Laser Hair Reduction Research Articles

Triple Wavelength for Laser Hair Reduction: Parameter Selection and Optimisation of Results

Triple Wavelength for Laser Hair Reduction: Parameter Selection and Optimisation of Results

What's New in Diode Laser Hair Removal?

ABSTRACTIntroductionLaser hair removal remains one of the most common procedures in cosmetic dermatology. It has always been challenging because of the higher competing epidermal melanocyte as the targeted hair chromophore is also melanin. As a result, to avoid unwanted side effects from laser therapy while maintaining high efficacy levels, the use of the right laser device, appropriate settings, and customized pre and posttreatment care are crucial. With more efficient versions of existing lasers in the market, the safety profile has been taken care of without compromising the efficacy. Diode lasers along with long pulsed Nd:YAG and alexandrite are considered as the safest hair removal lasers.ObjectiveTo summarize recent developments in diode laser hair reduction focusing on improvements in efficiency, safety, and patient compliance with recent innovations.Materials and MethodsA review of recent literature updates in diode laser hair reduction technology focusing on multiwavelength systems, safety profiles, and innovations in laser device was searched using keywords diode laser hair removal and mutliwavelength diode laser devices.ResultsCurrently, 810 nm diode laser is the most extensively used technology for the long term elimination of unwanted hair, thus establishing itself as an efficacious and safe modality. The rapid multiple pass in motion technique with lesser fluence and gradual heating of the skin epidermis was more well tolerated in patients than the higher fluence single shot method. Most popular combination of triple wavelength was 755, 810, and 1064 nm, which is considered most effective with least complications.ConclusionDiode lasers still remain the gold standard in laser hair removal especially on darker skin types. Recent innovations in diode laser have significantly improved the efficacy, safety, and patient compliance with hair reduction. Multiwavelength platforms seems to be the way forward, however the basic principles and certain problems like minimal pain, treating thin hair, paradoxical hair growth, white hair removal still remains a challenge.

53150 Laser Hair Reduction in Amputees Improves Health-Related Quality Of Life

53150 Laser Hair Reduction in Amputees Improves Health-Related Quality Of Life

A rare adverse event following laser hair reduction.

A rare adverse event following laser hair reduction.

Efficacy and safety of diode laser for facial hair reduction in hirsutism-a clinico-trichoscopic evaluation.

Hirsutism is the presence of excessive terminal hair on androgen-dependent sites of the body. Lasers like Alexandrite, diode, and Nd:Yag lasers have been used for hair reduction with varying efficacy. Trichoscopy of hair is a simple noninvasive method of hair assessment. However, it has not been used in the assessment of diode laser hair reduction. This study aimed to assess the efficacy and safety of diode laser hair reduction in skin color with the help of clinical and trichoscopic assessment. This prospective observational study included 73 patients of hirsutism recruited in 18-month period. All participants received sessions of 805 nm diode laser at monthly intervals up to six sessions. Clinical and trichoscopic evaluation along with photographs were obtained at each visit. Side effects, if any, were noted in every sitting. All patients were females of Fitzpatrick skin types III-V. All clinical parameters showed statistically significant hair reduction when compared with baseline. Trichoscopic parameters of hair reduction like total hair count, terminal hair count, and terminal/vellus hair ratio showed reduction compared to baseline which was statistically significant (P < 0.05). The most common side effect noted in our study was pain followed by erythema and perifollicular edema. Diode laser is an effective and safe procedure for the reduction of unwanted facial hair, even in darker skin types. We also wish to emphasize that trichoscopy for the assessment of laser hair reduction is a recent, noninvasive, simple, and underutilized tool. No serious adverse events were noted in our study.

Evaluating the effectiveness of laser hair reduction using a home use laser in comparison to a Diode laser.

Lasers of different wavelengths have been developed for use in permanent hair reduction. An increase in the manufacturing of home-use laser hair removal devices allows for these treatments to be performed in the comfort of your own home at an affordable cost. To evaluate the effectiveness of permanent hair reduction using a Diode laser in comparison to the Silk'n™ Flash and Go Lux (475-1200 nm) home-use laser. Fifteen females received six axillae laser hair removal treatments at two to four-week intervals using either a professional laser or home-use laser device. Photographs and hair counts were taken before each treatment and at a three week follow up. A T-test was used to evaluate statistical significance, and regression analysis to determine a difference in the effects. Pain scores and side effects were recorded by a visual analogue scale in a satisfaction questionnaire. The professional laser showed an overall hair reduction of 85% on the right axilla and 88% on the left axilla. The home-use laser showed an overall reduction of 52% on the right axilla and 46,3% on the left axilla. Mild side effects were experienced for both laser devices. There were no serious adverse effects reported, safety features are effective to a certain extent. The Flash & Go Lux home-use laser can effectively reduce hair at a slower rate than the Diode laser. The home-use laser device offers protection against accidental exposure to light and use on darker skin types. Risks of retinal damage due to long-term exposure to home-use laser light are still cause for concern.

