Do men need a different Botox dose from women?
Often, yes. A 2024 review of the literature reports that men appear to need higher doses, and that for frown lines (the glabellar area) they often need double the standard dose given to women. An earlier review explains why: the glabellar muscles are among the larger ones treated, and men typically have greater glabellar muscle mass and need larger doses.
Muscle size varies between people of either sex, so "male" is a tendency and not a rule. The same review stresses that dose, number of points and placement are adjusted to the individual, and a validated Glabellar Muscle Mass Scale exists for exactly that purpose. The practical meaning is that a unit price quoted for a woman's plan does not carry over, and the cost article on what decides the fee explains why units and areas matter more than the headline.
What do trials say about botulinum toxin in men?
Less than you might expect. The authors of a 2022 post-hoc analysis of the men in one large trial wrote that comparator trial data in men are limited. That analysis had 25 men on one product and 31 on another, each given 20 units for frown lines, and the difference between products did not reach statistical significance.
So advice about men rests on reviews of anatomy and clinical practice more than on large trials. That is a reason to ask your doctor how they decided your dose, and to expect a review visit to adjust it.
What does Botox do for forehead and frown lines in men?
Frown lines between the brows and horizontal forehead lines are the two areas most people think of, and the muscle behaviour differs. The frown muscles pull the brow in and down, and the forehead muscle, the frontalis, lifts the brow. The 2024 review notes that the frontalis in men needs precise dose and placement, because too much can make the brow droop, and it notes that lines at the outer corner of the eye are often the first area men ask about.
The aim for most men is softer lines with expression intact. A flat, shiny forehead that does not move is usually what people mean when they say they can tell. The article on whether people can tell you have had Botox covers that, and Botox side effects covers brow heaviness and eyelid droop.
Can Botox slim or define a man's jaw?
It can reduce the bulk of the masseter, the chewing muscle at the angle of the jaw, which is why some people ask about it for a square or wide lower face or for teeth grinding. In an 80-adult trial from Korea, masseter thickness at clenching fell by 2.33 to 3.79 mm at 12 weeks across four doses, every dose beat placebo, and no significant adverse events were noted. About 31 percent of those adults were men, and the abstract does not report the results by sex.
The limits matter for a man. A strong jawline can be bone, not muscle, and treating a muscle that is giving the jaw its shape can leave the jaw looking narrower than intended. Chewing may feel weaker for a while, and a review notes lower-face use is off-label. The clinic's anti-wrinkle injections include the jaw, and masseter injections for jaw slimming and teeth grinding sets out the mechanism and evidence.
Does Botox help excessive sweating in men?
Yes, injections can reduce sweating, and this is a separate treatment from the wrinkle injections above. Two double-blind, placebo-controlled pivotal trials reviewed in 2023 found underarm sweat production and severity fell compared with placebo. The effect appeared within 1 week and lasted 6 months or more. The paper was funded by the maker of the product.
The injections go into the skin of the underarm, not into a muscle, and the doctor first checks that the sweating is excessive and not a sign of another condition. The clinic offers hyperhidrosis injections, and Botox for excessive sweating covers how they work, how long they last and what else helps. For smell rather than sweat, the body odour article separates the two.
What about looksmaxxing and AI face-score apps?
Looksmaxxing is the online trend of changing the face to look more attractive by the numbers, and some face-score apps give a rating from a photo. A 2026 analysis of social media found that "bonesmashing" alone had 2,518 mentions in 12 months and an estimated reach of 32 million, with about 98 percent of that content male, and the authors conclude that risky practices are being normalised with pseudoscientific language.
Wanting to look well is not a flaw, and nothing here is a judgement of anyone's face. The point is narrower: a score from a phone is not a medical finding. It changes with angle, light and lens, as the article on selfies and the nose shows, and no study read tested botulinum toxin against a score. A doctor treats a finding, such as an active frown muscle or a masseter that is driving the jaw shape, not a score. Nothing in this article promises that any injection changes how you look to an app or to anyone else.
Who should not have Botox?
The usual exclusions apply to men as to women: a neuromuscular condition such as myasthenia gravis, an infection in the area, an allergy to the product and some medicines, including certain antibiotics. Who should not have anti-wrinkle injections lists them. Anyone who has had a problem with a past injection, or who plays a wind instrument, speaks or sings for work, or lifts heavily, should say so, since chewing, lip and brow muscles all feature in those activities.
What should I ask at the first visit?
Ask which muscles are being treated and why, how many units go into each, and why that dose for your muscle size. Ask what the product is, whether it is registered, who injects, and what a review visit will check. Ask what the treatment will not change, so you are not expecting the injection to do the job of bone, fat or skin. Ask what happens if the brow feels heavy or the result is uneven.
Dr Ong performs injectables at this clinic. Does Botox hurt? The first appointment, step by step walks through the visit, and the anti-wrinkle injections page describes the treatment itself.
The honest complication
The studies of men are few, one source is a review of practice and not a trial, and the sweat paper was funded by the maker. The research on dose in men is thin, and no source read says what dose suits you. The only dependable method is examination: how your muscles move, where they sit, and how your face responds, with a review to adjust. A number from an app, a video or a friend is not part of that method.
