Anti-aging wrinkles treatments types and causes

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Types and Causes of Aging Wrinkles (Rhytids)

When the skin ages and is exposed to harmful external environments, the wear and tear of life begins to show on your face. While there are many steps you can take to delay the appearance of these signs of aging, the best way to prevent them is to understand their causes.

Types of Rhytids

  1. Glabella lines

    These lines are the vertical marks that appear on the forehead between the eyebrows. Glabella lines are caused by the contraction of muscles between the brows that occurs when we make expressions such as frowns. With the repetition of these facial movements, the lines become more permanent. These are typically the first lines that start to show, and can appear on many individuals as early as their mid-20s.

  2. Lip lines

    Facial lines around the lips and mouth are mostly attributed to the process of aging; however, there are many factors that contribute to these wrinkles, making them appear earlier or making them deeper and more noticeable. These factors include sun exposure and smoking due to the increased movement in the muscles around the mouth. That is why the vertical lines around the lips are often referred to as ‘smoker’s lines.’

  3. Under eyes

    In addition to age, the horizontal lines and wrinkles that appear under the eyes can be caused by smoking, sun damage, muscle movements caused by smiling and squinting, and even the way you sleep. The wrinkles in this area are commonly uneven, with one side showing more lines than the other. This can be attributed to both the way you smile and the way you sleep, if one side is more contracted when you smile and if you sleep more often on one side than the other.

  4. Crow’s feet

    These lines that run from the corners of the eyes outward are some of the most common wrinkles and the earliest to form. They are caused by the repetition of certain face movements and appear when you smile or squint.

  5. Worry lines

    Forehead wrinkles, sometimes referred to as worry lines, or even more generally as expression lines, are the horizontal lines that appear across the forehead. As these alternative names suggest, these wrinkles are primarily caused by the expressions we make such as frowns or other expressions of worry. These once temporary lines that appear when we make the aforementioned expressions become permanent as the skin ages.

  6. Marionette lines

    Marionette lines are another kind of crease that appears around the mouth. They appear at the corner of the mouth and run down the chin and start to appear as the skin loses collagen due to age and harmful environmental factors.

  7. Nasolabial folds

    These folds in the skin are the creases that appear from the edges of the nose that run down to the sides of the mouth. They are sometimes referred to as “smile lines,” as they appear when we make this expression. As the skin ages and begins to sag, particularly as the cheeks begin to sag downward, these creases deepen and become permanent.

  8. Tear troughs

    Tear trough deformity is what we generally refer to as the bags under the eyes. Though it looks simply to be a discoloration of the skin, it is actually caused by skin and muscle tissue laxity, which becomes more of an issue with age or through a lifestyle that causes the skin to age prematurely.

  9. Mental crease

    Also referred to as a labiomental crease or groove, this facial fold is the horizontal line that appears between the lower lip and the chin. Its appearance is due to a combination of muscle contractions caused by movements such as pouting, as well as the process of aging.

  10. Neck

    Lines that appear on the neck are affected greatly by gravity and the loss of volume and muscle support caused by aging. Horizontal lines can also show up due to repeated movements, for instance if you look down a lot at your phone.

  11. Deflated or sagging brows

    Also known as brow ptosis, is caused by a combination of the skin losing elasticity due to aging, in addition to the repeated contractions of the muscles underneath the brow. The eyebrows are a very expressive feature of the face, and this area becomes particularly saggy as the deep fatty layers of the skin deplete with age.

  12. Hollow temples

    Sunken or hollow temples are caused primarily by aging. Along with loss of elasticity, aging also causes loss of fat and tissue volume, which can lead to gauntness or sunken areas of the face.

  13. Pitted scars

    Pit scars are those marks on the skin that appear as small, sunken holes. A big cause of these scars is cystic acne, as the cysts that form are deep set at the bottom layers of skin, leaving a bit of a gap when they scar. This combined with thin skin—which can be caused either by genetics or by the loss of collagen due to age—causes the scarring.


Hyaluronic acid:

Hyaluronic acid helps the skin retain moisture, but as we age the production of this hydration substance slows. By re-introducing hyaluronic acid into aged, dry, or sagging skin, plumpness and volume are restored, leading to smooth, wrinkle-free skin. Many popular dermal fillers contain hyaluronic acid as their primarily ingredient.

Botulinum toxin:

Botulinum toxin blocks neurotransmitters that signal muscles to contract, causing paralysis. By injecting this substance into the dermis, the muscle contractions that cause lines and wrinkles to appear in the skin when we make expressions, no longer contract. Therefore, the lines do not appear. Botulinum toxin is the main ingredient in Botox and works as a treatment to help wrinkles look less prominent but is suitable as well as a preventative treatment.


Thread lifts:

Thread lifts is essentially a non-surgical facelift and helps to tread wrinkles and folds by lifting and tightening sagging skin using absorbable sutures threaded through the skin.


Chemical Peels:

Chemical peels can help treat fine lines and early signs of aging. They work by peeling off the superficial layer of skin cells, revealing the new, healthier cells beneath. These cells appear smoother and less wrinkled, though this option is less effective on more severe wrinkles.


The best way to treat wrinkles is to prevent them from appearing in the first place. While we’re not able to prevent ourselves from aging, we are able to take good care of our skin by protecting it from harmful external factors and nurturing the cellular activity that keeps skin plump and firm. Protect your skin from sun exposure by applying SPF30+ sunscreen, avoid smoking, and feed your body what it needs to keep your skin functioning optimally and producing the collagen it needs to keep looking youthful and radiant.

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Disclaimer: These articles, and any views and opinions expressed, are not endorsed by Raskel Medical. The articles are strictly for informational purposes and should not be considered medical advice. Raskel Medical does not check or edit the content of these articles for medical accuracy. Contact your medical practitioner for any medical advice needed.