Alsalhi Abdulaziz, Alzamil Lama, Alekrish Khalid, Alhaqbani Renad, AlKanaan Renad, Al-Mohaimeed Amal M, Almohawis Nada, Alsalhi Hamad, Al-Salhy Abdulmalik, Alsalhi Abdullah, Mitwalli Hadeel
Department of Dermatology, College of Medicine, King Saud University, Riyadh, Saudi Arabia.
College of Medicine, King Saud University, Riyadh, Saudi Arabia.
J Family Med Prim Care. 2024 Jan;13(1):230-234. doi: 10.4103/jfmpc.jfmpc_351_23. Epub 2024 Feb 8.
The human skin, with a pH of 4 to 6, serves as a barrier against external pathogens. Alkaline handwash products (HWPs) can compromise this barrier and are widely used following the Coronavirus disease-2019 (COVID-19) pandemic. This study aims to determine the pH of a sample of HWPs in Riyadh, Saudi Arabia, and assess the effect of environmental factors on their pH.
This is a cross-sectional, descriptive, observational study carried out in Riyadh, Saudi Arabia. The study involved a convenience sample of 33 liquid soaps, soap bars, and synthetic detergents (Syndets) from various brands. The pH of the handwash products was measured using laboratory-validated techniques. Data analysis was conducted using RStudio 2022 software.
Of the HWPs, 16 (48.5%) had a highly alkaline pH (≥10), while 14 (42.4%) had an acidic pH (4.0-6.9). Most liquid soaps were acidic (84.6%), with a mean pH of 5.9, whereas soap bars had a mean pH of 10.3. Syndets had a mean pH of 6.0.
On average, liquid soaps and syndets offered a more physiological pH than soap bars. Liquid soaps were more affordable than synthetic detergents, making them a better value option among the three types of HWPs. Environmental factors such as exposure to hot weather did not have a significant impact on HWPs.
人体皮肤的pH值为4至6，可作为抵御外部病原体的屏障。碱性洗手液产品（HWPs）会破坏这一屏障，在2019年冠状病毒病（COVID-19）大流行后被广泛使用。本研究旨在测定沙特阿拉伯利雅得市一批HWPs的pH值，并评估环境因素对其pH值的影响。
这是一项在沙特阿拉伯利雅得市进行的横断面、描述性观察研究。该研究纳入了来自不同品牌的33种液体肥皂、肥皂块和合成洗涤剂（合成清洁剂）的便利样本。使用经过实验室验证的技术测量洗手液产品的pH值。使用RStudio 2022软件进行数据分析。
在HWPs中，16种（48.5%）的pH值呈强碱性（≥10），而14种（42.4%）的pH值呈酸性（4.0 - 6.9）。大多数液体肥皂呈酸性（84.6%），平均pH值为5.9，而肥皂块的平均pH值为10.3。合成清洁剂的平均pH值为6.0。
平均而言，液体肥皂和合成清洁剂的pH值比肥皂块更接近生理值。液体肥皂比合成洗涤剂更实惠，使其成为三种HWPs中性价比更高的选择。暴露于炎热天气等环境因素对HWPs没有显著影响。
