• KSBB Journal
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• v.28 no.5
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• pp.287-294
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• 2013

Stained and discolored hair will be damaged by the shampooing, daily UV disposal, and the use of hair dryer. Thus many studies about the effect of various natural substances on the re-secure the skin and scalp are recently reported. This study was carried out to investigate the effect of green tea (Camelloia sinensis) seed oil on colored (dyed) and decolored (bleached) hair. The beneficial effects of green tea seed oil are already well known, but little research has been done about the hair treatment and fade-resistant effect. Dyed and bleached hair was pretreated with green tea seed oil to determine the tensile strength and elongation of the hair, to analyze the hair surface using SEM, and to compare the color fade using spectrocolormeter. The results showed that the tensile strength increased with green tea seed oil pretreatment samples for virgin, dyed, and bleached hairs. Elongation showed the reverse results showing the presence of hair treatment effect. The results of the surface pre-treatment in all groups analyzed by SEM, the hair cuticle became sharper, so coating effect were identified with all samples. The value of the $L^*$, $a^*$, $b^*$ decreased with washed hairs damaged by UV irradiation and the values were decreased also in dyed and bleached hair. In summary, green tea seed oil prevent reinjury to the heat and UV rays for colored and decolored hairs. Cosmetic practice effects of the oil were identified in the field to be appropriate to the customer's skin and scalp that natural cosmetic oils would like to offer.

• Journal of the Semiconductor & Display Technology
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• v.14 no.4
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• pp.1-7
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• 2015

People are always pursuing the aesthetic feeling relentlessly. But some people have such problems with their hairs like alopecia, cancer chemotherapy, burns, and scalp injury. So the synthetic hair has played a very important role to make up for these deficiencies. But long term use can lead to adverse reactions or uncomfortable feeling. This is primarily caused by its properties differ with human hair. In particular, nanotribological characterizations (roughness, friction force and adhesive force) of synthetic hair surface are dissatisfy with the needs of normal hairs. This paper presents the experiments on nanotribological characterizations measurements of human hairs (coloring hair, permed hair and common hair) in shampooing condition or without shampooing condition. Using atomic force microscopy (AFM) to find out a range of synthetic hair nanotribological characterizations which can correspond with natural hair. The measurements of nanotribological characterizations focus on surface roughness, friction force and adhesive force, and a new design of AFM probe was used for measuring the nanotribological characterizations.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.7
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• pp.311-318
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• 2016

This study conducted a 4-week clinical trial on 30 males suffering from seborrheic dermatitis and hair loss symptoms to examine the effects of rooibos extract on the seborrheic dermatitis improvement of 30-50 year old middle aged males. The comparison group used shampoo with no rooibos extract while experiment group 1 used shampoo including rooibos extracts, and experiment group 2 used shampoo and scalp enhancer including the rooibos extracts. The results showed that there were no meaningful changes on the scalps of the comparison group while experiment group 2, which used both shampoo and scalp enhancer including rooibos, showed better improvement on seborrheic dermatitis than experiment group 1 which only used shampoo including rooibos. These results imply that shampoo and scalp enhancer including rooibos extracts effectively improve the oil-moisture balance on seborrheic dermatitis and effectively deals with scalp itchiness redness and the color tone of the scalp, suggesting its use in scalp cosmetics that include antioxidation activation elements, which are effective in improving seborrheic dermatitis.

• Biomedical Science Letters
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• v.16 no.4
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• pp.323-330
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• 2010

Although copper and zinc are essential metals for human health, excessive level of these metals is toxic. Besides, aluminum is known to induce various adverse health effects including neurological disorders. Therefore, monitoring the human body burden of these metals is important in preventing adverse health effects. In this study, we assessed the exposure to copper, zinc, and aluminum among an adult population residing in Daegu and Kyungbuk areas. Based on data from 171 participants, we found that the geometric mean copper, zinc, and aluminum concentrations in hair were $15.1\;{\mu}g/g$ [95% confidence interval (CI): 13.1~17.5], 76.9 (95% CI: 70.4~84.1), and $1.11\;{\mu}g/g$ (95% CI: 0.81~1.51), respectively. The copper concentrations in hair were significantly related to age, education, and residence area. In addition, zinc concentrations in hair were significantly related to age, whereas higher hair aluminum concentrations were related to alcohol drinking. Correlations between copper and zinc in hair had a significant positive correlation. Our findings suggest that the body burden of copper, zinc, and aluminum varies according to demographic factors, and hair could be used as a valuable biological medium for metal exposure.

• The Journal of Korean Medicine
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• v.27 no.2 s.66
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• pp.57-69
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• 2006

For decades, scientists and clinicians have examined methods of measuring scalp hair growth. There has been a greater need for reliable, economical and minimally invasive means of measuring hair growth and, specifically, response to Oriental medicine therapy. We review the various methods of measurement described to date, their limitations and value to the clinician. In our opinion, the potential of computer-assisted technology in this field is yet to be maximized and the currently available tools are less than ideal. The most valuable means of measurement at the present time are global photography and phototrichogram-based techniques (with digital image analysis). Subjective scoring systems are also of value in the overall assessment of response to therapy and these are under-utilized and merit further refinement.

