adjustments on top.
First, count delivered, not sold. When you sell a 10-session course you have completed one tenth of the delivery. Measuring payback by cash received badly overstates progress.
Second, include the room's opportunity cost. What could those 12.5 hours have earned if they were not EMS? The difference is this device's real contribution.
Third, allow for drop-off. Some clients will stop at session five or six; that is inevitable. Price on a conservative completion rate — say 80% — rather than assuming every course finishes.
Total investment should include the machine, consumables, the maintenance contract, training and the first two months of promotion. The full six-cost breakdown and formulas are in our beauty equipment payback guide.
6. The four most common pricing mistakes
One: taking the single-session price × 10 as the course price. That gives away the cash-flow and retention value a course creates, while still carrying all of the room liability and refund obligation.
Two: leaving consultation and record-keeping out of room occupancy. Counting only the 40 minutes of stimulation when the room is actually held for 75 will overstate capacity by nearly double.
Three: treating money received as revenue earned. Under the proposed cooling-off and refund provisions, this carries more risk than it used to.
Four: promising results after a fixed number of sessions. The study did not compare session counts and made no objective measurement. Selling on "after 10 sessions you will see X" has no basis and carries risk under the Trade Descriptions Ordinance. The full list of what may and may not be said is in our breakdown of the facial EMS clinical study.
Frequently Asked Questions
Should facial EMS be sold as single sessions or as a course?
Both, in different roles. Single sessions let new clients experience the treatment; courses build predictable revenue and return visits. Selling only single sessions usually leaves device utilisation low; selling only courses sets the entry barrier too high for new clients. We suggest a single trial as the entry point, the 10-session course as the core product, and a maintenance plan to catch clients who complete it.
How many 10-session courses can one room run per month?
Work out actual room occupancy per session first — beyond stimulation time you need consultation, electrode placement, record-keeping and turnover, usually about 70–75 minutes in total — then multiply by 10 for total room time per course, and divide by your monthly sellable room hours. For one room at 9 hours a day and 70% utilisation, that works out to roughly 13 new courses started per month, and those courses will occupy slots for the following 10 to 20 weeks.
Will the new prepaid-consumption rules affect treatment packages?
The consultation document published in June 2026 proposed a 7-day cooling-off period, a 14-day mandatory refund period, a 2-year cap on prepaid contract terms and tiered monetary thresholds, with public consultation closing on 31 August 2026. These are proposals rather than current law, and final requirements should follow the ordinance as enacted. Worth noting is that a 10-session course completing within 10 to 20 weeks sits far below the proposed two-year cap.
How should payback be calculated accurately?
Count sessions actually completed and delivered, not the amount sold. Include the machine, consumables, maintenance, training and promotion in total investment, divide by real contribution per session (price less consumables and labour), and adjust with a conservative course completion rate such as 80%. Include the room's opportunity cost too, otherwise you will overstate the device's marginal contribution.
Conclusion: the course structure is itself an asset
Facial EMS being sold in courses of 10 is often treated as a sales obstacle — persuading a client to commit to ten sessions at once is harder than selling one facial.
Seen from another angle, though: as prepaid-consumption regulation tightens, a course that completes within 10 to 20 weeks, at a controlled price, with a short delivery cycle, is considerably safer than a two-year package. It collects less cash up front, but it carries a much shorter obligation, and because clients finish in a shorter window, continuation into a maintenance plan tends to be higher.
The job of pricing is to put that structural advantage explicitly into the numbers, rather than treating it as a drawback to be overcome with discounts.
For Titan consumable costs, maintenance terms or a payback model, contact us to request the documents.
This article is general operational and procurement reference for beauty salons and does not constitute legal, accounting or investment advice. The prepaid-consumption regulation described is at consultation stage and is not current law; actual compliance requirements should follow the ordinance as enacted, and professional advice should be sought where needed. All formulas are illustrative frameworks; actual figures must be calculated for each individual business.