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Baby shampoo
Baby shampoo /ˈbā-bē/ /ʃæmˈpuː/ is a hair care product that is used for the removal of oils, dirt, skin particles, dandruff, environmental pollutants and other contaminant particles that gradually build up in hair; specially formulated for use on infants and young children by means of substituting chemicals which are purportedly less irritating to the eyes than those commonly found in regular shampoo.
==Purpose==
Scalp skin of babies is characterized by subdued sebaceous gland production, due to hormonal levels. The sebaceous gland secretes sebum, a waxy ester, which maintains the acid mantle of the scalp and provides a coating that keeps skin supple and moist. The sebum builds overly, between every 2–3 days for the average adult. Those with delicate skin such as children may experience a longer interval. Sebum also imparts a protective coating to hair strands. Daily washing will remove the sebum daily and incite an increase in sebum production, because the skin notices the scalp skin is lacking sufficient moisture. For babies, the sebaceous gland production is not at peak, thus daily washing is not typically needed.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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