DAO Botox: Lift Downturned Mouth Corners Safely and Subtly in Manchester

If the corners of your mouth naturally pull down, you may feel you look tired, stern or “sad” even when you’re perfectly content. This expression is often driven by overactivity of a small pair of muscles called the depressor anguli oris (DAO). Precisely placed anti-wrinkle injections (commonly known as Botox®) can relax these muscles, allowing the mouth corners to rest in a more neutral or slightly lifted position. At our Botox clinic in Manchester, we perform DAO treatments as a refined, low-downtime option to refresh the lower face without altering your natural character.

We explain what DAO Botox is, who it’s suitable for, how treatment works, what results to expect, and the risks to be aware of—written in plain English with the essential medical detail you’d expect from an experienced plastic surgery-led clinic.

What is the DAO muscle?

The DAO (depressor anguli oris) is a triangular muscle on each side of the lower face. It arises from the lower jaw (mandible) and inserts into the corner of the mouth (oral commissure). Its main job is to pull the mouth corner downwards, working in concert with other lower-face depressor muscles (like depressor labii inferioris and parts of the platysma).

When the DAO is comparatively stronger than the upper lip elevators and zygomatic muscles (the ones that lift and smile), you may see persistent downturning at rest. With age, volume loss in the chin and jawline, skin laxity and repeated expressions can accentuate this. The visual effect is the classic “sad mouth” and, over time, marionette lines (creases from the corners down towards the chin).

What is DAO Botox?

DAO Botox involves micro-doses of botulinum toxin type A injected into the DAO on each side to reduce its pull. By easing the downward force, the mouth corners are no longer dragged south, so the face looks softer, less stern and more approachable. It’s a quick, minimally invasive procedure with no cutting, no stitches and no significant downtime.

Botulinum toxin temporarily interferes with acetylcholine release at the neuromuscular junction, weakening the targeted muscle for 3–4 months on average. In the DAO, we aim for selective relaxation, not a frozen look. Precise placement and conservative dosing are the keys to natural results.

Who is a good candidate?

You might be suitable for DAO Botox if you:

• Notice downturned mouth corners at rest that make you look sad or cross.

• See early marionette lines but aren’t ready for surgery or dermal fillers alone.

• Want a subtle lift to the mouth corners without changing your fundamental smile.

• Have good general health, realistic expectations and understand the temporary nature of toxin treatments.

Caution/relative contraindications include:

• Pregnancy or breastfeeding (we avoid elective toxin treatments).

• Active infection or skin irritation at injection sites.

• Certain neuromuscular conditions (e.g., myasthenia gravis).

• Known allergy to any component of the product.

• Significant lower-face laxity or deep volume loss that might be better addressed with fillers, threads, skin tightening or surgery—or in combination.

Why choose our doctor-led Botox clinic in Manchester?

DAO treatment sits at the intersection of fine anatomy and facial aesthetics. Small placement errors can affect smile mechanics, lip competence or speech. At our Manchester clinic, injections are performed by experienced medical professionals with deep knowledge of facial musculature and balanced smile dynamics. You get:

• Individual assessment of your smile, lip mobility, dental show and chin support.

• A conservative, step-wise dosing plan to keep results natural.

• Honest advice on adjunct treatments (e.g., mentalis or marionette fillers) to achieve the best overall outcome.

• Aftercare and review built into your plan, so we can fine-tune if needed.

Treatment goals and what results to expect

The goal is softening of the downward pull, giving a neutral to slightly elevated oral commissure. Expect:

• Subtle lift at the corners rather than a dramatic “pout” or stretched look.

• Improvement in a perennially stern or sad expression.

• Secondary softening of the early marionette fold as downward tension eases.

Onset is gradual: a light effect from day 3–5, with peak results around 10–14 days. Most people enjoy results for 3–4 months; some get longer, some a little less, depending on metabolism, dose and muscle strength. Many patients choose quarterly maintenance to keep the look steady.

What happens during consultation?

1. Medical history & goals – We discuss your concerns, medical background, and any prior injectables.

2. Dynamic assessment – We watch your resting face and expressions (smile, talk, frown), feel for muscle bulk, and assess lip competence, mentalis activity (chin dimpling), and platysma pull.

3. Plan & expectations – We outline if DAO Botox alone will suffice or whether to combine with fillers for marionette shadows or mentalis toxin for chin puckering.

4. Informed consent – We cover benefits, limitations, and risks.

5. Photography – Standardised images for your records and to track results.

How DAO injections are performed

• We cleanse the skin and mark the safe injection zone—usually over the DAO belly, lateral to midline structures and superficial enough to target DAO while avoiding deeper lip depressors.

• Most people don’t need numbing; injections feel like tiny pinpricks and take 5–10 minutes.

• We use micro-doses spread across one or two points per side to achieve even relaxation.

• You can return to normal activities immediately, avoiding heavy exercise, heat exposure or facial massages for the rest of the day.

Important: DAO dosing must avoid diffusion into the depressor labii inferioris (DLI), which helps lower and evert the lower lip. Inadvertent DLI weakening can cause lower-lip asymmetry or difficulty showing lower teeth. Experienced placement keeps this risk low.

