Setting Up a Supply Par Level for a Med Spa in Canada: Treatment Room Disposables

Setting Up a Supply Par Level for a Med Spa in Canada: Treatment Room Disposables

Why a med spa's consumable list behaves differently from a clinic's

A two-room med spa in Ontario can see forty clients a week across a short list of products, and still stop mid-afternoon because the hydrating repair mask that follows a laser pass has run out. The list is short, the usage per client is high, and almost nothing on it can be reprocessed, cleaned and put back on the trolley. That combination makes stock planning less forgiving than it is in a family practice, where a single box of gauze might sit on a shelf for a month.

The other difference is that the person ordering is usually not the person using. A clinic manager orders against a form; a spa owner orders against memory, at the end of a long day, after a practitioner mentions something is low. A written par level replaces that memory with a number anyone can check.

The four numbers a par level is built from

Every par level rests on four figures, and only one of them is a guess.

• Clients per week in the room being stocked, taken from the booking system rather than from an average month.
• Units consumed per client, which for most single-use items is exactly one.
• Supplier lead time in weeks, measured from the day the order is placed to the day the carton is opened.
• A safety margin, typically 20 to 30 percent, to absorb a busy week, a repack or a delivery that arrives short.

The formula is ordinary arithmetic: par equals weekly use multiplied by the order cycle in weeks, plus the safety margin, rounded up to the nearest selling unit. The order cycle is a business decision, not a standard. A spa ordering monthly with a two-week lead time is carrying four to six weeks of stock, which is comfortable for masks and tight for table paper.

Working the formula on one two-room treatment room

Take a spa seeing forty clients a week, ordering every four weeks, holding a 25 percent margin. Each client gets one repair mask, two gauze squares, about 1.2 metres of table paper and six disinfecting wipes. The table below runs the arithmetic.

Read the last column rather than the middle ones. Nobody checks 1,200 wipes; anybody can see that two canisters remain and that the par is eight. The paper row is the one that surprises owners, because a case of twelve rolls looks like a year of stock until a three-room week eats a roll in five days. The mask row rounds up as well, because 200 masks of cover meets a 300-mask minimum order — five cases of 60.

Which items deserve a par level and which do not

Sort the treatment room into three groups. Group A items stop a treatment when they are missing: repair masks, wipes, gauze, table paper, gloves, head covers. These get a par level and a weekly visual check. Group B items are used steadily but have a substitute, such as a second gauze size or an alternate serum format; they get a par level reviewed quarterly. Group C items are bought once or twice a year, and a calendar reminder serves them better than a par sheet.

The mistake is putting everything in group A. A par sheet with thirty lines does not get checked, and an unchecked par sheet is worse than no par sheet because it looks like a system.

What single-use rules do to the arithmetic

Ontario Regulation 136/18 governs personal service settings under the Health Protection and Promotion Act, and it treats single-use items as single use: an item designated for one client is not cleaned and returned to the trolley. Toronto Public Health inspects personal service settings under its BodySafe programme and publishes results, so the practical question is not whether a mask can be reused but whether the room can show it was not.

This is why the per-client column in the table is almost always a whole number. There is no reprocessing yield to model and no loss rate to estimate. Provincial infection prevention guidance from Public Health Ontario sets out the cleaning and disinfection expectations around those single-use items, including the hand hygiene and environmental cleaning steps between clients.

If the spa also runs a sterilizer for reusable tools, a second record stream applies: chemical indicators, and where relevant biological indicators, are governed by ISO 11140-1 and ISO 11607-1 for the packaging side. That record belongs in a sterilization log, not on the par sheet.

Where med spa ordering usually goes wrong

Four failure patterns account for most stockouts. The first is ordering in the unit the supplier quotes rather than the unit the room uses, so a case price looks attractive and the storage room fills with one size. The second is treating the safety margin as optional during a promotional week, when client volume can double. The third is a single person holding the reorder knowledge, which fails the week that person takes vacation.

The fourth is the quiet one: the par sheet is never updated after a treatment is added to the menu. A new body treatment that uses two extra gauze squares and a longer paper run changes the weekly figure by a few percent, which compounds over a quarter into a recurring shortage that nobody can explain.

Setting the reorder point and the order cycle

The reorder point must cover usage during lead time, plus a buffer for a late delivery. With a two-week lead time and forty masks a week, the trigger is around 100 masks: enough to keep treating for two weeks if the delivery slips, without holding a second par level in reserve.

Write the reorder point on the same sheet as the par, in the same unit. Then decide who checks it and when. A Monday morning count before the first client is workable; a Friday afternoon count after a full week is not, because the number is already distorted by the week's usage.

Building the first purchase order

Start with group A only, at par, and accept that the first order will look large. A spa that has been buying reactively is usually carrying less than half a par level, so the first order closes a gap rather than establishing a habit. After that, orders track usage and the carton count per month settles into a predictable band.

Where a case price is available, compare the cost per treatment rather than the cost per case. A case of 60 repair masks is only better value if the masks are used before the shelf life becomes a question, and for a spa seeing forty clients a week that is roughly six weeks of stock — comfortable.

Buying for a facility? Open a wholesale and institutional account for case pricing, purchase-order billing and a named account contact at CliniEco Medical. Reselling? become a distributor.

