Anti-Wrinkle Injection Aftercare: Do's, Don'ts, and What to Expect

You've had your anti-wrinkle injections. The treatment itself takes around 15–20 minutes, and the needles used are exceptionally fine — most clients describe the sensation as a mild pinprick at most. But what happens over the next two weeks matters enormously. The botulinum toxin is still localising to its target muscles, your skin is completing the microscopic healing process at each injection site, and your aftercare choices during this window can genuinely influence how clean, even, and long-lasting your results turn out to be.

This guide explains the key aftercare rules in detail — not just what they are, but why they exist — and sets realistic expectations for the results timeline, the two-week review, and how to get the most from each treatment cycle.

The Most Important Rule: No Lying Down for 4 Hours

If there is one aftercare instruction that practitioners emphasise above all others, it is this: do not lie down or tilt your head significantly forward within the first four hours of treatment.

The reason is product migration. Botulinum toxin is injected into precise locations to relax specific muscles — typically in the forehead, between the brows (the glabellar complex), or around the eyes. In the first few hours, before the toxin has fully bound to the local nerve endings at the neuromuscular junction, it can theoretically migrate beyond the intended treatment zone.

The consequences of migration depend on where the product moves to. With forehead injections, downward migration towards the brow depressors is the main concern, as this can cause brow heaviness or — in rare cases — upper eyelid ptosis (drooping). With glabellar injections, product moving upward can affect the frontalis muscle differently than intended. In most cases, migration effects are minor and self-limiting, resolving as the toxin naturally breaks down over the following weeks. But they are entirely preventable with straightforward aftercare.

Gravity is the relevant force here. Lying horizontally, or spending extended time with your head tilted forward — such as leaning over a desk or looking down at a phone for long periods — can encourage the product to drift before it has fully anchored. Standing or sitting upright with your head in a natural position is all that is required. You do not need to sit rigidly still for four hours; simply avoid lying down on a sofa or in bed, and try to keep your posture relatively upright.

After the four-hour mark, the toxin will have bound sufficiently to its target sites and the migration risk drops significantly. You can resume your normal resting positions from that point.

The First 24 Hours After Anti-Wrinkle Injections

Beyond the lying-down rule, the first 24 hours carry a few additional guidelines worth following carefully.

Do not touch, rub, or massage the treated areas. It is natural to be curious about how the injection sites feel, but applying pressure or friction to the skin can displace the product and increase bruising. Small raised bumps or mild firmness at injection points are normal immediately after treatment — these resolve within 20–30 minutes without any intervention.

Avoid applying heat to the face. Hot baths, steam rooms, saunas, and hot showers directed at the face all cause local vasodilation — the blood vessels widen, increasing blood flow to the area. This can worsen bruising and, in theory, contribute to product spread beyond the target zone. Lukewarm water for washing your face is perfectly fine.

Keep your skincare routine gentle. Cleanse lightly with a mild, non-stripping cleanser. Avoid harsh exfoliants, acids, or mechanical scrubs on the day of treatment and the day after. A simple, hydrating moisturiser and a broad-spectrum SPF are all you need. Applying make-up is acceptable from the day after treatment, but use a light touch — press product onto the skin rather than rubbing or dragging across the treated zones.

Avoid aspirin, ibuprofen, and other NSAIDs unless medically necessary, as these thin the blood and increase bruising risk. Paracetamol is fine if you experience a mild headache — which some clients do after forehead treatment, typically settling within a few hours.

Exercise After Anti-Wrinkle Injections

This is one of the most commonly asked-about restrictions, and for good reason — regular exercise is important and many clients are understandably reluctant to skip sessions.

The guidance is to avoid high-intensity exercise for at least 24 hours after treatment, with most practitioners advising 48 hours as a more comfortable buffer. The concerns are twofold. First, vigorous cardiovascular activity significantly elevates blood pressure and increases blood flow to the face, raising the risk of bruising at injection sites and potentially influencing how the product settles. Second, activities that involve lying face-down — certain gym exercises, yoga positions such as downward dog or forward bends — can create exactly the kind of head positioning that increases migration risk in the critical early hours.

Light walking on the day of treatment is generally considered fine. It is the high-intensity cardio, weight training, hot yoga, and contact sports that should wait until the following day or two. After 48 hours, you can return to your normal exercise routine without restriction.

One additional note: people who exercise very regularly and intensively tend to metabolise botulinum toxin more quickly than those who are less active. If you find your results wearing off faster than expected compared to friends who have the same treatment, this may be a contributing factor. Your practitioner can discuss appropriate dosing to account for this.

Alcohol and Anti-Wrinkle Injections

Alcohol acts as a vasodilator — it widens blood vessels and increases circulation — and also has mild blood-thinning effects. For these reasons, it is advisable to avoid alcohol for at least 24 hours before and after treatment.

On the day of treatment itself, alcohol will increase bruising risk at the injection sites. In the hours after treatment, drinking alcohol adds to the vasodilatory effects that aftercare is trying to minimise. A glass of wine the evening after your injections is unlikely to cause a significant problem, but if you have an important event coming up and want to minimise the risk of bruising, giving alcohol a wider berth for 24 hours before and after is a sensible approach.

Facial Treatments After Anti-Wrinkle Injections

A number of aesthetic and beauty treatments should be postponed after anti-wrinkle injections, both to protect the product and to avoid any interference with your skin's recovery.

