Actual consumption amount of personal care products reflecting Japanese cosmetic habits

Abstract

-Safety assessments of cosmetics are carried out by identifying possible harmful effects of substances in cosmetic products and assessing the exposure to products containing these substances. The present study provided data on the amounts of cosmetic products consumed in Japan to enhance and complement the existing data from Europe and the United States, i.e., the West. The outcomes of this study increase the accuracy of exposure assessments and enable more sophisticated risk assessment as a part of the safety assessment of cosmetic products. Actual amounts of products applied were calculated by determining the difference in the weight of products before and after use by approximately 300 subjects. The results of the study of skincare products revealed that in comparison with the West, large amounts of lotions and emulsions were applied, whereas lower amounts of cream and essence were applied in Japan. In the study of sunscreen products, actual measured values during outdoor leisure use were obtained, and these were lower than the values from the West. The study of the use of facial mask packs yielded data on typical Japanese sheet-type impregnated masks and revealed that high amounts were applied. Furthermore, data were obtained on cleansing foams, makeup removers and makeup products. The data from the present study enhance and complement existing information and will facilitate more sophisticated risk assessments. The present results should be extremely useful in safety assessments of newly developed cosmetic products and to regulatory authorities in Japan and around the world.

Halal Cosmetics: A Review on Ingredients, Production, and Testing Methods

“…Realistic evaluation of chemical permeation can be attained when conditions closely simulating actual use conditions are employed [119]. The use of a finite dose and the manner of formulation application (in membrane) must be reflective of actual in-use conditions (e.g., layered application, defined sequence).…”

Layering sunscreen with facial makeup enhances its sun protection factor under real‐use conditions

“…[8][9][10]12,28 One previous study on the quantities of various cosmetic products actually applied by Japanese individuals suggested that each person applied 0.82 g sunscreen and 0.138 g liquid foundation per application on average. 16 In our study, the real-use conditions of layering were set as reduced application dose as well, and we simulated the use of even lower concentrations of makeup products than sunscreen, guided by our small-scale pretest and previous studies. 16,28 The use of less makeup than sunscreen may be due to the easily observed change in facial color upon application of makeup products.…”

“…We set up two common facial makeup routines: (a) consecutive application of sunscreen and cushion-type foundation and (b) consecutive application of sunscreen, liquid foundation, and compact powder. The amount of each product applied was chosen to reflect real-life conditions, based on the results of a previous study 16 and the results of a small-scale pretest in which we measured the weight of a product before and after application. The quantities of products used were divided by the covered skin area to determine the appropriate amount of product to apply per area of skin for the experiments.…”

“…11,15 As part of their facial skin care and makeup routine, some people apply sunscreen to their skin sequentially after skin care products, and apply facial makeup products as a next step. 11,16,17 Furthermore, people sometimes re-apply sunscreens, 11,18,19 or wear them in wet, windy, and sweaty environments that easily wash the applied sunscreen off the skin. 11,20,21 Several studies have simulated various real-life conditions of sunscreen use and the resultant sunscreen UV protective ability.…”

Cosmetics Usage Habits and Related Side Effects Among Females: Lithuanian Case

“…The use of cosmetics is associated with a variety of social outcomes, ranging from perception of physical attractiveness to evaluation of expected job performance (Bartles, 2019). However, in many countries, as well as in Lithuania, there is anxiety about the impact of cosmetic products on consumer health in the society (Malinauskienė, 2015;Cho et al, 2017;Kirchhof & Gannes, 2013;Yamaguchi et al, 2017). Lithuania is not among the leaders of cosmetic countries, producing and dominating in the export of products to other countries of the world, but it has a lot of small manufacturers of cosmetics.…”