發質的類型由頭發的天然狀態決定，即由身體產生的皮脂量決定，不同的發質有不同的特性，那么應該如何判斷自己屬于何種發質呢？
1、中性發質：如果頭發不油膩，不干燥，那么這種頭發屬于中性發質，是光澤、柔順、健康的發質。軟硬適度，油脂分泌正常，只有少量頭皮屑。
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、干性發質：如果頭發無光澤、干燥、容易打結，特別是在浸潤的情況下難于梳理，且通常頭發根部頗稠密，但至發梢則變的稀薄，有時發梢還開叉，那么這種頭發屬于干性發質。干性發質是由皮脂分泌不足或者頭發角蛋白缺乏水分，經常漂染或用過熱溫度洗發，天氣干燥等造成。
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、油性發質：如果頭發細長、油膩、需要經常清潔，那么這種頭發是油性發質，缺乏光澤。由于皮脂分泌過多，而使頭發油膩，大多與荷爾蒙分泌紊亂、遺傳、精神壓力大、過度梳理以及經常進食高脂食物有關，這些因素可使油脂分泌增加。發絲細者，油性頭發的可能性較大，這是因為每一根細發的圓周較小，單位面積上的毛囊較多，皮脂腺同樣增多，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.
