When discussing aesthetic changes that occur due to the natural aging process, one of the most common and noticeable are the nasolabial folds, also known as smile lines. These lines, which start at the edge of the nose and extend to the corners of the mouth, are often the first thing we notice when looking at older photos of ourselves or others. As the years pass, nasolabial folds become deeper, leading many to wonder how to soften or eliminate them. While some people accept aging as an inevitability, others turn to cosmetic procedures and treatments to preserve a youthful appearance for as long as possible.
One interesting (and somewhat humorous) question regarding nasolabial folds is: “Should we smile less to slow their formation?” However, smiling is synonymous with joy and quality of life, so let’s explore why nasolabial folds occur, how we can mitigate them, and why we should never let them stop us from expressing genuine emotions.

What are Nasolabial Folds and Why Do They Occur?
Nasolabial folds are those pronounced lines that form from the edge of the nostrils to the corners of the mouth. Every person has facial creases along which the skin folds when smiling or speaking. In young individuals, these may be almost unnoticeable because the skin is elastic, muscles are well-distributed, and fat pads provide fullness to the face. However, over time, several processes occur:
- Loss of Collagen and Elastin: As we age, the production of collagen (which provides firmness to the skin) and elastin (which allows for skin elasticity) declines. The skin becomes thinner and less resilient to stretching caused by facial expressions.
- Reduction in Facial Fat Pads: The fat located in the cheeks and under the skin gradually shifts or diminishes, making the cheeks look hollow. This creates a sharper transition between the cheeks and the nasolabial folds.
- Changes in Bone Structure: The bones of the face also change over the years, losing some of their volume. Consequently, support for the face weakens, and folds become more noticeable.
- Genetic Factors and Lifestyle: Some may be genetically predisposed to develop deeper nasolabial folds earlier, while lifestyle factors (diet, significant fluctuations in body weight, smoking, sun exposure, improper care of dry and dehydrated skin, stress) further influence the acceleration or deceleration of this process.
The result? A common and entirely natural occurrence of indented lines or pronounced ‘grooves’ between the nose and mouth, which become more visible when smiling and even when the face is in a neutral expression.
Should We Stop Smiling?
We often hear the claim that nasolabial folds are the result of constant smiling or laughter. The logic behind this is that during laughter, the face moves dynamically, muscles contract, and the skin repeatedly follows these expressions. Ultimately, it’s inevitable that these lines will become more defined with age. However, consider the following points:
- Wrinkles caused by smiling are part of natural expressions: Like the laugh lines around the eyes (‘crow’s feet’), nasolabial folds that occur due to smiling are often seen as ‘positive’ wrinkles, a sign of cheerfulness and communicativeness.
- Not laughter, but aging: The primary cause lies in the loss of volume and the relaxation of supporting structures, not solely in smiling. Smiling merely accentuates these lines, but it is not the main culprit for their formation.
- Quality of life: Laughter is beneficial for psychophysical health. Many studies show that laughter reduces stress, boosts mood, and improves immunity. Avoiding laughter to prevent wrinkles would be an entirely wrong choice.
In other words, despite the fact that constant muscle contractions contribute to the visibility of nasolabial folds, we certainly do not want to sacrifice laughter and genuine joy just to avoid wrinkles. Wrinkles are, after all, an inevitable part of life, and laughter helps make that life more fulfilling.
What Treatments Are Available to Mitigate Nasolabial Folds?
If, for aesthetic or psychological reasons, you feel uncomfortable about pronounced nasolabial folds, the good news is that there are several options that modern aesthetic medicine offers:
- Hyaluronic Acid Fillers The most common and popular method for alleviating nasolabial folds is the injection of hyaluronic fillers. Hyaluronic acid is a natural substance that binds water in the skin, giving it fullness and hydration. When this creased space is filled with hyaluronic acid, the skin is ‘lifted’ and wrinkles are smoothed out. The result is immediate and lasts from 6 to 12 months, depending on the type of filler, the depth of the wrinkles, and the individual’s metabolic rate.
- Botox (Botulinum Toxin) Although more commonly used for expressive wrinkles on the forehead or around the eyes, Botox can sometimes help reduce the tension of certain muscles that pull the face downward. This reduces the prominence of the lines, but its application to nasolabial folds is limited, as they are mainly the result of volume loss, not solely muscle contraction. Therefore, Botox is often combined with fillers or other procedures.
- Laser Treatments and Chemical Peels Treatments that stimulate skin regeneration, such as fractional lasers or medium-depth chemical peels, can improve the skin texture around nasolabial folds, but they usually do not provide enough volume to fully correct them. However, as an addition to other treatments, laser peeling can contribute to a more even skin tone and better skin quality.
- Mesotherapy and PRP For a comprehensive improvement of skin quality, mesotherapy (injecting vitamin cocktails and hyaluronic acid into the shallower layer of the dermis) or PRP (platelet-rich plasma injections) can provide mild tightening and refresh the face. However, for deep nasolabial folds, these methods are usually not sufficient as the sole solution but serve as a complement.
- Surgical Methods In cases of serious facial sagging, where fat pads have ‘slipped’ and wrinkles become very deep, the possibility of a facelift or mid-facelift procedure is considered. However, this is an invasive procedure that requires a longer recovery time and is generally reserved for a more mature age when conservative treatment (like fillers) is insufficient.
Are Nasolabial Folds Really That ‘Bad’?
From an aesthetic perspective, people with very deep nasolabial folds often feel they look tired, stern, or older. However, there’s also the viewpoint that nasolabial folds convey a special life story—they speak of years filled with laughter, smiles, and lived experiences.
Fundamentally, nasolabial folds are a sign that the face is moving, that it’s alive. If, despite everything, the deep lines around your mouth make you unhappy, modern aesthetic procedures can help you regain the smoothness and complexion you desire, without having to sacrifice genuine laughter and a sense of joy.
It is important, however, to have realistic expectations and to trust an experienced professional who will choose the optimal combination of procedures and skincare advice. This will achieve a balanced, natural, and satisfying appearance without having to give up the most beautiful expression of your face—the genuine smile.
How to Care for the Skin to Slow the Formation of Nasolabial Folds?
Even if you opt for one of the available treatments, there’s no doubt that regular and quality skincare can delay the onset of deeper lines. Some key recommendations include:
- Using SPF creams: UV rays accelerate skin aging and lead to collagen loss, so sun protection is of utmost importance in any anti-aging routine.
- Hydration: Skin that is well-hydrated better retains its elasticity. Serums and creams with hyaluronic acid or ceramides can strengthen the skin’s barrier.
- Healthy lifestyle habits: A diet rich in antioxidants and proteins, sufficient water intake, ample sleep, and avoiding cigarettes. Smoking, for instance, not only reduces oxygen flow to the skin but also dries it out due to decreased circulation and an increase in free radicals.
- Gentle exfoliation and facial massage: Exfoliating removes dead cells and stimulates renewal, while massage improves circulation and lymph drainage. Both techniques can contribute to better skin quality and tone.