What the room actually orders

Four products cover most of the table above. The hydrating repair mask is sold to clinics from 300 masks, which is five cases of 60, and that is the par the worked example rounds up to. The 21 inch smooth table paper in 12-roll cases is the format most treatment tables take, and the sterile 12-ply gauze in 200-packs is the square most spas use for serum and cleanser removal.

Retail-facing items follow a different rule. Silicone scar gel is dispensed to clients as well as used in the room, so its par level sits between a consumable and a retail line and should be reviewed with the retail stock rather than the clinical stock. Both sit inside the medical aesthetics range along with the other treatment room items.

When to recalculate

Recalculate when the room count changes, when a treatment is added or retired, when a supplier's pack size changes, and once a quarter regardless. Keep the previous version of the sheet. A par level is a working document, and the version history is how you explain a cost line that moved without a price change.

References

1. Ontario Regulation 136/18, Personal Service Settings, under the Health Protection and Promotion Act (checked 20 October 2026)
2. Public Health Ontario — Personal service settings: infection prevention and control (checked 20 October 2026)
3. Toronto Public Health — BodySafe programme for personal service settings (checked 20 October 2026)
4. Public Health Ontario — Infection prevention and control (checked 20 October 2026)
5. Public Health Ontario — Environmental cleaning (checked 20 October 2026)
6. Public Health Ontario — Hand hygiene (checked 20 October 2026)
7. IPAC Canada — infection prevention and control guidelines (checked 20 October 2026)
8. CCOHS — OSH Answers: personal protective equipment (checked 20 October 2026)
9. CCOHS — OSH Answers: biological hazards (checked 20 October 2026)
10. CCOHS — OSH Answers: good hygiene practices (checked 20 October 2026)
11. ASTM F2100 — Standard specification for performance of materials used in medical face masks (checked 20 October 2026)
12. ISO 11140-1 — Sterilization of health care products, chemical indicators, general requirements (checked 20 October 2026)
13. ISO 11607-1 — Packaging for terminally sterilized medical devices (checked 20 October 2026)
14. Ontario — Guideline C-4: The management of biomedical waste in Ontario (checked 20 October 2026)
15. AAMI — standards catalogue for sterilization and packaging (checked 20 October 2026)
16. Workplace Safety and Prevention Services — resource library (checked 20 October 2026)

Printable companion: the clinic supply planner takes a client count and a per-treatment usage rate and returns the case quantity to hold, which is the same arithmetic worked by hand below.

If the room mix changes faster than the spreadsheet does, the supply planning worksheet recalculates the par in selling units, so a shift from two treatment rooms to three does not quietly leave you short.

Related Reading

• Where to buy treatment room disposable supplies in Canada for aesthetic clinics
• How do you set par levels for a Canadian clinic? A stocking formula
• Post-procedure repair serum wholesale Canada: case sizes for med spas

Frequently Asked Questions

How many repair masks should a med spa hold at one time?

Work from clients, not from shelf space. A two-room spa running 40 clients a week uses roughly 40 masks a week, so a four-week cycle needs about 160 and a 25 percent safety margin brings it to 200. Because the wholesale line starts at 300 masks, which is five cases of 60, the par rounds up to five cases and the reorder point sits at two cases.

Do single-use rules in Ontario change how I calculate a par level?

They change what counts as a unit. Under Ontario Regulation 136/18 a personal service setting must not reuse an item that is designated single use, so a mask, a gauze square or a length of table paper is consumed once per client with no reprocessing step to stretch it. That makes the per-client figure the only variable you need.

Which items are worth putting on a par level?

Items that stop a treatment when they run out. For most spas that is the post-treatment mask, disinfecting wipes, gauze, table paper and gloves. Items bought once or twice a year, such as a spare trolley or a device consumable kit, belong on a calendar reminder instead of a par sheet.

How is a reorder point different from a par level?

The par level is what you hold after a delivery lands. The reorder point is the quantity that triggers the next order and it must cover usage during the supplier lead time plus a buffer. A spa using 40 masks a week with a two-week lead time needs a reorder point near 100 masks, not near zero.

Should the par level be written in units or in cases?

In the unit you actually receive. Wipes arrive as 160-wipe canisters, table paper as a 12-roll case, masks as cases of 60. Counting cases is something a treatment coordinator can verify in ten seconds; counting individual wipes is not, and it will not be done consistently.

How often should a med spa recalculate its par levels?

Quarterly, and immediately after any change in room count, treatment menu or practitioner roster. A spa that adds a third treatment room without touching the par sheet will run short on masks and paper within a month, because the per-client figure was never the problem.

What do inspectors look for in a treatment room stock area?

Storage that keeps single-use items off the floor, out of splash range and away from cleaning chemicals, plus evidence that opened stock is used and replaced. A labelled par sheet with a date is the simplest record that a room is being restocked deliberately rather than reactively.

Can a med spa buy these consumables by purchase order instead of a card?

Yes. Institutional accounts are set up for case pricing and purchase-order billing, which is how most multi-room spas and small chains buy. CliniEco Medical supplies repair masks, silicone scar gel, table paper and gauze on that basis; the planning arithmetic above is the same either way.

Last updated: October 2026. CliniEco Medical is a licensed medical device establishment (MDEL #35334).