
Most problems in aesthetic medicine can be anticipated at the first visit. Dr Sin Yong sets out the warning signs he would want a friend to notice, and what a careful clinic does instead.
WhatsApp to Enquire →Key facts ↓The main red flags are pressure to pay for a prepaid package on the day, anyone other than a registered doctor injecting, products you cannot see or identify, photographs used to promise a result, and no real discussion of risk. A careful clinic examines you, explains alternatives, names the product and gives you time to decide.
Complications in aesthetic medicine are uncommon, but they are real. Bruising and swelling are routine. Rarer events, such as filler entering a blood vessel, need treatment within minutes. Published analyses of filler and laser litigation show that problems are more likely where procedures are done by non-physician operators or outside a medical setting, and where planning and consent are thin.
As a patient, you cannot audit a clinic’s technique. You can notice how it behaves before you have agreed to anything. Pressure, vagueness and promises are all visible at the first visit, and they usually reflect how the rest of the experience will go.
This guide applies to any clinic in Singapore, including ours. The same standards apply at IN Eternity Clinic, and you are welcome to hold us to them.

A consultation that ends with a choice between a large prepaid bundle “at today’s price” and a much higher single-session price is a sales process, not a medical one. A prepaid bundle commits you to a number of sessions before anyone knows how your skin or face responds to the first. A time limit adds urgency to a decision that should never be urgent.
Singapore’s rules on medical advertising restrict inducements, and the Singapore Medical Council expects doctors to give patients enough information, and enough time, to make an informed decision. A doctor-led plan is usually staged: one step, a review, then a decision about the next. At IN Eternity Clinic, plans are not sold as packages. Dr Sin Yong gives a written quote after assessment, and patients are free to take it home. See how fees work.
Plans sometimes change for good reasons. But a new area suggested while you are already numbed and lying down, with a price mentioned in passing, is not a fair moment to decide: you cannot step back, ask questions or compare. A careful clinic agrees the plan and its cost before treatment begins. If something new is worth considering, it is discussed when you are sitting up, with the reasons, risks and cost explained, and it can wait for another visit.
“If a first visit is mostly about price and urgency, the conversation about risk has not happened. That alone is reason to leave.”
Botulinum toxin is a prescription-only medicine. Dermal fillers, collagen stimulators and injectable skin boosters are medical devices placed under the skin. Injecting them safely depends on knowing facial anatomy, including the danger zones where arteries run close to the surface, and on being able to recognise and treat a vascular event straight away.
Red flags include a doctor who consults and then leaves someone else to inject, treatment offered in a salon, hotel room or private home, and a vague answer to the question “who will be doing it?”. The same applies to medical lasers. Settings for darker skin types call for a doctor’s judgement, because too much energy can leave burns or pigment changes that take months to settle.
The Singapore Medical Council’s ethical code also expects a doctor who delegates part of a patient’s care to remain responsible for that patient. For injectables, the safest arrangement is simple: the doctor who assessed you is the one who treats you. Ask directly who will perform each step, then check that person on the Singapore Medical Council register. Our guide to checking a clinic licence and doctor shows how.

You are entitled to know what is being placed in your skin. A careful clinic names the product, shows you the box or label, and records the product and batch in your notes so that it can be traced later. If you are told a product is “the same as” a well-known brand, or it appears already drawn up from a source you cannot see, ask why.
Unregistered products, grey imports and online purchases sit outside the supply chain the Health Sciences Authority regulates. Counterfeit or poorly stored products can be contaminated, mislabelled or simply not what the label says. Storage matters too: some products must be kept within a set temperature range, and a product that has been mishandled may not behave as expected. The saving is rarely large enough to justify that uncertainty. Our page on product sourcing explains what we expect from suppliers.
Result photographs and confident promises are a sign that a clinic is selling an outcome rather than assessing a person. Faces differ in bone structure, fat, skin thickness and the way they age, and two people having the same treatment can respond very differently. A clinic that tells you exactly how you will look, how long it will last, that there will be nothing to recover from, or that it will not hurt at all, is not giving you medical information.
Singapore’s rules on medical advertising do not permit patient endorsements, superlatives or exaggerated claims, for exactly this reason. Honest language sounds different: “most people”, “it varies”, “we will review you at four weeks”. It is less exciting, and it is accurate.
