Stretch Marks

Quick facts

Stretch marks are caused by abnormal collagen formation when skin is rapidly stretched from sudden growth or rapid weight gain. Various treatment options are available for stretch mark removal, but each option will differ according to a patient’s skin type, skin tone and their desired results.

  • Stretch marks are a difficult condition to treat, and therefore a multi-modal approach is best for effective treatment

  • You can achieve up to 80% improvement with the use of Vaser Skin Tightening or a laser treatment such as Fractional Laser

  • For modest improvements with less downtime,  Dermapen (micro-needling) with Platelet Rich Plasma (PRP) may be a suitable option

  • Starting costs vary depending on treatment: from $660 – $4,400

  • In severe instances of stretch marks,  the most suitable option may be to surgically remove the skin via a Tummy TuckArm Lift or Thigh Lift

  • *Disclaimer – results may vary from patient to patient

Various treatment options available

Costs start from $660 - $4,400


Before and after

Stretch Marks

Treatment Options

Treating stretch marks has always been a very difficult task. At Cosmos Clinic, we use four modalities to treat stretch marks. These stretch mark treatments have resulted in significant improvements in the appearance of stretch marks. Most often they are used in conjunction with each other; and this refers to the multi-modal approach.


Non-Surgical Treatments

  • Dermapen with Platelet Rich Plasma (PRP): Also known as skin needling, this treatment stimulates new tissue formation through the use of micro-fine needles. With this procedure, microscopic holes are made into the dermis, which stimulates the production of new collagen in skin cells, as well as new cell growth. The skin remains intact and is not damaged, therefore promoting constructive regeneration. This treatment is most often used in combination with PRP. For this treatment option, you will generally need 2-3 treatments spaced 1-2 months apart to achieve the best possible results


Minimally Invasive Surgical Treatments

  • Vaser Skin Tightening: Another emerging treatment for improving stretch marks is by using Vaser Skin Tightening. Although this technology was originally designed to tighten the skin, recent trials have shown promising results for reducing the appearance of stretch marks. At Cosmos Clinic, we use Vaser to improve stretch marks on many of our patients who have poor quality skin with great results!
    A Vaser Probe is passed under the skin to heat up collagen fibres, inducing the formation of new collagen. The formation of new collagen helps the skin to contract
  • Fractional Laser: One of the most exciting applications of Fractional Lasers is for striae (also known as stretch marks). A recent pilot study of 20 patients showed significant improvement in the appearance and texture of mature, white striae (or old stretch marks) after 3 treatments were performed on moderate settings. Redness in the treated areas does seem to persist a little longer on the body than in the face, however this fades in time during recovery.
  • Harvest Platelet Rich Plasma (PRP):  is blood plasma that contains a high concentration of platelets which activate collagen production in the skin. At the start of this treatment, we take a small amount of your blood, put it in a test tube and then spin it in a centrifuge. As your red and white cells fall to the bottom the platelets contained in your blood rise to the top in the form of a golden liquid. This substance (that is referred to as PRP) is your plasma which is made up of platelets that are rich in growth factors. When these growth factors are injected under the skin, they stimulate the stem cells which induces collagen formation, thereby tightening the skin.


These minimally invasive options provide up to 85% improvement and usually only need one treatment for marked improvement in your stretch marks on the affected areas.


Stretch Marks treatment prices vary depending on your overall situation, expectations and treatment option selected.  As a guide:

  • PRP + Dermapen combo or Fractional Laser prices start from $750
  • Vaser Skin Tightening with PRP and Fractional Laser prices starts from $4,400
  • Initial consultation is between $120 - $220


  • What are stretch marks?
    • Medically known by the names of striae distensae, SD, striae, striae atrophicans and striae gravidarum, stretch marks are defined as dermal scars or lesions on the outermost layer of the skin. They present themselves as pink, red or purple lines (indented streaks) often on the hips, abdomen, breasts, upper arms, thighs or buttocks. Over time stretch marks tend to flatten and fade to translucent white or grey pale marks.

