发质的类型由头发的天然状态决定，即由身体产生的皮脂量决定，不同的发质有不同的特性，那么应该如何判断自己属于何种发质呢？
1、中性发质：如果头发不油腻，不干燥，那么这种头发属于中性发质，是光泽、柔顺、健康的发质。软硬适度，油脂分泌正常，只有少量头皮屑。
If the hair is not greasy, not dry, then the hair is neutral hair is shiny, supple, healthy hair. Softness and hardness, oil secretion to normal, only a small amount of dandruff.
2、干性发质：如果头发无光泽、干燥、容易打结，特别是在浸润的情况下难于梳理，且通常头发根部颇稠密，但至发梢则变的稀薄，有时发梢还开叉，那么这种头发属于干性发质。干性发质是由皮脂分泌不足或者头发角蛋白缺乏水分，经常漂染或用过热温度洗发，天气干燥等造成。
If the hair dull and dry, easy to tie, in particular, is difficult in the case of infiltration comb and the hair root is usually quite dense, it tends to become thin to the tips, and sometimes hair has split ends, which are dry hair hair. Dry hair is a shortage or lack of hair keratin sebum secretion of water, often dyeing or shampoo with hot temperatures, dry weather and other causes.
3、油性发质：如果头发细长、油腻、需要经常清洁，那么这种头发是油性发质，缺乏光泽。由于皮脂分泌过多，而使头发油腻，大多与荷尔蒙分泌紊乱、遗传、精神压力大、过度梳理以及经常进食高脂食物有关，这些因素可使油脂分泌增加。发丝细者，油性头发的可能性较大，这是因为每一根细发的圆周较小，单位面积上的毛囊较多，皮脂腺同样增多，故分泌皮脂也多。
If the hair is thin, greasy, require frequent cleaning, then the hair is oily hair, lack luster. Due to excessive secretion of sebum, leaving hair greasy, mostly related to hormonal disorders,genetic, mental stress, excessive combing and frequent consumption of high-fat foods, and these factors can increase oil secretion. Hair fine person, the larger the possibility of oily hair, this is because each of the smaller circumference of fine hair, the hair follicles per unit area is more, the same increase in the sebaceous glands, it is also more sebum secretion.