• Journal of the Korean Society of Fashion and Beauty
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• v.5 no.2 s.13
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• pp.48-55
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• 2007

This Study was conducted in order to provide a satisfying beauty service to customers by investigating the effect of hair thickness on personality and attitude of hair style. It executed a survey of customers within the age of $20{\sim}}40$ who come and go to beauty salons, dwell in Kyeong-gi and Seoul. First, it investigated the difference of blood types depending on hair thickness. Second, it investigated how hair thickness affects on types of personality. Third, it investigated the difference of hair style attitude depending on hair thickness. We picked normal hairs for mineral test from our salon customers of the occipital region, except coloring hairs, white hairs. The hairs were picked 2 cm off from the scalp. In the result, many people with thick hair were found to have the blood type O, and many people with thin hair were found to have the blood type A. Also, in the types of personality the owners of thick hair and thin hair were highly found to have characters of both sexes, the owners of normal hair were highly found to have feminine characters. Many of the owners of thick hair appeared to prefer short hair styles, a high percentage of the owners with thin hair appeared to have long hair styles, A type people who are introspective prefer soft and long hair styles which have less movement.

• Archives of Plastic Surgery
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• v.46 no.3
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• pp.241-247
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• 2019

Background Postoperative pain is one of the most common concerns of patients undergoing hair transplantation surgery. Because most patients are satisfied with the cosmetic improvement after transplantation, amelioration of postoperative pain would help to increase patient accessibility to hair restorative surgery and greatly impact patient satisfaction with the final cosmetic results. This study was performed to investigate postoperative pain after hair transplantation. Methods In total, 241 patients (202 who underwent follicular unit transplantation [FUT] and 39 who underwent follicular unit extraction [FUE]) were eligible for the study. Postoperative pain was evaluated on postoperative days 1, 2, 3, 4, 5, and 7 using the Wong-Baker Faces Pain Scale. The patients' medical records were retrospectively reviewed for information on the harvesting method, number of transplanted grafts, size of donor design, and laxity, elasticity, and glidability of the scalp in relation to postoperative pain. Results Postoperative pain after hair transplantation, assessed with the Wong-Baker Faces Pain Scale, seemed to provide very subjective results. None of the variables were correlated with postoperative pain in the FUT group. Such pain, however, tended to disappear by postoperative day 3. Patients in the FUE group experienced significantly less severe pain than those in the FUT group. Conclusions Postoperative pain was significantly less severe in patients whose donor hair was harvested by the FUE than FUT method. Postoperative pain had almost disappeared by postoperative day 3 in the FUT group, whereas only minimal pain was present even on postoperative day 1 in the FUE group.

• Applied Microscopy
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• v.44 no.2
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• pp.47-52
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• 2014

Fine structural characteristics of eggs (nits) found on the scalp hairs of Korean children were observed with scanning electron microscopy. An egg is structurally composed of four parts: the cementum, nit body, operculum, and aerophyle. The total length of an egg is about 1.5 mm. The glue secreted from the female louse completely surrounds the 1 mm hair shaft and forms the cementum. The thickness of the cementum at the end of the nit body was found to be more than 5 times the thickness at the end toward the scalp. The nit body is shaped like a goblet with a very smooth surface. The operculum and aerophyles are located at the apiculus area. In the circular operculum, there are 10 aerophyles concentrated on the side of the hair shaft surface that are shaped like a dome. Three aerophyles in the center are surrounded by 7 aerophyles. Each aerophyle is dome shaped with a diameter of $65{\mu}m$ and a respiratory pathway with a $15{\sim}25{\mu}m$ opening at the center. On the cut surface where the operculum is separated as the egg hatches, long grooves about $1{\mu}m$ thick are uniformly formed transversely. These long grooves facilitate the separation of the operculum through body expansion at the time of hatching.

• Journal of the Korean Society of Clothing and Textiles
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• v.41 no.3
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• pp.556-574
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• 2017

This study explored the appearance management experiences of breast cancer patients undergoing mastectomy. For data collection, one-on-one interviews were held with 18 Korean females diagnosed with breast cancer from the first stage to the third stage from 2008 to 2015. The data was analyzed through a three-step analysis of grounded theory. QSR NVivo 11.0 for Mac was applied in order to avoid biased results according to the subjective viewpoint of researchers. From open coding results, six paradigms and 15 categories were drawn. The results of axial coding showed that the psychological changes category was the central phenomenon. Additionally, three categories (skin changes, scalp/hair changes, and general reactions) were found to be causal conditions, and five paradigms (clothing behavior, skin care behavior, makeup behavior, scalp/hair-care behavior, and shopping behavior) were found to be action/interaction strategies. Last, selective coding integrated fragmented qualitative data through open coding and axial coding in order to derive explanatory narratives. A comprehensive examination of the appearance management behaviors of breast cancer patients suffering from extreme stress due to physical/psychological changes enables this study to provide a foundation for related studies to be activated in the clothing and textiles discipline.

• Journal of Convergence for Information Technology
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• v.12 no.3
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• pp.236-243
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• 2022

This study attempted to find the optimum amount of manuka extract ingredient with hair treatments in different manuka extract contents and examine its bleached hair protection effects. For this, the tensile strength and moisture level of the damaged hair were measured. In addition, hair conditions were analyzed, using SEM and FE-SEM. In terms of protection of bleached hair, all experimental groups (M1, M2, M3) were more effective than the control group (no manuka extract added) in tensile strength, moisture level, hair thickness and cuticle conditions. In particular, 'M3 (3% manuka extract)' revealed the largest hair protection effects. The above results confirm that Manuka extract-added hair treatments would be useful in protecting damaged hair as well as scalp as a cosmetic material. It is anticipated that there would be further studies on diverse chemical treatments with a much wider variety of samples.