      While both men and women are affected by stretch marks, around 70 percent of adolescent girls develop the condition during puberty compared to 40 percent of boys. Those at higher risk of developing stretch marks include:

      • Adolescents during growth spurts or hormonal changes
      • Pregnant women
      • Body-builders
      • Obese or overweight people
  • What causes stretch marks?
    • Stretch marks are formed is the areas of the body where the skin is subjected to continuous stretching. The skin is divided into three main layers: the subcutaneous or hypodermis (deepest layer), dermis (middle layer) and the epidermis (the outer layer).
      Stretch marks are formed within the dermis.

      The rapid stretching of the connective tissue due to sudden growth or weight gain damages the dermal tissue atrophy and causes thinning of the outer layer. This allows the deeper skin layers to be revealed, forming the unsightly streaks along the surface.

      When the body grows, the connecting fibres of the dermis naturally stretch slowly. However with rapid growth, these fibres are overstretched and tear. This inflammatory reaction within the skin is the responsible for the stretch mark’s red or purple tone (new stretch marks). When viewed under a microscope, the tissue affected by stretch marks resembles that of a scar due to the changes in the collagen fibre’s appearance.

  • Why is it so difficult to treat stretch marks?
    • The truth is that we don’t know what exactly causes stretch marks. The theories include genetic factors, increased levels of body steroids, and mechanical effects like pregnancy, obesity and weight lifting. When we look under a microscope stretch marks look like a scar. Therefore, the best way is to treat scars is with a multi-modal approach, and so we apply the same treatment plan to stretch marks.

  • What topical treatments for stretch marks are available?
    • Several other treatment methods that help mildly improve the appearance of stretch marks:

      • Vitamin A helps improve stretch marks when they are red
      • Trofolastin cream (centella asiatica extract) has been shown to help prevent stretch marks in pregnant women
      • Verum (Vitamin E, panthenol, elastin and methanol) has also been shown to help prevent stretch marks during pregnancy

      It is worth noting that once stretch marks have formed, they need to be treated with procedures tailored for stretch marks.

  • How soon after pregnancy should I wait before treating my stretch marks?
    • We advise the treatment combination (of PRP with Dermapen) two months after delivery.

      The use of Laser Skin Tightening with PRP and Fractional Laser is advised after 6 months.

      It is important to be note that the sooner the stretch marks are treated after pregnancy the more likely they are to respond to the treatment.

  • When should I consider surgical excision of stretch marks?
    • If you have loose skin and want a complete removal of stretch marks, you will need to cut out the skin with a Tummy Tuck or Arm Lift.


  • How do I know which treatment option is best for me?
    • It is important to determine what type of results you are looking for and to have realistic expectations. A consultation is recommended to discuss all your questions and concerns and to establish which treatment option will suit you best.

  • Which clinics can I undertake Stretch Mark reduction?
    • Your initial Stretch Marks reduction consultation and subsequent procedure can be undertaken at one of our cosmetic clinics in Australia (either in Sydney, Canberra, Adelaide or the Gold Coast).

Sydney. is your closest Cosmos Clinic, based on your IP.

Opening hours:

Monday - Saturday: 8:30am-5:30pm


10 Henrietta Street, Double Bay NSW 2028


1300 138 797


Cosmopolitan Centre: 22 Knox Street, Double Bay

1-13 Cross Street, Double Bay

2P parking available in surrounding area

Adelaide. is your closest Cosmos Clinic, based on your IP.

Opening hours:

Mon: 9am-5pm. Tue: 10am-6pm. Wed-Fri: 9am-5pm


163 Archer St, North Adelaide, SA, 5006

Canberra. is your closest Cosmos Clinic, based on your IP.

Opening hours:

Monday - Friday: 9am-5:30pm, Saturday: By Appointment


Suite 1, Ground Floor, Equinox 2, 70 Kent St, Deakin ACT 2600

Gold Coast. is your closest Cosmos Clinic, based on your IP.

Opening hours:

Monday - Friday: 9am-5pm


220 Ashmore Road, Benowa QLD 4217