Used Aesthetic Laser Inspection Checklist: 25 Things to Check Before You Pay

Check these 25 items, in this order, before you pay.

Paperwork (5)

1. Match the serial plate to the paperwork. Pass: the serial number on the console label matches the invoice, the service records and the seller's listing. Walk away if: any number differs or the plate is missing.
2. Ask for the original invoice or bill of sale. Pass: the seller can show how they came to own the device. Walk away if: the seller can't document ownership.
3. Read the service records. Pass: dated service visits name who did the work and which parts were replaced. Walk away if: there is no service history at all.
4. Look up the 510(k) number and its indication. Pass: the FDA 510(k) database lists the model, and the cleared indication covers the treatments you plan to sell. Walk away if: the listing claims wavelengths or uses the clearance doesn't cover.
5. Ask the manufacturer about transfer status. Pass: you know in writing whether the brand charges a transfer or recertification fee and whether it will service the unit for a second owner. Walk away if: the seller says the fee is "nothing to worry about" and you can't confirm it.

A 510(k) is a premarket submission showing that a device is substantially equivalent to a legally marketed device, so a laser marketed under a 510(k) is FDA-cleared, not FDA-approved.

PicoPlus's 510(k), K173700, describes 1064 nm and 532 nm output, so a listing that adds other wavelengths needs a clearance number for them.

Outside and housing (5)

1. Photograph every side of the console. Pass: the housing has no cracks, dents or signs of a drop. Walk away if: the casing is cracked near the laser head or delivery system.
2. Check under and behind the unit for fluid. Pass: the floor and rear fittings are dry. Walk away if: you see coolant stains, drips or a damp base.
3. Listen to the fans and pump at start-up. Pass: the noise is steady and even. Walk away if: you hear grinding, clapping or a rising whine.
4. Bend-test the cables and footswitch. Pass: the power cord, handpiece cables and footswitch show no cuts, tape or crushed sections. Walk away if: any cable is spliced or taped.
5. Roll the console and set the brakes. Pass: the wheels turn and the brakes hold. Walk away if: the unit can't be moved safely onto a crate or lift gate.

Power-on and software (5)

1. Time a cold start. Pass: the laser boots from fully off and passes its self-test on camera. Walk away if: the seller warms it up before the call or won't power it down.
2. Read the error log. Pass: the seller shows the log on screen and explains every code. Walk away if: the log is cleared just before the sale or the seller won't open it.
3. Record the software version. Pass: the version is on the screen and in the listing. Walk away if: the version shown doesn't match what was advertised.
4. Confirm license or activation status. Pass: the device runs without a code, or the manufacturer confirms it will issue codes and refills to you. Walk away if: the device needs a code or digital refill the manufacturer won't sell to a second owner.
5. Test the emergency stop and interlock. Pass: the emergency-off button and remote interlock stop emission at once. Walk away if: either one has been bypassed.

Some systems keep no log: Solta told the FDA in 2021 that the Fraxel Dual keeps no system or data logs, though its power-on self-test triggers error codes when the system is outside acceptable limits.

Venus Concept says its 30-day activation code technology limits unauthorized resale, so a used Venus Legacy or Versa can stop working without a code from Venus.

Look up any code you see in the Aesthetic Laser Error Codes guide.

Test fire and output (5)

1. Wear wavelength-matched eyewear for every test fire. Pass: everyone in the room wears eyewear rated for the laser's wavelength. Walk away if: the seller fires without eyewear.
2. Test-fire at 3 settings. Pass: low, mid and high settings each fire without a fault. Walk away if: the unit faults at higher energy or only fires at one setting.
3. Measure output with an external power or energy meter. Pass: the meter reading matches the manufacturer's spec for each setting, and the result is written down. Walk away if: there is no meter reading, only the number on the screen.
4. Check the cooling system. Pass: cryogen spray, chiller or contact cooling works on every pulse. Walk away if: cooling is weak, intermittent or disconnected.
5. Check coolant level and flow. Pass: the water-level and flow checks pass at power-on. Walk away if: the laser throws a low-water or flow fault.

Sciton's Joule service sheet lists the water-level check as one of the first power-on checks, followed by water flow.

Candela's Gentle Pro Series and Vbeam lasers use the cryogen Dynamic Cooling Device, so a working spray and a canister on hand belong on the list.

Handpieces and accessories (5)

1. Record each count separately. Pass: you have the system count, each handpiece count and, on flashlamp systems, the count since the last lamp change. Walk away if: the seller gives one number for the whole system.
2. Inspect windows, tips and the articulated arm. Pass: optics are clean and unchipped, and a CO2 laser's articulated arm moves freely. Walk away if: a window is burned or the arm binds.
3. Count the spot sizes and handpieces. Pass: every handpiece and spot size in the listing is present and fires. Walk away if: a listed handpiece is missing or untested.
4. Check the eyewear in the kit. Pass: the kit includes eyewear for each wavelength the laser emits. Walk away if: there is no eyewear or it's for the wrong wavelength.
5. Read consumables expiry dates. Pass: tips, cartridges and pads are sealed and in date. Walk away if: the bundle includes opened or expired consumables counted as value.

One used Motus AX listing reported 5,210,279 system pulses, a lamp count of 1,248,130 and 1,160,518 pulses since the last lamp change, so ask for all three numbers.

Resellers openly list expired consumables, such as Clear + Brilliant tips marked "EXP: 2023-01-24" and an opened Thermage tip whose remaining REPs the seller couldn't confirm.

How to read a count against rated life is in the guide to reading inspection pulse counts against handpiece life.

Inspect remotely on a live video call where the seller powers on and fires the laser, and ask for a written output test.

1. Book a live video call, not a pre-recorded clip or photos.
2. Ask the seller to point one camera at the screen and one at the power meter during each test fire.
3. Get a close-up of the serial plate while the camera is rolling.
4. Ask for a screenshot of the error log and the software version screen.
5. Get the output test, counts and warranty terms in a written report.
6. Ask for photos of the crate and the packing plan before freight is booked.

You don't need eyewear on a video call, but the seller and anyone in the room does.

Crating and freight are covered in the guide to crating and freighting a laser after a remote inspection.

Yes, for any deal where you can't watch the laser fire live, and for any brand that only services units its own engineers have checked.

Candela's 2020 buyer's blog warns that third-party technicians may not be manufacturer-certified and that parts may be hard to find (manufacturer view).

Merz says it is the only authorized service provider for Ultherapy, and using an unauthorized provider voids all warranties and service contracts.

Get a written quote before you book an independent inspection.

Stop the deal if you see any of these 7 signs.

• The seller won't power on and fire the laser on a live call.
• There is no output test, only the energy shown on the screen.
• There are no service records.
• The asking price sits far below other listings for the same model and year.
• The seller pushes for a deposit before you've seen it fire.
• There are no written warranty or return terms.
• The serial number doesn't match the paperwork.

Dealer warranties vary: of 5 US used-laser dealers checked in November 2026, only one published a length, and it was 30 days.

A failed check either lowers the asking price by the cost of the fix or ends the deal.

The figures below are reseller asking prices and published fees as of November 2026; get a written repair quote for anything not listed.

BeautyHealth reports that many customers with Syndeo 1.0 and 2.0 builds had treatment interruptions, noise and low flow or clogs, so ask which build a used Syndeo is.

Candela does not publish a transfer or recertification fee for used systems bought from third parties.

Inspect first, then compare what you found with other listings for the same model in the full catalog of used lasers and aesthetic devices for sale.