CO2 laser to rejuvenate the skin and its (possible) use to treat alopecia
The Laser technology The field of dermatology is revolutionizing, offering solutions that "were believed unattainable"* in skin care.
Thanks to scientific advances, these treatments have evolved, becoming safer and more effective.
One of the most used and supported methods by specialists around the world ** is the CO laser2 fractional, a technique that, both in the laboratory and In vivo, has shown to be effective for facial rejuvenation.
THE LASER CO2 It is today one reliable option for mitigate or eliminate signs that reveal the passage of time: spots, eye bags, wrinkles ...
(In it Post We include some images of the before and after treatment, so you can see what we are talking about).
And its popularity continues to increase. So we wanted to investigate this matter, and then we summarize what we have discovered.
In addition, given the surprising potential of this laser technique to revitalize The complexion, we have asked ourselves:
Could it be used on the skin of the head - that is, the scalp - to make the hair grow again?
We check it!
*Haykal, D., Cartier, H., Goldberg, D., & Gold, M. (2024). Advancements in Laser Technologies for Skin Rejuvenation: A Comprehensive Review of Efficacy and Safety (Advances in laser technologies for skin rejuvenation: an exhaustive review of efficacy and safety). Journal of Cosmetic Dermatology, 23 (10), 3078-3089. https://onlinelibrary.wiley.com/doi/full/10.1111/jocd.16514.
** Levy, T., Lerman, I., Waibel, J., Gauglitz, G. G., Clementoni, M. T., Friedmann, D. P., ... & Artzi, O. (2025). EXPERT CONSISUS ON CLINICAL RECOMMENDATIONS FOR FRACTIONAL FACTIONAL CO2 LASER, IN FACIAL SKIN REJUVENATION TREATMENT (Consensus of experts on clinical recommendations for the ablative co2 laser fractional in the treatment of the rejuvenation of the face of the face). LASERS IN SURGERY AND MEDICINE, 57 (1), 15-26. https://onlinelibrary.wiley.com/doi/full/10.1002/lsm.23850.
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Laser technology for skin rejuvenation. Types of lasers
The laser is a Advanced tool in dermatology which allows you to treat various skin conditions with procedures Personalized.
Depending on its type and wavelength, you can address from fine lines and superficial scars to deeper wrinkles and severe damage to the skin (Review article).
In general terms, the lasers used in skin rejuvenation are divided into ablative and non -ablative. Let's look at the differences:
- Ablative lasers: They act eliminating leather layers for stimulate its regeneration. Among them are the carbon dioxide laser (co2) And the Erbio Laser (ER: YAG), which are highly effective in skin problems deeper. However, they require more recovery time and can generate more side effects.
- Non -ablative lasers: Unlike the previous ones, they do not eliminate tissue but stimulate the production of collagen and improve the skin firmness With minimal surface damage. They are ideal to treat Mild signs of aging
- Fractional lasers: They combine The best of both types, dividing the beam of light into Microhakes that penetrate the skin without damaging it in excess. This balances The benefits of ablative treatments with a shorter recovery time and less complications.
Laser technologies of fractional, ablative and non -ablative rejuvenation.
Ablative lasers eliminate external leather layers to reveal a fresh and rejuvenated skin underneath; non -ablative induce coagulation inside the skin to stimulate the production of collagen and the tensioned of the complexion without damaging its surface, and the fractional lasers are directed to Microscopic areas of the skin to optimize the results with a minimum recovery time.
Fountain: https://onlinelibrary.wiley.com/doi/full/10.1111/jocd.16514.
Perfecting the technique
The arrival of fractional lasers has meant a huge advance in the treatment of photo -teaching, as they offer results comparable to traditional ablative lasers but with less risk of side effects such as redness prolonged, hypopigmentation (normal skin loss) or scars.
Besides, Laser treatments are combining with other therapies To improve their results, be able to address more problems of The skin and minimize adverse effects.
For example, they combine with the use of neuromodulators (the botulinum toxin stands out in this group, better known as Botox), Intense clustered light before and after the procedure, and injectable therapies such as fillings of Hyaluronic acid or bioestimulants.
CO2 laser, or how to rejuvenate the face without surgery
One of the most obvious signs of aging is the one that manifests itself in the eye contour, where the skin is finer and prone to sagging, the appearance of wrinkles and loss of luminosity.
Over the years, science has explored various options to improve its appearance, from surgical procedures to less invasive treatments.
While the most aggressive therapies offer more drastic changes, minimally invasive procedures such as co -laser2 Fractional achieve progressive improvements with a shorter recovery time.
The first clinical trials with co2 They revealed their potential when used along with traditional surgery. In this EC of 2001, the effect of transconnectival blepharoplasty (aesthetic surgery that eliminates the bags of the eye and excess fat in the lower eyelid) alone compared to the surgical procedure is compared to the surgical procedure, plus the skin rejuvenation with co -laser2.
While surgical intervention alone achieved an improvement in the bulge of the lower eyelids in more than 90 % of the participants, wrinkles worsened in almost half of them. On the other hand, when surgery was performed together with co -cool2 There was a "significant improvement" in wrinkles.
