식초 식이가 전신경락마사지로 인한 피로도 저감화에 미치는 영향

여혜연,이혜연,이지연,강상모 한국피부과학연구원 2014 대한피부미용학회지 Vol.12 No.2

This study investigates the effectiveness on the fatigue diminution from full body Meridian massage,comparing the 2 groups, one as a comparing group and the other as an experimental Vinegar diet group. Through the massage, in the subjective response, 5 in a comparing group (62.5%) and 7 in an experimentalgroup felt a little tired or never. While the blood Lactic acid density decreased 9.5% in the comparing groupand 11.4% in the experimental group, this’s similar trend to the fatigue degree. The Cortisol increased onlyin the experimental group, by 100%. The Norepinephrine did by 60%, but the Epinephrine showed samewith the comparing group. Therefore the Vinegar resolves the Lactic acid, and increased the Cortisol andthe Norepinephrine. So it seems to help the fatigue recovery. And just with the Vinegar diet, superoxidedismutase (SOD) grows by 127%, after the massage, reached to even 217%. biological antioxidant potential(BAP) grows by 75%, after the massage, increased 28% more than the comparing group did. By the way,glutathione peroxidase (GPx) density decreased by 17% after the Vinegar diet, after massage, decrementedby 35%. It seems to induce the catalase (CAT). These antioxidative activities growth increased diacronreactive oxygen metabolites (d-ROMs) 5% in the comparing group but just 1% in the experimental group. From this, the Vinegar diet seems to be very effective to reduce the fatigue after full body Meridian massage.

Relation between Sensory Analysis and Efficacy Evaluation of Glycolic Acid Eye Patch

여혜연,김정희 한국미용학회 2019 한국미용학회지 Vol.25 No.5

This study is to compare with sensory and efficacy evaluation of glycolic acid(GA) eye patch. To assess the evaluation, the eye patch containing the various concentration of GA gels, i.e. 0% GA (control), 1% (sample A), 3% (sample B) were prepared. The subjects comprised thirty women aged 20~30 years who had dark circles and were recruited from an organization via invitation. The thirty women divided into 3 groups of control, 1% GA and 3% GA(10 subjects each). Eye patches were used twice a week during the 4 weeks. The skin color of the dark circle's site was measured after applying the eye patch using spectrum colorimeter (CM-700d Minolta, Tokyo, Japan). The subject was requested to score after 4 weeks of applying on the dark circles. From the efficacy evaluation results, L * (lightness) in 3% GA and 1% GA eye patch increased significantly in the first and second week, respectively. a * (redness) and b * (yellowness) decreased significantly in 3% GA eye patch from the first week but not in 1% GA eye patch. In the sensory evaluation results, There are significantly different among the groups, sample B(3% GA) had the highest satisfaction for whitening and effectiveness. Taken together, the findings highlight the potential usefulness of 3% GA eye patch for sensory and efficacy evaluation.

라이프 마스크 재료에 따른 표현방법 및 효과에 관한 연구

여혜연,김정희 한국미용학회 2009 한국미용학회 추계학술발표회 Vol.2009 No.-

Stability Determination of the Various Cosmetic Formulations containing Glycolic Acid

여혜연,김정희 한국패션비즈니스학회 2018 패션 비즈니스 Vol.22 No.3

Glycolic acid(GA) is well known the most effective cosmetic ingredient on the epidermal remodeling, accelerated desquamation and inhibitory effect on melanin synthesis. The various cosmetic formulations containing GA have not been reported in terms of stability. This study was to investigate the stability of three formulations(gel, cream, and ointment). The stability of obtained formulations was tested chemical and physical characteristics including the composition stability, hot-cool cycling, the variation of pH and viscosity, and the observation of color and odor. The experimental results showed that the gel and cream containing 5% GA, both formulations have proper stability in the centrifugal test, hot-cool cycling test, viscosity, pH stability and the observation of color and odor. On the other hand, the 5% GA ointment did not have stability. We concluded that the formulations of gel and cream are more suitable than ointment to use GA ingredient for developing cosmetic in terms of stability.

