The quality of a HIFU purchase is decided by the questions you ask before checkout — and by the answers you accept. A seller who answers specifically, in writing, about the device, its cartridges, its sourcing and its policies is describing a product you can trust; a seller who answers in adjectives is describing a hope. This article is a complete pre-purchase questionnaire, organized by topic, with notes on what good answers look like and which answers should end the conversation.
Use it as a checklist against every seller you contact, and keep the written answers with your comparison so the decision is documented before the device arrives.
Why Do Answers Separate Sellers?
Specific written answers describe a real chain; adjectives describe hope.
The same question asked of two sellers separates them faster than any spec comparison. One seller answers with model details, part numbers and policy references; the other answers with “100% genuine, best quality.” The first is describing an inventory it understands; the second is describing a script. Question quality is the cheapest due diligence available, because it costs nothing and exposes everything.
Two rules make the questionnaire work. Ask through a real support channel and keep the answers in writing, because written answers are the record you can use later. And ask every seller the same questions, because comparability comes from identical evidence. A seller’s willingness to answer — completely, specifically and without evasion — is itself the first answer you receive.
What Device Questions Should You Ask?
Mechanism, depths, frequencies, energy per point and device class.
Start with the device itself. What technology and mechanism does it use, and how is it described in the manual? What focal depths does it offer, and what frequency pairs with each depth? What energy is delivered per treatment point, and how many points does a full session use? What modes or presets exist, and what parameters does each preset contain? What is the device class — home-use or professional-grade — and who is the intended user?
Good answers name numbers and classes; poor answers name technologies and hopes. Understanding the mechanism lets you check whether the answers are internally consistent — a device claiming deep HIFU treatment should be able to state its depths and frequencies. If the seller cannot describe its own device at this level, the device description is marketing, and the risk is yours.
Which Safety Questions Matter?
Contact detection, limits, intended use, warnings and testing standards.
Safety questions test whether the device protects an untrained user. What safety features activate if the handpiece loses skin contact, runs too long or exceeds a session limit? What does the label state about intended use, treatment areas and who should not use the device? What testing or certification backs the safety claims, and can you name the standard and issuing body? Electrical safety testing against standards like IEC 60601-1 is the kind of specific answer that separates tested devices from asserted ones.
Also ask the labeling question that most buyers skip: what does the device not do? A complete answer states that the device is cosmetic, results vary, and it does not replace medical treatment. Design-for-home-use guidance reflects the principle behind these questions: a device for lay users must account for their errors. If the seller cannot describe the safety story, the safety story is absent.
What Should You Ask About Cartridges?
Compatible models, depths, shot counts, prices and authenticity checks.
Cartridge questions define the device’s capability and its running cost. Which cartridge models are compatible with this exact device? What depth and frequency does each deliver, and which treatment area is each designed for? How many shots or sessions does a cartridge provide, and what does a replacement cost? How do I verify that a replacement cartridge is genuine, and where do I buy them?
The answers reveal the system behind the device. A device with a documented cartridge line, published depths and a genuine replacement channel is a system; one with vague cartridge answers is a gadget whose future is uncertain. Ask for part numbers in writing and check them against the manual. The clinical literature shows cartridges are depth-setting tools, so cartridge answers are treatment answers.
What Sourcing Questions Should You Ask?
Manufacturer, quality system, unit status, serialization and inspections.
Sourcing questions verify where the device comes from. Who manufactured it, and under what quality system? Is this unit new, sealed and serial-numbered, or could it be refurbished, display or gray-market stock? How is the serial number registered, and how do I verify my unit after delivery? What checks happen between the factory and my door — batch testing, unit testing, pre-shipment inspection?
Good sourcing answers are specific and documentable; “from a certified manufacturer” without names or certificates is a phrase, not an answer. Sourcing is where counterfeit and gray-market risk lives, and the seller’s sourcing story is the map of that risk. Ask how provenance is verified, and treat an inability to answer as the finding. Our authenticity page explains the checks a buyer should expect from a seller who documents its chain.
What Shipping Questions Should You Ask?
Delivery time, tracking, customs responsibility and voltage variant.
Shipping questions protect the delivery experience. How long does delivery take to my country, and is tracking provided? Who handles customs duties and taxes, and who is responsible if they are charged? What voltage variant and plug type will the unit ship with, and is it correct for my country? What happens if the package is damaged or lost in transit?
International device buying makes these questions mandatory rather than optional. Consumer guidance on online purchases emphasizes verifying the seller and understanding terms before paying, and shipping terms are the terms most buyers skip. Ask for the delivery process in writing, including the customs responsibility. A seller that ships internationally every day will answer without hesitation.
Customs responsibility is the clause most likely to surprise international buyers, so confirm it before the order ships — not when the courier calls with a bill.
What Warranty Questions Should You Ask?
Coverage, duration, exclusions, claim process and documentation needed.
Warranty questions define the device’s long-term protection. What does the warranty cover, and for how long? What voids it — non-approved accessories, incorrect voltage, unauthorized repairs? How do I make a claim, and who handles the repair or replacement? Is the warranty honored internationally, or only in the seller’s country? What documentation do I need to keep?
