n.角质化，角（质）化作用

Keratinization is the process by which cells in the outermost layer of the skin and hair turn into keratin.
角质化是皮肤和头发最外层细胞转化为角蛋白的过程。
The formation of a hard, protective layer on the nails is an example of keratinization.
钉子上形成坚硬保护层是角质化的一个例子。
Keratinization helps prevent水分 loss and infection in the skin.
角质化有助于防止皮肤水分流失和感染。
During pregnancy, increased levels of hormones can trigger accelerated keratinization of the skin.
在孕期，激素水平升高可能导致皮肤角质化进程加速。
The process of keratinization is essential for the development of healthy nails and hair.
角质化过程对于健康指甲和头发的形成至关重要。
In the hair shaft, keratinization occurs through a series of complex biochemical reactions.
在毛发中，角质化通过一系列复杂的生化反应进行。
Dermatologists often recommend moisturizers to slow down excessive keratinization in psoriasis patients.
皮肤科医生常常建议湿疹患者使用保湿剂以减缓过度角质化。
Keratinization is a normal part of the skin's natural cycle, but it can be disrupted by certain medical conditions.
角质化是皮肤自然周期的一部分，但某些疾病可能会影响这一过程。
The process of keratinization is reversed during exfoliation, allowing new, healthy skin cells to emerge.
在去角质过程中，角质化过程会逆转，让新的健康皮肤细胞得以显现。
The keratinized layer on the scalp protects against environmental irritants and keeps the hair follicles clean.
头皮上的角质层能防止环境刺激物并保持毛囊清洁。