Efficacy of long pulse neodymium-doped yttrium aluminium garnet 1064 laser permanent hair reduction treatment in skin types V and VI Nigerian patients

Background: There are no studies examining the use, safety, efficacy, effective fluence and pulse duration of Laser hair reduction in Nigerians. This study aimed to document the safety, efficacy, effective fluence and pulse duration, and the number of Laser sessions to achieve permanent hair reduction. Methods: A retrospective review of Laser hair removal in 87 FitzPatrick skin type V and VI patients from January 2017 to August 2021 using the neodymium-doped yttrium aluminium garnet (Nd:Yag). The fluence (Joules/cm3), pulse duration (msecs), Laser site and interval between Laser sessions were documented. Data was summarized using frequencies and percentage proportion. Comparison of pulse duration, fluence, and the number of sessions between different body sites was tested using analysis of variance. Results: A total of 354 laser sessions were performed in 87 patients made up of 80 females and 7 males; mean age of 35.8±9.24 years. The face was the most frequently treated site (67.5% of the sessions). The mean number of laser sessions, pulse duration and fluence were 4.07±4.22, 19.38±1.48 (msec) and 18.22±1.29 (J/cm3) respectively. An average of 6 sessions was required to achieve permanent hair reduction: the face required a significantly lower number of sessions, p=0.043. Conclusions: The long pulse Nd:Yag 1064 laser is an effective and safe Laser for hair removal in skin types V and VI. The effective, safe pulse duration and fluence are 16 to 22 msec and 15 to 20 J/cm2 respectively. The face requires fewer number of Laser sessions.

Long-pulsed neodymium-doped yttrium aluminum garnet for hair reduction in pediatric microtia repair.

Microtia is the term for congenital malformation of the ear in which the external and internal ear are absent or malformed. Surgical reconstruction is a common management approach and occasionally requires hair reduction of the newly constructed auricle. Few studies have investigated lasers for this purpose. Weconducteda retrospective chart review of patients seen at a single institution between 2012 and 2021 who underwent laser hair reduction with long-pulsed neodymium-doped yttrium aluminum garnet laser (Nd:YAG). Efficacy ratings were done through review of clinical photographs. Twelve patients were identified with 14 total ears treated. The number of laser treatments varied from 1 to 9 sessions with an average of 5.1 treatments. The majority (8/12) had an "excellent" or "very good" response, one patient had a "good" response, and three were lost to follow-up. Other than pain, there were no side effects documented. Nd:YAG laser was both effective and safe in our pediatric cohort, without any cutaneous side effects in patients with darker skin.

Isolated Faun Tail at Thoracic Level

Faun tail or Silky down is an abnormal posterior midline hypertichosis, usually lumbo-sacral, which maybe associated with spinal dysraphism. The appearance also causes psychological distress to the patient. This is a case report of a 14-year old female presenting with a faun tail over mid thoracic region, without any associated spinal anomaly. Permanent laser hair reduction was performed for cosmetic improvement, using triple wavelength laser.

Analysis of laser-generated plume concentration during in vivo laser hair reduction procedures in a tertiary referral laser dermatology unit.

Air particulate concentrations for a typical day of laser hair reduction procedures in a tertiary referral laser dermatology unit were measured, while all standard operating procedures were followed. Concentrations above the World Health Organisation PM2.5 Air Quality Guidance level were detected even following current guidance on room ventilation and local exhaust ventilation. This suggests that further analysis into this hazard is required to assess the use of current engineering and personal protective equipment controls for operators

Severe persistent urticaria following laser hair reduction.