Be equally wary of urgency dressed up as advice, such as being told you must start now “before it gets worse”. Ageing and most skin concerns change slowly. A few weeks spent thinking, reading and asking questions rarely changes the outcome, but it often changes the decision.
A real consultation covers your medical history, medicines and supplements, previous treatments (including filler you may have forgotten), pregnancy or breastfeeding, and how your skin has healed in the past. It covers the common effects you should expect and the rare complications you need to know about. For filler, it includes what the clinic will do if a blood vessel is affected: hyaluronidase on site, and a doctor who knows how to use it.
It also covers what happens next: written aftercare, a review appointment and a way to reach the clinic if something does not look right. If the consultation lasts ten minutes and is mostly about price, the conversation about risk has not happened.
| Red flag | What a careful clinic does |
|---|---|
| “Today only” package price | Written quote after assessment; time to decide |
| Non-doctor injecting, or doctor absent | The registered doctor performs the procedure |
| Product not shown or named | Product shown; name and batch recorded |
| Result promised with photographs | Realistic range explained; review planned |
| No discussion of risk | Common and rare risks explained; emergency plan in place |
| No follow-up | Written aftercare; review date; direct contact |
A clinic does not need to be large or new to pass these tests. It needs to behave like a medical practice. If you notice two or more of these red flags at the same visit, it is reasonable to leave without treatment and think again. Our guide to your first visit describes what a consultation at IN Eternity Clinic involves.
If treatment elsewhere has already left you concerned, contact the clinic that treated you first; they hold your records and know what was used. Sudden severe pain, a pale, dusky or mottled patch, or any change in vision after filler needs same-day medical attention, and a change in vision needs a hospital emergency department.
If the problem is slower — a face that looks heavier, a lump, an uneven result — a second opinion can help, and it is worth bringing whatever records you have. At IN Eternity Clinic, filler problems are assessed with ultrasound before anything is dissolved or added; see filler correction.
Pressure to pay for a prepaid package on the day, anyone other than a registered doctor injecting, products you cannot see or identify, promises of a particular result, and a consultation with no discussion of risks or follow-up. Two or more of these at the same visit is a good reason to leave without treatment and think again.
Injections of botulinum toxin and fillers are medical procedures that call for anatomical knowledge and the ability to manage complications on the spot. Ask who will perform the treatment and expect the answer to be the registered doctor who assessed you. If the doctor leaves before the injecting starts, consider that a warning sign.
Because a package commits you to a number of sessions before anyone knows how you respond to the first. A staged plan with reviews lets the doctor adjust or stop. Singapore’s professional and advertising rules also discourage inducements that push patients to decide quickly. At IN Eternity Clinic, Dr Sin Yong gives a written quote after assessment instead.
Ask to see the box or label before treatment, and ask for the product name and batch to be recorded in your notes. Genuine products come through authorised suppliers and are registered with the Health Sciences Authority where required. Be wary of products already drawn up out of sight, unfamiliar brands described as equivalent, or prices far below the usual range.
Not always, but a price far below the usual range has to come from somewhere: a different product, a smaller amount, less doctor time or a different setting. Ask what is included and who will perform the treatment. The aim is not to pay more, but to understand exactly what you are paying for before you agree.
Both the common effects, such as swelling, redness and bruising, and the rare but serious ones, such as vascular occlusion after filler or burns and pigment change after laser. You should also hear what the clinic does if a complication happens, what aftercare involves and when you will be reviewed. A clinic that says there are no risks is not being straightforward.
Yes, and you should feel able to. A consultation is for diagnosis and advice. A careful clinic gives you a written plan and quote, answers your questions and lets you decide later. If you feel you cannot leave without paying a deposit or committing to a course, that pressure is the red flag.
IN Eternity Clinic, 9 Scotts Road, #12-01 Pacific Plaza, Singapore 228210. By appointment with Medical Director Dr Sin Yong. Monday to Saturday, 11am to 8pm. WhatsApp or call +65 8815 3008.
These sources describe mechanisms and general evidence. They are not a promise of any individual result; suitability is decided at an in-person assessment.