Acne laser treatment

Teenage girl with acne problem on beige background, closeup

Acne is a very common dermatosis ( a skin disease ) which generally starts at puberty, affecting the adolescence of 85% of people, regardless of ethnic background.
The main drawback is its unsightly appearance. Acne can have a psycho-social impact which we should not under-estimate.
Acne is a disease of the pilosebaceous follicles, developing in a variable fashion, for which the physiopathology identifies three stages: sebaceous hypersecretion; formation of retentional lesions : comedogenesis ( the formation of blackheads ) and the formation of inflamed lesions: papules, pustules and nodules.



Retentional lesions

Seborrhea is often the first manifestation of acne. This excess of sebum is responsible for the shiny appearance of the skin, dilated pores and the formation of retentional lesions: whitehead and blackhead.

Medical vector illustration of different types of acne on human skin. Appearance of pimples in hair follicle.


The blackhead or open comedo is constituted by a mixture of sebum and cells of the wall of the hair canal.

Medical vector illustration of different types of acne on human skin. Appearance of pimples in hair follicle.


The microcyst or whitehead is clinically presented as an indurated and localized bulge of the skin centered by a white area.
It corresponds to a sebaceous pilose follicle whose orifice of the hair canal is covered with cells of the epidermis which seal it.

Inflammatory lesions

The inflammatory phase begins as soon as there is enough bacteria in the sebaceous gland to cause a defense response of the body and inflammation of the follicle.

Medical vector illustration of different types of acne on human skin. Appearance of pimples in hair follicle.


The papules are red elevations, one to four millimeters in diameter, surrounded by an inflammatory halo.
The pustules surmount the papules, they are inflammatory containing pus. They can evacuate or form nodules by breaking in the deep layers of the skin.

Medical vector illustration of different types of acne on human skin. Appearance of pimples in hair follicle.

Acne nodules

Nodules correspond to a deeper attack of the skin and have a long evolution. They are the ones who can leave scars and sometimes have to be evacuated surgically.


acne très legere

Very light (Grade1)

Virtually no injury.
Rare comedones.
Open or closed.
Scattered and rare papules.

Acne on facial skin,Dermatological disease acne

Severe (Grade5)

Very inflammatory acne covering the face with nodules.

Young man struggling with acne on his face caring for his skin pushes acne

Light (Grade2)

Easily identifiable.
Less than half of the face is affected.
Some comedones.
Open or closed, and some papulo-pustules.

Acne skin because the disorders of sebaceous glands productions

Mild (Grade3)

More than half of the face is affected. Many papulo-pustules, many open and closed comedones.

Acne on the face of young women. Improper therapy has led to a severe form of chronic inflammation face.-Image

Moderate (Grade4)

The whole face is affected, covered with many papulopustules, open and closed comedones and rare nodules.


icepick scar acne on cheek on face women cause of skin loses collagen, so the overlaying skin collapses and leaves a hole,narrow and deep using for cream or skin care product concept, close up.

Atrophic scars

Atrophic acne scars are the most common, appearing as a form of depression on the skin’s surface, due to a loss of tissue above the base of the scar. They do not heal spontaneously.
Three types atrophic scars exist ( according to their contour, shape, the base and depth ): ice-pick or V-shaped scars; boxcar or U-shaped scars and rolling or M-shaped scars.

Close up of cyanotic keloid scar caused by surgery and suturing, skin imperfections or defects. Hypertrophic Scar on skin, dermatology and cosmetology concept.

Hypertrophic scars

Basic hypertrophic scars will regress more or less spontaneously in 12-18 months.

keloid scar of skin shoulder kid girl case of tissue forms over the wound to repair and larger than the original and treatment of laser to reduce size.

Keloid scars

Keloid scars do not regress spontaneously.

Teenage girl with acne problem on beige background, closeup

Erythematous macules

Pigmented or erythematous ( inflamed, rash like ) macules follow the scarring process of inflammatory acne surface wounds. Erythematous macules often disappear without trace in a few weeks, while pigmented macules regress very slowly.


beauty salon, facial peeling mask with retinol and fruit acids


Peels, especially those based on salicylic and glycolic acid, reduce inflammation of acne lesions and seborrhea of ​​the face and stimulate skin regeneration.


Lasers, can help by reducing the total bacteria (Proprionibacterium acnes) and by reducing the size of sebaceous glands, and thus the production of sebum.

Lasers and lamps which act on Proprionibacterium acnes are:

– Blue light, thanks to pulse lamps (which have a spectrum of excitation of about 400nm).
– KTP laser (532 nm).
– All Pulsed Dye Lasers (585 and 595 nm)Lasers which act on the sebaceous glands.
– Infrared lasers:
1) Lasers at 1320 nm.
2)  Lasers at 1450 nm.
The diode 1450 nm laser (the ‘Smoothbeam’) is strongly absorbed by water, resulting in a maximum heat effect in the papillary dermis, at a depth of about 200-400 microns. The sebaceous glands are at this depth. The created heat leads to the fibrosis of the sebaceous gland, and greater collagen production. The aim is to gradually heat the upper dermis (surface layer) without damaging the epidermis, hence without burning it.
A slight red rash (erythema) can last from a few hours to a few days after the treatment, but it is easy to cover with make-up.
3 or 4 sessions will be needed, at an interval of one month.
3) 1540 nm. The Er-Glass 1540 nm ARAMIS laser acts on the sebaceous glands and the follicular infundibulum. Thanks to the length of its waves, absorbed by the targets and water, and barely captured by melanin, the treatment is suitable for dark and tanned skins. 3 or 4 sessions will be needed, at an interval of one month.

Therapist beautician makes a laser treatment to young woman's face at beauty SPA clinic. Facial laser hair removal epilation procedures. Face care rejuvenation medical correction for model by apparatus in salon. Close up, selective focus.
Young woman having LED light facial treatment in beauty salon


Light exposure has long been used to reduce acne. In cases of mild to moderate acne, LED phototherapy uses blue light to attack the Proprionibacterium acnesbacteria, and red light for its anti-inflammatory action.



I was very neurotic because of the acne bumps on my face. I didn’t dare go outside anymore, Doctor Romano knew how to listen and treat me effectively. If I had to do it again, I would without hesitation. Thank you Doctor!


A patient of Doctor Romano for many years, I have always been satisfied with the results! I’ve been doing a laser treatment for acne for 6 months. A huge thank you. I feel more beautiful every day.


I am satisfied with the result, the laser treatment was truly effective in my case. I recommend this doctor to people who have a lot of acne.


I have had acne since I was 14 years old and I still have as many at 30. The laser sessions done by Doctor Romano gave me a smooth and spotless face. Thank you for being welcoming and attentive.


Written by Valeria Romano

Former intern at the Hospitals of Paris Graduate of the Faculty of Medicine, University of Paris 7 – Paris Diderot Registered with the medical board of Paris, n° 75/80452 More informations

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