라이프 마스크 재료에 따른 표현방법 및 효과에 관한 연구

여혜연 ( Hye Yeon Yeo ),김정희 ( Jeong Hee Kim ) 한국미용학회 2009 한국미용학회지 Vol.15 No.4

The purpose of this study is to discuss appropriate application of various life mask techniques that is essential to stage in make-up industry. As life mask was expressed by applied materials and techniques in special effect, we understand how they were utilized, how to apply each life mask techniques and how make-up materials were used. To conclude we present each techniques were best effected what kind of field in beauty industry. The result is as follows; As using wax, it can be considered as easy and effective in a partial representation to compare other materials. Liquid latex are effectively represented in swelling of the wound, acne, chapped lips, scars and wrinkles etc. It does not accurately represent the skin contact surface. To Apply silicon, hot form and cold form, It is engraved frame, all embossed with the framework must be completed so that could have the most sophisticated effects.

양파껍질 추출물 식이가 전신경락마사지로 인한 피로도 저감화에 미치는 영향

여혜연 ( Hye Yeon Yeo ),이혜연 ( Hye Youn Lee ),강상모 ( Sang Mo Kang ) 대한미용학회 2014 대한미용학회지 Vol.10 No.1

This study targeted people who don`t get periodic meridian massages, with the reason that usually people with regular massages are apt to feel the fatigue less, but on occasions, they could feel it. Hence, the effects of onion peel extracts intake on the fatigue reduction were investigated by the comparison between meridian massage treatment group (C) and onion peel extracts intake group before meridian massage treatment (OE). The result was summed up as follows. After massages, 5 subjects from C group (6.5%) and 7 subjects from OE group (87.5%) felt a little or no fatigue. In blood analyses, lactic acid concentration of C and OE groups decreased by 9.5% and 16.7%, respectively. The uric acid concentration increased by 6.4% in OE group. The stress hormone was reduced in all people in OE group. On the other hand, superoxide dismutase (SOD), glutathione peroxidase (GPx) and biological antioxidant potential (BAP) increased. And diacron reactive oxygen metabolites (d-ROMs) showed 5.4% increase in C group, whilst 3.5% increase in OE group. From these results, it`s proved that the onion peel extracts intake consolidated the effects of the meridian massages by suppressing the fatigue stuff, stress hormone, and oxidative stress hormone formation. The onion peel extract intake before a meridian massage is considered as a very appropriate method to reduce the fatigue which easily appeared after massages.

전신경락마사지 후의 피로정도와 피로물질의 변화 분석

여혜연 ( Hye Yeon Yeo ),이혜연 ( Hye Youn Lee ),이지연 ( Ji Yeon Lee ),강상모 ( Sang Mo Kang ) 한국미용학회 2013 한국미용학회지 Vol.19 No.5

The purpose of this study aimed to evaluate fatigue-related biochemical alterations, we measured various parameters just before and after a massage. 22 healthy female volunteers in their 20 to 40 years, were taken blood samples before and after 2 hours and half meridian massage. Fatigue substances and antioxidant enzyme related substances were analyzed. After the meridian massage, on the questionnaire of fatigue degree, person who answered ‘a bit tired’ or ‘not tired’, so called, less tired than normal status, is assorted to a healthy group. Person who answered more tired than normal status, is called a non-health group. After the meridian massage, healthy group, all 12showed lactic acid levels reduced. On the contrary, 8 in non- healthy group, showed increased levels. Uric acid after the meridian massage, increased 0.2% in the healthy group, 1% in the non-healthy group, respectively. The level of SOD after the meridian massage was obviously 2.5 times higher induction rate than in the healthy group compared with the non-healthy group. The level of GPx before the meridian massage was significantly 21% higher than in the healthy group compared with the non- healthy group. But, after the procedure, only the non-healthy group showed 7% decreased level. Based on these results, we suggest that a fast decomposition of lactic acid, SOD with the capability of induction, a high GPx concentration is considered as an important factor on the classification as ahealthy group, in the survey of fatigue levels.