Laser hair reduction is a common practice that utilized light-based therapy to prevent future hair growth. Complications following laser hair reduction treatment include thermal burns, which may lead to hyper- or hypopigmentation, hair stimulation, scar, or transient erythema of treated areas. Review reports of persistent urticaria following laser hair reduction and discuss a rarely discussed laser complication. Pubmed literature review. There have been very rare reports of persistent urticaria following laser hair reduction. Similar case reports have also been described though no definitive reasoning for this reaction, nor consistent treatment has been documented. In this report, we present a patient who developed persistent urticaria with severe pruritus in the areas treated with laser hair reduction. Previous reports an association was found between allergies and post-treatment urticarial eruption, with 33/36 patients having allergies, mostly to dust mites which is similar to the patient presented. Other etiologies such as reaction to cryogen and physical urticaria are unlikely. Our report highlights a case of persistent urticaria with severe pruritus following laser hair reduction treatment, with both similarities and differences to other cases reported in the literature. While this is a rare side effect of laser hair removal, it should be monitored in patients who have a history of moderate to severe environmental allergies.

An insight into laser hair reduction

Magdalena Atte-Motte discusses hair reduction with laser and intense pulsed light, including side effects, assessing skin type and how to achieve the best results

Study of Efficacy of Diode Laser in Unwanted Facial Hair: Dynamic Versus Static Mode

Background: Hair forms an important appendage of the body playing a significant role in an individual’s psychosocial personality. Hirsutism is the presence of terminal hair at androgen-dependent sites in a female. Hypertrichosis is excessive hair growth all over the body in a non-androgen dependent manner. Increased terminal facial hair growth leads to cosmetic embarrassment, psychological distress and a low self-esteem in women. Currently, the most effective and advanced procedure for unwanted hair removal is laser epilation. Diode laser (800-855nm) are the most frequently used for this purpose and can be used in two different modes FDP (Fast delivery pulse) and DP (delivery pulse). With this study we aim to compare the efficacy of these two modes of diode laser for facial hair reduction.&#x0D; Objectives: 1.To study the clinical presentation of unwanted facial hair in patients visiting the department. 2. To study the trichoscopic features of facial hair in patients. 3.To study the correlation between the endocrinal abnormalities and clinical presentation in patients with increased facial hair. 4. To study the effectiveness of two different modes of diode laser on facial hair.&#x0D; Methods: It is a prospective randomized control study with a total of 20 female patients in the age group of 18-50 years with complaints of unwanted facial hair. VIKINI Diode laser of wavelength 808nm will be used for treatment. Post randomization the participants will be divided into two groups, one of them will be treated with FDP (Fast delivery pulse) mode and the other with DP (delivery pulse) mode. A total of six sittings will be performed at an interval of 4 weeks. Baseline trichoscopy findings as well as trichoscopy at follow up visits at one, three and six months will be recorded. Post procedure patient satisfaction and pain assessment will be also be recorded.&#x0D; Expected Results: The result would be undertaken in SPSS software. This study will help in understanding which technique is superior for laser hair reduction for facial hair.&#x0D; Conclusion: The conclusion will be based on findings for study protocol.

Use of silicone gel sheet to reduce pain during laser hair reduction of the upper lip

Use of silicone gel sheet to reduce pain during laser hair reduction of the upper lip

What else than eyes need special protectors during laser hair reduction sessions?

Complications of laser hair reduction should be classified not only to skin and ocular complications but to skin, ocular, and scalp hair complications. Do not forget the plumes. Awareness about laser dangers is very critical. In this way, able to progress the security of both patients and laser providers. Does Nd: YAG cause more bad effect than Alexandrite on scalp hair melanin of laser providers and why? The study aimed at detecting the effect of cumulative exposure to scattered beam during laser hair reduction on the laser providers which may cause unexpected scalp hair melanin affection. The study included 150 female subjects: One hundred medical personnel engaged in laser-assisted hair reduction procedure; half of them were wearing head cover (hijab) and 50 female subjects not dealing with hair reduction laser systems (half of them were wearing hijab). Two laser devices were used: Alexandrite laser (GentleLase PRO® 755nm, Candela Corp., Wayland, MA, USA) and neodymium-doped Yttrium Aluminium Garnet (Nd: YAG) (Synchro HP 1064nm, Deka M.E.L.A s.r.l., Calenzano (FI), Italy) laser. A significant higher number of grey hairs in medical personnel (P < 0.001) was evident at the initial examination and at each follow-up visit thereafter. The number of grey hairs at initial assessment, after 6months and after 1year, was significantly higher in medical personnel dealing with Nd: YAG laser than those using long-pulsed Alexanderite laser (P < 0.001 each). A noteworthy positive correlation was found between working years, grey hair number at the start of study, and the progression (excess) in number of grey hairs after 1year regardless of the laser system used. It seems that scalp hair pigment needs specific protection as does the eye pigment. Greater attention should be paid to possible long-term hazards particularly on service providers.

