Earticle

This study was conducted to investigate the perception of the harmfulness of cosmetics components according to safety interest in the use of daily cosmetics by female college students. For 30 days from September 1, 2019 to September 30, 2019, 791 female college students in Seoul and Gyeonggi area were surveyed. 727 copies were selected as the final analysis subjects and conducted by self-administering. The data were analyzed by using SPSS 21.0 program. The results showed that the safety awareness of ingredients according to the safety interest of cosmetics was higher than the functional awareness(p<0.001). The recognition of cosmetic reliability showed that the level of trust in organic cosmetics was high, and the recognition of cosmetic harmfulness was the highest in oxybenzone, and the safety awareness of the ingredients of the product was high in the order of synthetic coloring agent, synthetic flavoring agent, and oxybenzone. As a result of the study, safety awareness of cosmetics is high, but safety education and publicity are needed to recognize the harmfulness of cosmetics ingredients. It is considered that more systematic and professional education on chemical substances such as the use of allergen-inducing substances by customized cosmetics managers as well as education and promotion on safety of various cosmetics to be more diversely prepared due to the emergence of diverse functional cosmetics and customized cosmetics managers is needed.

As a study on the satisfaction of self-nail treatment services at specialty stores, the experimental method was surveyed by a total of 145 women in their teens and 40s living in the Seoul area, and 25 people who agreed to the survey were selected after explaining the purpose, contents and research procedures of the experiment. The results are as follows: Self-nail treatment is periodic for 2 to 1 month, and the reason for preference for self-nail is the highest in mood swings. Considering that the holding power after self-nail is 2 or 3 weeks, the most appropriate period is considered to be appropriate for 2 to 3 weeks. When receiving self-nail service from an expert, the proper cost is 30,000 to 30,000 won. It was found to be the first priority. In addition, the self-nail's cleanliness and hygiene were not considered seriously, and the self-nail's holding power and completeness were moderate. A small amount was found to be the cause for the self-nail. In this study, self-nail is preferred to be serviced together with basic nail care by experts, and it is considered that there will be demand when introducing a self-nail service program to introduce customers to nail shops.

This study reveals the close relation between sensory evaluation and rheological measurement about smoothness of creams. A rheological measurement has advantage over sensory evaluation because it gives robust and unchanging results while sensory evaluations cannot. Cosmetics gives satisfaction to users after it has been used. But during the usage of cosmetics, customers can be satisfactory if the smoothness of cosmetics catches the users mind. To test the smoothness of cosmetics large makers pay much to establish and maintain trained panels. But for a small and medium companies the expenditure for the panels are so large and unbearable. If we find a mechanical and unchanging method, it can be helpful to many small cosmetics companies. In this study we conducted sensory evaluation with university students and rheological measurement with rheometer. And we did regression analysis to connect the results of sensory evaluation and rheological measurements. It is concluded that rheological measurements can replace sensory evaluation of smoothness of creams.

Recently, as more and more people complain of hair loss caused by environmental factors such as micro dust, air pollution, and stress, the demand for anti-hair loss shampoos is increasing. However, people who have actually used anti-hair loss shampoo complained of the unpleasant scent of the shampoo and uncomfortable feeling such as the hair extension after use. Satisfaction is low because of the effects that do not meet these expectations. This study confirmed the antibacterial and antioxidant effects of cinnamon extract in applications to hair loss prevention shampoo. In order to verify the antibacterial and antioxidant effects of cinnamon extract, a free radical scavenging method using a disk diffusion method and DPPH solution was performed. Through the disk diffusion method, it was confirmed that cinnamon extract had antibacterial activity against four bacteria, Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, and Propionibacterium acnes. In addition, the free radical scavenging ability was confirmed using a DPPH solution.

The present study deals with In a sensory evaluation, the result showed that scaling gel of Chlorella minutissima extracts and natural composite extracts(Cinnamomum Camphora (Camphor) Leaf Extract, Gastrodia elata Extract Green tea extract, Zanthoxylum Piperitum Extract, Pulsatilla Koreana Extract, Gaultheria Procumbens (Wintergreen) Leaf Extract, Citrus Paradisi (Grapefruit) Fruit Extract) evidenced an improvement for sebum, dandruff and itching on oily/ seborrhea scalp. The analysis results in this paper will be used as the valuable basic data for oily scalp and seborrhea scalp.

In the cosmetics industry, consumers choose their brands carefully and seldom change their brands afterwards. Therefore, in a competitive environment of cosmetics industry, the brand becomes the main source of competitive advantage. This study examines the moderating role of brand awareness in the causal relationships among cosmetic usage experience, counterfactual thinking, and attribution. This study can provide implications for brand management of small and medium business by understanding consumer’s postpurchase behavior. First, we analyzed the route from cosmetic usage experience to counterfactual thinking. When cosmetic usage experience is negative, counterfactual thinking is higher for higher brand awareness than lower brand awareness. On the other hand, if cosmetic usage experience is positive, counterfactual thinking is not different between higher brand awareness and lower brand awareness. Next, we analyzed the path from cosmetic usage experience to attribution. When cosmetic usage experience is negative, brand attribution is higher for lower brand awareness than higher brand awareness. On the other hand, if cosmetic usage experience is positive, brand attribution is higher for higher brand awareness than lower brand awareness.