Wait at least two weeks before:

The two-week guideline exists because this is the window during which the botulinum toxin is fully binding and the results are settling to their final position. Physical manipulation of the face — massage in particular — introduces unnecessary mechanical forces that can interfere with this process. Laser and heat-based treatments can affect the local tissue environment in ways that may alter how the toxin behaves.

After two weeks, once your results are fully established, these treatments can be safely resumed. Many clients combine anti-wrinkle injections with skin boosters, profhilo, or professional facials as part of an ongoing treatment plan — the key is sequencing them correctly. If in doubt, ask your practitioner at the time of your appointment: they will advise on the optimal order and timing for your specific combination of treatments.

When Do Anti-Wrinkle Injections Start Working?

One of the most common questions after leaving the clinic is: when will I see a difference?

The honest answer is that the results do not appear instantly. You will not notice the muscles relaxing on the treatment table, and the day after your injections, your face will likely look largely unchanged. This is completely normal.

The botulinum toxin works by blocking the signal between the nerve and the muscle — specifically by preventing the release of acetylcholine at the neuromuscular junction. This process takes time to develop. Most clients begin to notice the first signs of the treatment working at around days 3 to 5. You may notice that certain expressions require more effort, or that fine lines in the treated area look softer when your face is at rest.

The effect continues to develop and deepen over the following days. The full result is visible at around 10 to 14 days post-treatment. This is why the standard review appointment is scheduled at two weeks — not before, because the result has not yet fully settled, and not significantly after, because any top-up corrections need to be made while the original treatment is still active.

If you have not noticed any change by day 7, it can be tempting to worry that the treatment has not worked. In most cases, you simply need to wait a little longer — the timeline varies between individuals depending on metabolism, muscle mass, and the dose administered. Assess your result at day 14 before drawing any conclusions.

What If the Results Are Uneven or Not Enough?

It is not uncommon for results to settle unevenly in the first week or two. Because each side of the face is subtly different in terms of muscle strength, anatomy, and individual nerve response, one side may appear to relax slightly faster or to a slightly greater degree than the other during the settling phase.

Minor asymmetry in the first week is expected and almost always resolves as the treatment reaches its full effect at two weeks. Do not make any judgements about asymmetry before the 14-day mark.

If at your two-week review the results are still uneven, or if one area has not responded sufficiently to the dose administered, your practitioner may recommend a small top-up injection. This is a routine part of the treatment process and does not indicate anything went wrong — it is simply a refinement to ensure the final result meets your expectations. Top-up doses are typically much smaller than the original treatment.

If you feel the overall result is weaker than expected — for example, you can still see significant lines that you hoped would be smoother — discuss this honestly at your review appointment. Finding the right dose for each individual patient sometimes takes one or two treatment cycles.

How Long Do Anti-Wrinkle Injections Last?

The effects of botulinum toxin are temporary by design. The body gradually regenerates the nerve connections that the toxin blocked, restoring normal muscle movement over time. For most people, results last approximately 3 to 4 months, though this varies noticeably from person to person.

Several factors influence longevity:

Metabolism. People with faster metabolic rates tend to break down the toxin more quickly. This is also why younger patients and highly active individuals sometimes find their results last towards the shorter end of the range.

Muscle mass and movement. Areas with particularly strong muscles, or that are used frequently and expressively, may see results fade more quickly. This is especially relevant for the masseter (jaw clenching) treatment.

Dose administered. Higher doses generally produce longer-lasting results, though the appropriate dose is always balanced against achieving natural-looking movement. A practitioner who prioritises natural results may use a conservative dose, which may mean a slightly shorter duration.

Treatment frequency. Patients who maintain consistent treatment schedules every three to four months often find their results become more predictable over time. With regular treatment, the targeted muscles can become conditioned to remaining relaxed, and some patients find they require slightly less product to achieve the same result after several treatment cycles.

Sun exposure and skin condition. Significant UV damage and compromised skin health can affect how treatments behave and how visibly effective they are at the skin surface.

Making Results Last Longer

While you cannot dramatically extend the pharmacological duration of botulinum toxin, there are meaningful steps you can take to protect the quality and appearance of your results throughout the treatment cycle.

Consistent sun protection is the single most impactful habit. Repeated UV exposure breaks down collagen and elastin, making lines and wrinkles more entrenched at the skin surface — meaning the muscle-relaxing effect of your injections has more work to do. A broad-spectrum SPF 30 or 50 applied daily, year-round, is non-negotiable.

An evidence-based skincare routine between appointments actively supports the longevity of your results. Retinoids (vitamin A derivatives) stimulate collagen synthesis and accelerate cell turnover, improving skin texture. Peptides support the skin's structural proteins. Vitamin C provides antioxidant protection and brightening. Together, these ingredients mean your skin is in better condition between appointments — and better-conditioned skin shows the benefits of anti-wrinkle treatment more clearly.

Staying well hydrated and maintaining a balanced diet supports skin health generally, including the skin's capacity to regenerate and maintain elasticity.

Avoiding smoking is significant: smoking accelerates collagen breakdown and microvascular damage in the skin, counteracting many of the benefits of aesthetic treatments.

Booking your follow-up appointment before your results wear off completely — rather than waiting until the lines return to their original depth — allows for more consistent, cumulative improvements in skin quality over time.

If you have any concerns after your treatment, or if you would like to discuss your results at the two-week mark, the NexaSkinMed team is here to help. Ready to book your next appointment, or considering anti-wrinkle injections for the first time? Book online at nexaskinmed.co.uk/book and a member of our team will guide you through the process from consultation to aftercare.