Typical dosing and personalisation

Because anatomy and muscle strength vary, dosing is individualised. Many clinicians use small, conservative units per side initially, then review at two weeks for a top-up if needed. People with stronger DAO activity or heavier lower-face tissues may need slightly higher total doses to achieve a balanced effect. The art lies in treating enough to soften the downturn while preserving natural expression.

Combining DAO Botox with other treatments

DAO treatment often works best as part of a lower-face harmony plan:

• Marionette line fillers (hyaluronic acid) to correct shadows once downward pull is reduced.

• Mentalis Botox to relax chin dimpling and reduce upward chin contraction that can worsen marionette folds.

• Chin and prejowl contouring with filler to support the mouth corners and improve jawline definition.

• Lower-face skin tightening (e.g., radiofrequency microneedling) for mild laxity.

• Nefertiti lift (platysma toxin) in selected cases where neck bands pull the jawline down, always with caution to maintain functional strength.

A staged approach is often optimal: DAO first, review at 2 weeks, then add filler or skin treatments once the new muscular balance is established. This sequencing helps us use less product more precisely.

Safety, side effects and downtime

DAO Botox is well-tolerated. Common, short-lived effects include:

• Pinpoint redness or swelling at the injection site (minutes to hours).

• Mild tenderness or a small bruise.

• A brief feeling of asymmetry as the toxin takes effect (resolves as both sides settle).

Uncommon but important risks:

• Smile or lip asymmetry if toxin affects adjacent muscles like the DLI. Usually temporary, improving as the toxin wears off.

• Feeling the lower lip is weaker when trying to depress or evert it.

• Less commonly, dysarthria (subtle speech change) or drooling if diffusion is excessive—again, temporary.

Choosing a skilled medical injector and using conservative doses drastically reduces these risks. If a minor imbalance occurs, it can sometimes be balanced with small adjustments rather than waiting it out.

Aftercare in brief

• Avoid rubbing or massaging the area for the rest of the day.

• Skip saunas, hot yoga, and strenuous exercise for 24 hours.

• Stay upright for 3–4 hours after treatment.

• Make gentle expressions, but don’t “overwork” the area deliberately—there’s no evidence it helps uptake.

• Review with us at two weeks to check symmetry and fine-tune if needed.

How long does it last?

Most patients enjoy a smoother, softer mouth corner position for 3–4 months. First-timers sometimes metabolise a little faster initially. With consistent maintenance at our CLNQ Manchester Botox clinic, we can keep your lower face looking naturally positive all year round.

DAO Botox vs dermal fillers vs surgery

• DAO Botox relaxes downward pull—great for expression-driven downturn with relatively early marionette changes.

• Dermal fillers rebuild volume and support, softening folds and lifting the corners structurally.

• Threads or skin tightening can modestly redrape mild laxity.

• Surgical options (e.g., corner lip lift, facelift/mini-lift) address significant laxity, descent or deep folds and provide longer-lasting change.

Often, a blend of DAO Botox plus carefully placed filler gives the best non-surgical outcome.

Your next step

If downturned corners are making you look more serious than you feel, a precise DAO treatment may be the smallest change that makes the biggest difference. Book a consultation at our Botox clinic in Manchester to assess your smile dynamics and design a plan that keeps you looking like you—just fresher.

Frequently Asked Questions about DAO Botox

Will DAO Botox change my smile?

The aim is to soften the downward pull without flattening your smile. With skilled placement and conservative dosing, your smile should look more relaxed, not frozen. A short review at two weeks lets us fine-tune if needed.

How many units do I need?

It varies. We tailor dose to muscle strength and facial balance. Many patients start with small, conservative amounts per side and adjust at review for a natural result.

Is DAO Botox painful?

Most people describe brief pinpricks. The procedure is very quick and usually doesn’t require numbing.

How soon will I see results?

Expect early changes by day 3–5, with peak effect at 10–14 days.

How long do results last?

Typically 3–4 months. Regular maintenance helps keep results consistent.

What are the risks?

Minor redness or bruising is the most common. Less commonly, lip asymmetry or temporary lower-lip weakness can occur if adjacent muscles are affected. Choosing an experienced injector minimises these risks.

Can DAO Botox be combined with filler?

Yes. It’s often ideal to combine DAO Botox with marionette line or chin filler for comprehensive lower-face rejuvenation.

Who should avoid treatment?

We avoid Botox in pregnancy and breastfeeding, active skin infection, and certain neuromuscular disorders. We’ll review your medical history to keep you safe.

Will people be able to tell?

Most patients get comments like “You look rested” rather than “What have you done?”. The change is subtle and natural.

What if I don’t like the result?

Botulinum toxin wears off gradually. Minor imbalances can sometimes be adjusted; otherwise, effects fade over several weeks.

Ready to feel more like yourself?

Book a consultation at our Botox clinic in Manchester or our Cheshire site to discuss whether DAO Botox is the right choice for you. We’ll tailor a plan to your unique anatomy and goals so you look calm, kind and confident—without anyone pinpointing why.