Smoker’s lines are the small vertical wrinkles that form on and around the lips, radiating outward from the lip border. While they get their name from the repeated pursing motion of smoking a cigarette, you don’t have to be a smoker to develop them. These fine lines are one of the earliest visible signs of aging in the lower face, and they tend to deepen over time without intervention.
What Causes Smoker’s Lines
The wrinkles form because of repeated contraction of the circular muscle that surrounds your mouth. Every time you purse your lips, whether to smoke, sip through a straw, whistle, or even talk expressively, that muscle creases the overlying skin. When you’re young, the skin bounces back. As collagen and elastin break down with age, those creases start to stick around permanently.
Smoking accelerates this process in two ways. First, the physical act of drawing on a cigarette creates the exact pursing motion that etches these lines into the skin. Second, tobacco smoke directly damages the skin’s support structure. Research comparing smokers to non-smokers has found that smokers have fewer collagen and elastin fibers in the deeper layers of skin, making it slacker, harder, and less elastic. Smoking also reduces blood flow to the skin and damages the outermost barrier layer, increasing water loss and leaving skin chronically dehydrated. All of this means smokers tend to develop deeper, more noticeable lines years earlier than non-smokers.
But smoking is far from the only cause. Sun damage is a major contributor, breaking down the same collagen and elastin fibers that keep skin smooth. Genetics play a role too: if your parents or grandparents had pronounced lip lines, you’re more likely to develop them. Habitual straw use, frequent lip pursing, and even sleeping positions that compress the face can contribute over time.
How They Differ From Other Facial Wrinkles
Smoker’s lines are distinctive because they run vertically, perpendicular to the lip border. This sets them apart from the deeper “marionette lines” that run downward from the corners of the mouth, or the “nasolabial folds” that bracket the nose and upper lip. They also tend to be finer and shallower, at least initially, which is why they’re sometimes called “lipstick lines” (lipstick bleeds into them, feathering outward).
These lines typically appear first on the upper lip, where the skin is thinner and has fewer oil glands. Over time, they can extend to the lower lip and become deep enough to be visible even when your face is completely relaxed.
Topical Treatments That Help
For mild smoker’s lines, consistent use of targeted skincare products can soften their appearance. Retinol (a form of vitamin A) is the most well-supported ingredient for this purpose. It stimulates collagen production and speeds skin cell turnover, gradually thickening the skin around the lips and reducing the visibility of fine lines. Because the skin around the mouth is thinner and more sensitive than the rest of the face, look for formulations specifically designed for the lip area, which pair retinol with hydrating ingredients like hyaluronic acid and peptides to minimize irritation.
Sunscreen is equally important, though often overlooked on the lip area. A lip balm with SPF 30 or higher prevents further UV-driven collagen breakdown. Vitamin C serums can also help by neutralizing free radical damage and supporting collagen synthesis, though they work best as a preventive measure rather than a fix for established wrinkles.
Injectable Options
When topical products aren’t enough, injectable treatments offer more dramatic results. The two main categories work in different ways.
Dermal Fillers
Hyaluronic acid fillers are the most common treatment for smoker’s lines. A practitioner injects small amounts of a soft, low-viscosity gel directly into the vertical lines and along the lip border. This physically plumps the creased skin from underneath, smoothing the surface. Results are immediate and typically last several months, though the exact duration varies by product and placement. The procedure takes about 15 to 30 minutes, and swelling or bruising around the mouth is common for a few days afterward.
Muscle Relaxants
Botulinum toxin injections (commonly known by brand names like Botox) work differently. Instead of filling the wrinkle, they relax the muscle that creates it. Very small doses are placed into the muscle surrounding the mouth to reduce the pursing motion that deepens the lines. The tricky part is that this muscle controls essential functions like eating, drinking, and speaking. Overtreatment can temporarily affect your ability to pucker, use a straw, or even pronounce certain sounds clearly. For this reason, practitioners use very conservative doses around the mouth compared to other areas of the face.
Laser and Energy-Based Treatments
Fractional CO2 laser resurfacing is one of the more effective options for moderate to deep smoker’s lines. The laser creates tiny channels of controlled damage in the skin, triggering the body’s wound-healing response and stimulating new collagen production. Clinical studies of fractional CO2 laser treatments show significant reductions in both average and maximum wrinkle depth, with improvements continuing to develop over two to three months after treatment.
Recovery involves several days of redness, swelling, and peeling around the treated area. Strict sun protection is essential afterward, typically including ice compresses immediately following the procedure and diligent sunscreen use for weeks. Most people need one to three sessions spaced several weeks apart for optimal results, and the improvements can last a year or more depending on skin type and sun exposure habits.
Skin Boosters and Biostimulators
A newer category of treatment involves injectable “skin boosters” that improve skin quality from within rather than filling individual wrinkles. Polynucleotides, one of the more recent options in this category, are injected in tiny amounts across the lip and surrounding area to stimulate the skin’s own repair and hydration processes. A typical protocol involves three sessions spaced four weeks apart, with small volumes injected at multiple points across the treatment area using very fine needles.
A multicenter study evaluating polynucleotides for lip rejuvenation found significant improvements in wrinkle severity and surface roughness after three treatments, with most side effects being mild and short-lived. These treatments work best for early to moderate lines and are often combined with fillers or laser treatments for more advanced wrinkling.
Prevention Makes the Biggest Difference
The single most effective thing you can do to prevent smoker’s lines is to not smoke, or to quit if you currently do. The combination of repetitive pursing and direct chemical damage to skin collagen makes smoking uniquely destructive to the lip area. Beyond that, daily SPF protection on and around the lips slows UV-related collagen loss considerably. Reducing straw use, staying hydrated, and starting a retinol product before lines become deeply etched all help keep the skin around your mouth smoother for longer. Once deep lines are established, they rarely disappear completely, but the right combination of at-home care and professional treatments can make a meaningful difference in how visible they are.