Comparative study of the clinico-trichoscopic response to treatment of hirsutism with long pulsed (1064 nm) Nd:YAG laser in idiopathic hirsutism and polycystic ovarian syndrome patients.

Treatment of hirsutism is usually resistant, and from medical management to laser hair reduction, the treatment of hirsutism and its assessment are the most challenging. The aimof the study was to compare the response to treatment by laser hair reduction with long pulsed (1064 nm) Nd:YAG laser in patients of idiopathic hirsutism and polycystic ovarian syndrome (PCOS) by clinical and trichoscopic assessment. A hospital-based comparative, observational prospective study was carried out on female patients with hirsutism over a period of 18 months with two groups of participants: fifty women with idiopathic hirsutism (group A) and fifty with PCOS (group B). Laser hair reduction was done with long pulsed (1064 nm) Nd:YAG laser in both groups up to six sessions, 4 weeks apart and followed for 3 months post last laser session. After the sixth session of laser hair reduction, excellent response (> 75% reduction) from baseline was seen in 70% of patients in group A and in 54% of patients in group B. After 3 months of follow-up of the last laser session, it was found that the results persisted in patients with idiopathic cause than in those due to PCOS, seen both clinically and trichoscopically with decrease in hair shaft thickness, hair shaft colour, terminal vs. vellus hair ratio and hair density per cm2. Hirsutism due to idiopathic cause responds better to laser hair reduction with long pulsed (1064 nm) Nd:YAG laser than that due to PCOS, due to underlying hormonal imbalance in the latter group. Follow-up of only up to 3 months after last laser session was done and tricoscan was not done.

Efficacy and safety of triple wavelength laser hair reduction in skin types IV to V.

Laser hair reduction is one of the most common laser procedures in dermatology. Laser systems available are Ruby at 694nm, Alexandrite (755nm), Diode (810nm), and Nd:YAG (1064nm). Recently, devices presenting a combination of wavelengths have shown to produce high effective hair reduction with no related risks. This study was conducted with the Soprano Ice Platinum (Alma Lasers, GMBH, Germany) that emits a combination of three wavelengths at 755, 810, and 1064nm in a single pulse. To establish the efficacy and safety of novel triple wavelength laser hair reduction technology in skin types IV to V. This was an investigator initiated, single-center, prospective clinical study conducted between December 2017 and June 2019 with a total of 25 patients (23 female and two male) above 18years with skin types IV and V, areas included are face, beard, neck, chest, and others. Hair reduction was assessed using the physician GAIS (global esthetic improvement scale) score: no results 0% reduction, poor 0%-25% reduction, average 25%-50%, good 50%-75%, and excellent 75%-100%. All 25 patients (mean age 28years, range 18-52 y/o) completed all six sessions of the study. Objective clinical assessment of hair reduction using the physician GAIS score in 90 anatomical sites scores an excellent reduction in 95.5% areas and good reduction in 80% areas. This current study shows that a synergistic combination of three diode laser wavelengths used for hair removal (755, 810, 1064nm) is effective and safe to use in subjects skin types IV and V for facial and body hair.

Newer Technologies in Laser Hair Reduction Using Simultaneous Emission of Multiple Wavelengths: A Mini Review

Newer Technologies in Laser Hair Reduction Using Simultaneous Emission of Multiple Wavelengths: A Mini Review

Customized mask for patients during facial procedures to maximize the work field

Laser hair reduction should be withheld according to coronavirus disease 2019 (COVID-19) guidelines. As a result of which, patients with hirsutism are suffering. However, in case of urgency, procedures can be done with appropriate precautions. According to Centers for Disease Control and Prevention guidelines, it is necessary to cover the patient's face with a protective mask. Because a traditional mask covers most of the face, it is not possible to perform a laser procedure when a patient's mask is being worn.

Laser hair reduction for hidradenitis suppurativa warrants insurance coverage

Hidradenitis suppurativa is a chronic, painful disease that significantly reduces quality of life. Laser hair reduction is one modality that can be used in combination with other treatments to ameliorate the condition. We argue that insurance should provide coverage for this necessary service.