An aesthetic device purchase is a conversation with a supplier — and the questions you ask determine how honest that conversation is. Device listings are written to close sales; supplier answers, taken together, reveal whether the seller understands the product, the class, the consumables and the support obligations. This guide gives you the full question list, organized by topic, and explains how to read the answers.
The right questions reveal the right supplier
Questions are the cheapest quality control you will ever run on a supplier. A knowledgeable seller welcomes specific questions because specifics display competence; a reseller with no product depth answers in adjectives and deflects. Asking the same questions of every candidate makes responses comparable, and comparison is where the real differences surface.
Structure matters as much as content. Ask in writing, one topic at a time, and keep the answers with your order records. Written answers become documentation if a dispute arises; verbal assurances evaporate. Suppliers who refuse to answer in writing are telling you how they handle accountability.
Questions about the device itself
Start with the machine: What is the exact model, and what does the box contain? What is the device class — home-use or professional — and what does the manual say it is for? Which cartridges, depths and energy settings are included, and what do the specifications document? The device questions establish what you are actually buying before any service or price discussion.
Add an evidence question to the device block: What studies or documentation support this model's claims, and can you share them? Suppliers who cannot name the evidence for their own product are asking you to accept marketing as proof. One useful calibration is the home-used HIFU study, which evaluated a fixed consumer protocol rather than an extreme claim. Home-device evidence reviews01481-2/fulltext) treat model-specific evidence as the baseline for serious evaluation — your supplier should too.
Questions about safety and labeling
Safety questions force the supplier to describe the device's boundaries: What do the certification markings cover for this class? What are the contraindications? What does the manual say about pregnancy, implanted devices and skin conditions? What response is normal, and what should make a user stop? A supplier who cannot discuss contraindications cannot help you use the device safely.
Check the class story across answers. A "professional" machine offered without training context, or a home device described with clinical claims, is blurring the line safety depends on. Regulatory records for professional systems show what documented claims look like — specific indications and measured language — and consumer devices should be labeled with equivalent clarity. For home devices, CE marking guidance explains what marks do and do not certify, and the published safety literature shows why misuse and contraindicated use are the questions that matter.
Questions about sourcing and authenticity
Authenticity questions protect you from the counterfeit market: Where do you source your units? Are they new and factory-sealed? Does each unit carry a serial number, and is it registered against my order? How can I verify the unit after delivery? What happens if verification fails? These are not niche concerns — counterfeits carry electrical and safety risks, not just financial loss.
Ask for the process, not the promise. Our Authenticity page documents how we handle serial registration and the replacement guarantee if a unit is not genuine — the kind of concrete process to request from any seller. If a supplier describes verification vaguely, assume the process does not exist.
Questions about consumables
Consumable questions complete the cost picture: What cartridges, pads or gels does the device require? How many sessions does each deliver, and what is the replacement cost? Are replacements reliably in stock, and how are they shipped? Are third-party consumables allowed, and what does using them do to the warranty?
Consumable availability is a reliability question, not just a budget question. A device whose cartridges are perpetually out of stock is a device that cannot run its routine. Ask for current stock status and typical refill turnaround, and factor the answers into your choice — our FAQ answers cartridge inclusion and replacement questions for the models we stock.
Questions about shipping
Shipping questions matter most for international buyers: What are the delivery windows? Is tracking provided, and what happens if the shipment is delayed or lost? Who is responsible for customs clearance and import duties? Is the voltage compatible with my country, or does the unit need a converter? What happens if the device is damaged in transit?
Shipping terms are price terms. Duties, insurance and return shipping can change a deal's true cost dramatically, and the shipping policy should state who carries which risk at each stage. If the supplier's shipping answers are vague, request them in writing before comparing prices across sellers.
Questions about warranty and support
Warranty questions define the future: What does the warranty cover and exclude? Who pays shipping for repairs? What is the repair or replacement process and typical turnaround? How is support structured — who answers, within what time, through which channel? What happens after the warranty period? The answers convert "warranty included" from a slogan into a contract.
Support depth separates device sellers from device shippers. Setup, settings and troubleshooting questions should have a defined path to a trained answer. Our warranty page publishes the repair-or-replace promise and specialist response commitments we offer; whatever supplier you choose, demand the same documentation in writing.
Questions about returns
Returns questions protect the change-of-mind scenario: What is the return window? Who pays return shipping? What condition must the device be in — unopened, sealed, or lightly tested? Are consumables returnable if the box is opened? How are refunds processed, and how long do they take? A clear returns policy is the seller's confidence in its own product.
Read the returns answers against the product category. Energy devices have hygiene implications, so sealed or unopened conditions are common and reasonable; what matters is that the policy is stated before purchase. The returns and refunds policy explains the change-of-mind terms we publish — the clarity to expect from any serious store.
Reading the answers honestly
Read answers for three qualities: specificity, documentation and consistency. Specific answers name models, numbers and processes; vague answers use superlatives. Documented answers point to manuals, policies and records; undocumented answers ask for trust. Consistent answers match the listing, the manual and the policy pages; inconsistent answers reveal which layer is fiction.
Weight silence heavily. A supplier who ignores a written question has answered it — the answer is that the topic is weak. Cross-check answers against independent evidence where possible: regulatory databases for cleared devices, published studies and the device manual all serve as external checks on supplier claims.
When to walk away
Walk away when answers contradict the listing, when documentation is refused, when class labels blur, when authenticity processes are vague, or when the supplier becomes hostile to specific questions. Each of these signals a seller who will be harder to reach after payment than before it. There are enough transparent suppliers that no device is worth these risks.
Walking away is not a failure of the process — it is the process working. The questions exist to separate products from problems, and a supplier who cannot survive the questions has told you everything you need to know. Spend your money where answers flow; that is where support will flow later.
A supplier question list
- [ ] Exact model and full box contents confirmed
- [ ] Device class and markings explained
- [ ] Manual and contraindications available pre-purchase
- [ ] Model-specific evidence shared
- [ ] Sourcing and serial-number process described
- [ ] Consumable lifespan, cost and availability stated
- [ ] Shipping, duties and damage terms in writing
- [ ] Warranty coverage and exclusions documented
- [ ] Support structure and response times defined
- [ ] Returns policy and conditions stated
Send the list before ordering and keep the answers; a device purchase with documented answers is a different product from one without them.
FAQ
How many suppliers should I question before buying?
At least two, ideally three. Comparing written answers across suppliers reveals what is standard practice and what is exceptional — and the differences usually point to the right seller faster than any single conversation.
What if the supplier is a marketplace reseller with no direct support?
Treat that as a structural finding: ask who provides warranty, consumables and troubleshooting — the brand, the marketplace or nobody. If support is outsourced to silence, factor that risk into the price you are willing to pay.
Should I ask all questions before or after choosing a device?
Before. The questions are selection tools, not post-purchase formalities — device class, evidence and consumable economics decide which device you should choose at all.
Is it reasonable to expect written answers from a busy supplier?
Yes. A supplier that cannot answer written pre-sales questions will not answer written post-sales ones. Written answers are not a burden on a professional seller; they are the basic format of accountable commerce.
Ready to put a supplier through its paces? Email sales@liftwavepro.com with this question list and we will answer every line in writing — including the ones where the honest answer is that another supplier or a different device suits you better.