20 citations
,
July 1988 in “Clinics in dermatology” This article reviews the current practices and interpretations of research data on permanent waving and hair straightening, but does not present any new research findings.
1 citations
,
September 2022 This study found that sugar waxing led to slower hair growth and reduced hair thickness, but increased ingrown hair and inflammation compared to hard waxing.
December 2024 in “Frontiers in Surgery” This systematic review found no existing studies evaluating the effectiveness of waxing and mechanical epilation as methods of preoperative hair removal to reduce surgical site infections, highlighting a potential area for future research.
70 citations
,
June 1998 in “Polymer” This study found that permanent waving treatment partially disrupts the α-helical structure in human hair microfibrils, primarily during the initial reduction phase, rather than just affecting disulphide bonds.
37 citations
,
October 2015 in “PeerJ” This study found that shampoo and conditioner do not alter hair's molecular structure, while perming treatments significantly affect keratin and intermediate filament structures due to bond alterations.
31 citations
,
November 2003 in “Journal of Occupational Health” This study found that the reproductive function of female hairdressers may be negatively affected by long-term exposure to permanent-waving solutions containing thioglycolic acid, raising concerns about its potential carcinogenic effects.
18 citations
,
January 2008 in “Sen'i Gakkaishi” This study observed that repeated perm treatments decrease disulfide bonds in hair due to their conversion largely into cysteic acid, affecting the waving efficiency depending on the reduction agent used.
3 citations
,
August 2008 in “PubMed” This study found that digital perm treatments using sodium thioglycolate lotion led to the most significant reduction in protein content and greater hair damage compared to other methods and lotions.
1 citations
,
April 2013 in “Pakistan Journal of Biological Sciences” This study found that hair coloring, waving, and ironing were associated with increased hair abnormalities compared to untreated hair in Iranian women.
November 2024 in “Biophysical Chemistry” This study analyzed the swelling behavior of human hair during permanent waving treatment, finding that both the microstructure and macrostructure of intermediate filaments swell simultaneously at the initial stage, and while partially destructed by reduction, they are considerably restored through oxidation.
May 2009 in “International Journal of Cosmetic Science” In this study, permanent waving treatments, especially those using lotion B and repeated procedures, were found to significantly damage hair protein content and physical properties.
7 citations
,
October 2013 in “International Journal of Dermatology” This study found that folliculitis after waxing is more common on the proximal extremities, with one-third of cases involving a foreign body reaction resembling pseudofolliculitis.
150 citations
,
July 2001 in “Clinics in dermatology” This article discusses hair care practices and hair cosmetics in managing alopecia but reports no new clinical findings; it emphasizes the importance of scalp health and good patient-physician communication.
February 2022 in “Cosmetic Dermatology” This review discusses the history and composition of permanent hair waving products for different hair types and reports no new research findings.
December 2025 in “Journal of Society of Cosmetic Chemists of Japan” This study found that massaging hair treatments into hair improved the treatment's effectiveness by reducing hair waviness and enhancing shape cohesion.
July 2026 in “Journal of Investigative Dermatology”
2 citations
,
June 2016 in “Journal of Medical Science And clinical Research” This study examines the potential effectiveness of Barever natural hair inhibitor, which includes papaya and other herbal ingredients, in reducing hair growth permanently when applied after hair removal.
53 citations
,
July 2016 in “Cosmetics” This study reviews the biology and cosmetic treatment of hair, emphasizing future advancements in safer, more effective procedures to meet consumer needs for hair care.
13 citations
,
September 2017 in “International Journal of Cosmetic Science” This study found that waving virgin human hair with thioglycerol at pH 9.0 using ammonia solution caused less damage than using thioglycolic acid, while maintaining good waving efficiency.
December 2000 in “Kirk-Othmer Encyclopedia of Chemical Technology” This paper reviews various aspects of hair care products, including formulations, regulations, categories, and safety, without reporting new clinical findings.
This study found that adding Rosehip extract to permanent waving products with cysteine improved waving efficiency and reduced hair damage compared to thioglycolate-based products.
271 citations
,
December 2005 in “New England journal of medicine/The New England journal of medicine” This article discusses evaluation and treatment options for a 19-year-old woman with slowly progressive hair growth and reports no new clinical findings.
89 citations
,
March 1990 in “PubMed” This study found that shaving was the most helpful and commonly used temporary hair removal method among women with facial hirsutism.
76 citations
,
January 2007 in “American Journal of Clinical Dermatology” This review discusses the dermatologic features of PCOS as potential early indicators of the syndrome and notes that treatment of these conditions may enhance quality of life and psychological well-being, but it reports no new clinical results.
39 citations
,
January 2008 in “Journal of cosmetic and laser therapy” This review examines the literature on laser hair removal to provide evidence-based guidelines for treatment intervals, pre- and post-treatment practices, and areas that should be avoided, but presents no new findings.
39 citations
,
July 2005 in “Current medical research and opinion” This article discusses available methods for managing excessive facial hair growth in women and mentions that eflornithine 11.5% cream can reduce hair growth and the frequency of removal, but it reports no new clinical findings.
15 citations
,
July 2001 in “Clinics in Dermatology” Current hair removal methods improve appearance but need more research for better options.
14 citations
,
March 2010 in “Gynecological endocrinology” This article provides an overview of treatment options for hirsutism, summarizing both pharmacologic and non-pharmacologic approaches, but reports no new clinical results.
11 citations
,
August 2019 in “PubMed” This review discusses the causes, evaluation, and treatment options for hirsutism in women, but reports no new clinical results.
5 citations
,
September 2021 in “PubMed” This review discusses various hair removal methods and highlights that most research is limited to darker hair and fairer skin, suggesting a need for studies on light-colored hair; it reports no new clinical results.