The warranty is the seller’s promise in writing, and its specificity is the test. A warranty that names coverage, exclusions and process is a real commitment; one that says “full warranty” without details is a phrase. Ask for the warranty document before purchase, read the exclusions, and confirm what the coverage assumes about genuine parts and correct use. Our warranty page is the model of what a written warranty should state.
What Return Questions Should You Ask?
Window, conditions, shipping cost and whether opened devices qualify.
Return questions protect the purchase if it is wrong. What is the return window, and does it allow change of mind or only defective units? Who pays return shipping, and in what condition must the device be returned? Can an opened device be returned, or only a sealed one? How long does a refund or exchange take, and how does the process start?
Return terms are especially important for a considered, expensive purchase — and for gift buying, where the recipient’s suitability is unknown. A 14-day change-of-mind window with a clear process is the standard a buyer should expect; a “no returns on devices” policy shifts all the risk to you. Ask for the policy document, not the summary, and confirm the process in writing before ordering.
What Support Questions Should You Ask?
Channels, hours, response time, help scope and parts availability.
Support questions test the relationship after the sale. What support channels exist — email, WhatsApp, phone — and what are the hours? How fast are responses, and is support human or automated? What do you help with: setup, usage, troubleshooting, cartridge questions? What happens if the device develops a fault in month six or year two? Are replacement parts and accessories still available over time?
The support answers preview the entire ownership experience, because device questions arrive months after purchase. A seller with stated response times, human channels and a parts supply is describing a service; one with a chat bot and no stated process is describing a transaction. Test support before buying by asking a technical question — the quality of the pre-sales answer is the quality of the after-sales answer.
How Do You Evaluate the Answers?
Score specificity, completeness and honesty; treat evasion as a finding.
| Answer quality | What it looks like |
|---|---|
| Specific | Numbers, part numbers, named standards |
| Complete | Answers the question and the caveat |
| Honest | States the device’s limits |
| Evasive | Deflects or answers in adjectives |
Evaluating answers is its own skill. Score specificity: numbers, part numbers, policy references and named standards beat adjectives every time. Score completeness: a good answer answers the question asked, and a great one adds the caveat you did not know to ask. Score honesty: a seller who admits a device’s limits — “this class suits mild laxity, not significant sagging” — is demonstrating the behavior you will need later.
Weight evasion as a negative finding rather than a neutral one. A seller who deflects sourcing questions, cannot state cartridge part numbers or refuses to put policies in writing is not being cautious; it is being evasive. The honest-results framework applies to sellers too: the ones who state limits are the ones you can trust with limits. Keep the written answers with your comparison; they become the document you judge the device against.
A Question Checklist
The complete checklist in one sweep: device mechanism, depths and parameters; safety features and labeling; cartridge compatibility and cost; sourcing and provenance; shipping, voltage and customs; warranty coverage and exclusions; return window and process; and support channels and response commitments. Ask the same list of every seller, in writing, through a real channel, and evaluate specificity, completeness and honesty. The checklist works because it is identical for every seller — comparability is the point.
Start with our FAQ to answer the common questions before you ask, then use the contact page to ask us the full checklist — we answer in writing, including the answers that recommend against our own devices. A purchase decision made on written answers is a decision you can stand behind when the device arrives.
FAQ
How many questions should I ask a HIFU seller before buying?
Ask enough to complete the categories in this guide: device, safety, cartridges, sourcing, shipping, warranty, returns and support — roughly fifteen to twenty questions total. Quality matters more than quantity: a few specific, answered questions reveal more than a long list of generic ones. If a seller answers completely and in writing, you can shorten the process for the next device; if answers are evasive, keep asking until the evasion is confirmed.
Which answers should make me walk away from a seller?
Walk away when answers are consistently vague, when sourcing cannot be documented, when policies exist only in chat rather than writing, or when a seller refuses to state the device’s class, depths or limits. Also walk away from pressure tactics — urgency that demands purchase before questions are answered is a strategy, not a courtesy. One or two vague answers may be a communication gap; a pattern of evasion is a seller finding.
Should I ask questions by email or through chat?
Use a channel that leaves a written record — email is ideal because it is searchable, timestamped and attached to the seller’s address. Chat can be useful for quick answers, but it is harder to keep and easier to disown. Ask the important questions by email and keep the thread with your order documents. Written answers are the record that protects you if the device or the seller’s story changes later.
Is it reasonable to ask a seller about its sourcing and manufacturer?
Yes, and a good seller expects it. Devices are expensive, electrical and pressed against your face — provenance is a legitimate specification, not a secret. Sellers with documented chains answer with manufacturer names, quality-system references and serial-number processes; sellers without them deflect. If a seller treats sourcing questions as unreasonable, that reaction is your answer about the chain — and about the support you would receive after the sale.
Ready to ask the checklist? Send us the full questionnaire through the contact page and we will answer in writing — including the answers that recommend against our devices when they do not fit your goal.