Park Kyung-Duck, Park Byung Cheol, Sung Ki Hyun, Lee Eunyoung, Lee Taewon, Yoon Daeki, Kim Kyu Bong, Park Gyeong Hun, Park Il Yong, Kim Myung Hwa
Department of Dermatology, Kyungpook National University School of Medicine, Daegu, Korea.
Department of Dermatology, College of Medicine, Dankook University, Cheonan, Korea.
Ann Dermatol. 2019 Jun;31(3):307-314. doi: 10.5021/ad.2019.31.3.307. Epub 2019 May 1.
For hair care products that are used almost everyday, it is important to estimate the cumulative dosage of long-term exposure and to assess the effects on the human body. Little data are available to evaluate actual daily usage in Asian populations.
Reliable exposure data for hair care products is essential to conduct safety assessments.
We evaluated the actual usage pattern and amounts by checking the daily log over a 2-week period, to obtain all the data regarding the participants' hair care preferences. And, statistical analyses were conducted to analyze the daily use amount (g/d) and daily usage per hair length (g/cm/d), and other variables by sex, age group, and hair oiliness.
Throughout this study, we found that female users consumed significantly larger daily amounts of shampoo and rinse. Male groups used more hair gel and spray than female groups. Interestingly, all the hair care products studied scored higher levels of usage among men when calibrated per unit length. Koreans tend to use lesser amount of rinse although their hairs are usually thicker than the Western hairs.
This study provides exposure information for commonly used hair care products, which will be useful for risk assessment purposes.
对于几乎每天都使用的护发产品，估计长期接触的累积剂量并评估其对人体的影响非常重要。目前几乎没有数据可用于评估亚洲人群的实际每日使用情况。
可靠的护发产品接触数据对于进行安全性评估至关重要。
我们通过检查为期两周的日常记录来评估实际使用模式和用量，以获取所有关于参与者护发偏好的数据。并且，进行了统计分析，以按性别、年龄组和头发油腻程度分析每日使用量（克/天）、每头发长度的每日使用量（克/厘米/天）以及其他变量。
在整个研究过程中，我们发现女性使用者每天消耗的洗发水和护发素用量明显更大。男性组使用的发胶和发喷雾比女性组更多。有趣的是，在校准单位长度后，所有研究的护发产品在男性中的使用水平更高。韩国人往往使用较少的护发素，尽管他们的头发通常比西方人厚。
本研究提供了常用护发产品的接触信息，这将有助于进行风险评估。