«The transconjuntival blepharoplasty and the co -laser rejuvenation2 Adjuvant They represent an excellent alternative […] The procedure treats the wrinkles of the lower eyelid, the redundant skin and the fat of fat without leaving scars and with Little risk…».
There are currently multiple options for skin rejuvenation.
Nevertheless, the Lasers of fractional ablative carbon dioxide (FACL) They have become the "gold standard" —In the words of the experts— of the Non -surgical facial rejuvenation.
https://www.instagram.com/reel/C1Zyo6xs0Go/?igsh=MTZ2a25hb2JmN3ptZw.
The co -laser2 Fractional is an aesthetic treatment in which light impulses are emitted to improve skin status. Source: RR. H.H.
Its ability to Improve the texture, firmness and skin tone, together with the reduction of wrinkles and Other signs of aging, they have made them very popular since they were introduced in 2003.
The success of the therapy has led to these years to expand its applications, and it is expected that in the future it will continue to play an outstanding role in aesthetic and repairing dermatology.
The co -laser2 Fractional has proven to be an effective and safe treatment. It is used not only for facial rejuvenation and treating photoexing, but also to improve Acne scars and a good number of skin conditions (Reference 1, 2). Here are some samples of what it is capable of doing:
Patient images, a 60 -year -old woman annoyed for wrinkles and pigmentation in the facial area, before (a) and then (b) of the laser treatment of ablative carbon dioxide fractional facial ablative.
Patient images, a 64 -year -old woman with discomfort mainly in the periorbital area, before (a) and then (b) of periorbital facl treatment.
Patient images, a 60 -year -old woman with wrinkle discomfort and pigmentation in the facial zone, before (a) and then (b) of facial facial treatment.
Patient images, a 70 -year -old man with discomfort mainly in the nose area, before (a) and then (b) of facial facial treatment.
Patient images, a 60 -year -old woman concerned about the laxity of the tissues at the bottom of the face and neck, before (A, C) and then (B, D) of the FACL treatment of the bottom of the face and neck.
Image Source: https://onlinelibrary.wiley.com/doi/full/10.1002/lsm.23850.
Damage to heal: parallels between the CO2 laser and micropunctions
The benefits of co -laser2 In the skin they keep certain similarities with those achieved through Micropunctions (Microneedling), Another technique that many here know and put into practice.
Both laser rejuvenation co2 As micropunciones therapy share a key principle: induce a controlled damage in the skin in order to activate its regeneration mechanisms.
We cause small discomfort to the skin to react, regenerate and repair. Although they use different technologies, both treatments create microlesions that stimulate a repair response of skin cells.
- He Microneedling —As through the use of A dermaroller o Micropunction device - generates microscopic wounds in the epidermis, which triggers cutaneous regeneration and the formation of New and firmer skin (Detail on the web).
- This same concept is applicable to the co2, which, by means of thermal ablation, eliminates surface layers of the skin and favors the Collagen remodeling in the deepest layers.
In sum, Through damage to connective tissue and collagen fibers, we can stimulate deep changes in the skin and obtain clear benefits in terms of quality.
In addition, this principle is not only effective in rejuvenation treatments, but also in cases of alopecia. Let's look at this below.
CO2 laser for alopecia: An option to consider?
If the principle of "damage to heal" works in the facial rejuvenation, could it also be applied in the treatment of alopecia?
The hypothesis is as follows: the thermal damage of the coast2 On the skin it stimulates the scalp, improves blood circulation and can trigger a regenerative response that favors that restore tissue flexibility.
This creates an environment conducive to hair growth.
Explained otherwise, THE LASER CO2, by eliminating surface leather layers and stimulating the formation of new collagen, could Reduce fibrosis of the fabric (Blog detail), causing the skin to be more soft and therefore the hair can come out again.
Even cases of people with skin burns have been documented who, by decreasing this fibrosis, They managed to recover capillary growth in the affected areas.
Although more clinical studies are still needed to confirm its usefulness to treat alopecia, the hypothesis of using the co -laser2 fractional as a Complementary method to improve the health of scalp It is a possibility that, in our opinion, it deserves to explore. There we leave it :).
In short ...
The fractional carbon dioxide laser "is a popular and efficient skin rejuvenation treatment with a minimum recovery time and recent studies review.
As technology progresses, adverse events associated with this laser therapy have been drastically reduced. In addition, research and innovation are expected to continue improving their safety and effectiveness, expanding its applications and making it more and more accessible.
The Co laser benefits2 fractional are:
- Improves the texture and appearance of the skin.
- Reduce marks, scars and dilated pores.
- Decreases fine wrinkles and unifies skin tone.
These treatments - both laser co2 as Micropunctions on face, body either scalp-, based on the aforementioned principle of damage to heal, stimulate cell regeneration and They visibly improve skin quality.
And its potential goes beyond facial rejuvenation. In alopecia, co -laser2 "How do they do the Microneedling and the cranial massages- It could reduce the scalp fibrosis, favoring a more suitable environment for the growth of new hair.
By Elisabeth Lahoz
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