우리나라 성인 여성의 손톱 형태 측정

여혜연 ( Hye Yeon Yeo ),김송이 ( Song Yi Kim ),박건 ( Kun Park ),김정희 ( Jeong Hee Kim ) 한국미용학회 2017 한국미용학회지 Vol.23 No.2

The purposes of this study is twofold: first, to standardize fingernail configuration of adult women in Korea; second, to set the basic data for the nail beauty industry. This study directly measures the size of fingernail configuration of 600 Korean women, ranging in age from 20s to 40s, with digital vernier calipers, radius gauge, and digital tape measure. The measurement result were analyzed by statistically. The descriptive data analysis provides baseline values for the transverse nail plate curvature of the thumb, index, middle, ring and little fingers. The hight of fingernail cross section was calculated by applying Srinivasa Ramanujan`s formula for the ellipse circumference and the results were used to analyze curvature of fingernail. The height-to-width ratio and curve length-to-width ratio of different digits indicate differences in fingernail curvatures: The thumbnail is the flattest, followed jointly by the little fingernail, index fingernail, then middle fingernail, and finally ring fingernail. The measured values of fingernail configuration can be applied as a basic data when designing for sizing systems of nail products or tor manufacturing various artificial nail tip and nail sticker products.

20~40대 여성의 제모에 대한 인식 및 이용실태와 만족도

여혜연 ( Hye Yeon Yeo ),임미라 ( Mi Ra Lim ),이종신 ( Jong Sin Lee ) 한국미용학회 2012 한국미용학회지 Vol.18 No.2

This study can be used as a source, to the industry marketing strategy in demand status and preference in the Shaving market. Its experiments are executed to 350 females of 20`s to 40`s in Seoul and Jeon-Ra province. The survey includes 28 inquies, as 6 on Age, Location, Concern on looks, 15 on Recognition, Concern, Physical part, Shaving way, Shaving environment, Info. Gathering way, Necessity, 7 on Experience, Satisfaction measurement, Reason of dissatisfaction, Side effects, Image effect, Effect on skin treatment. The result follows. The analysis on preferential Shaving ways, shows that, rather than the expediency of Shaving, tweezers, depilator, users pursue the satisfaction on effect, using Razor, Honey wax. The response on the side effects of skin status after shaving, says tingling for 69 people(23%) and dark complexion for 65(21.7%) in its highest rank. Investigation on the shaving cost a month and the cost expectation, leads to a little bit expensive at the cost expectation, but they are willing to pay more. According to demographical feature, the recognition on Shaving and inclination on this service, has attentive difference among groups for new shaving way, by Age, Job and Income. Most females respond positively on Shaving service. Particularly among 20`s and 30`s they want to get the management than people in their 40`s. Also with more income and more educated, the interest and necessity on Shaving become bigger.

연구논문 : 미용 전공 여대생을 대상으로 한 특수분장 재료의 첩포검사

여혜연 ( Hye Yeon Yeo ),박건 ( Kun Park ),김정희 ( Jeong Hee Kim ) 한국미용학회 2011 한국미용학회지 Vol.17 No.2

Related to the deformed materials of the Stage makeup, there`s no regulation in domestic law now. In the supply of products, the finished goods are imported, so the verification of ingredients and cosmetics is incomplete. The result is as follows: 1. The path test on 24 antigen series to the cosmetology majors, shows that the positive rate of the path test on the Korean standard antigen series, is 53.3% and the rate of the 4 Stage makeup materials is 13.3%. For the Korean standard antigen series, the top 3 antigen series are Thimerosal 16.7%, Nickel sulphate 15%, P-tert Butylphenol formalde-hyderesin 10% in order. The antigen series in low positive rate, are Colophony 3.3% (2persons), Cobalt chloride 1.7% (1p), Paraben mix 1.7% (1p), Cl+MeIsothiazolinoe 1.7% (1p), Mercaptobenzothia zole 1.7% (1p), Mercapto mix 1.7% (1p). 2. For the 4 Stage makeup materials, only 13.3% as a whole positive rate, Collodion 10% and Spirit gum 3.3%, shows the positive rate of the path test. Besides with Latex and Duo adhesive, all guinea pigs has negative reaction on skin problems. This verifies the safety of these materials. 3. To investigate whether a person, with reaction on 24 Korean standard antigen series, reacts on the 4 Stage makeup materials or not, it compared between the Korean standard antigen series with the positive rate and the Stage makeup materials with the positive rate of Collodion, Spirit Gum. Apart from we expected the relationship, the 9 Korean standard antigen series and the Special stage makeup with positive rate, arise independently. In this way, without any standard of safety legislation for the Special makeup cosmetics, the users should pay extra attentions and offer the following-up control.