敏感性皮肤(sensitiveskin)和“皮肤过敏”是两个不同的概念,皮肤过敏是一种变态反应,由变应原进入机体后,促使机体产生相应的抗体,引发抗原抗体反应,表现为红斑、丘疹、风团等临床客观体征,常伴瘙痒。而敏感性皮肤是一种高度不耐受的皮肤状态,易受到各种因素的激惹而产生刺痛、烧灼、紧绷、瘙痒等主观症状,皮肤外观正常或伴有轻度脱屑、红斑和干燥。以化妆品为例,皮肤过敏是在使用某些产品后出现致敏现象;而敏感性皮肤则表现为对所有化妆品均不能耐受,其产生的机制主要包括:神经传导功能增强、皮肤屏障功能下降、血管扩张和炎症介质释放等。
Sensitive skin and “Skin allergy” are two different sensative skin. Skin allergy is an allergic reaction in which an allergen enters the body and causes the body to produce antibodies to the allergen, clinical objective signs, such as erythema, papules and wheals, often accompanied with pruritus. And sensative skin is a highly intolerant skin condition, prone to subjective symptoms such as tingling, burning, tightness and itching, the skin appears normal or with mild scaling, erythema, and dryness. For example, in the case of cosmetics, skin allergy is an allergic reaction to certain products while sensative skin allergy is an intolerance to all cosmetics, the mechanisms include: the enhancement of nerve conduction function, the decrease of skin barrier function, the expansion of blood vessels and the release of inflammatory mediators.
Sensitive skin and “Skin allergy” are two different sensative skin. Skin allergy is an allergic reaction in which an allergen enters the body and causes the body to produce antibodies to the allergen, clinical objective signs, such as erythema, papules and wheals, often accompanied with pruritus. And sensative skin is a highly intolerant skin condition, prone to subjective symptoms such as tingling, burning, tightness and itching, the skin appears normal or with mild scaling, erythema, and dryness. For example, in the case of cosmetics, skin allergy is an allergic reaction to certain products while sensative skin allergy is an intolerance to all cosmetics, the mechanisms include: the enhancement of nerve conduction function, the decrease of skin barrier function, the expansion of blood vessels and the release of inflammatory mediators.