Changes of pH, Sebum, Moisture Excreation Level of Skin Surface after
Benzoyl Peroxide Lotion Treatment on Acne Skin

Leem, Mi Hyea; Jung, Eun Hee; Leem, Mi Hyea; Jung, Eun Hee

Kor J Aesthet Cosmetol > Volume 3(1); 2005 > Article

Kor J Aesthet Cosmetol 2005;3(1): 37-48.

Benzoyl peroxide lotion 의 여드름 피부 적용 후 pH, 유분, 수분의 변화

임미혜, 정은희

Changes of pH, Sebum, Moisture Excreation Level of Skin Surface after Benzoyl Peroxide Lotion Treatment on Acne Skin

Mi Hyea Leem, Eun Hee Jung

ABSTRACT

This study was to observe sebum excretion, moisture excretion and pH value after applying 5% benzoyl peroxide lotion on acne skin. Volunteers were 8 people age of 20's, who had acne skin and sebum excretion, moisture excretion and pH value were measured in advance before and 30min, 1hour and 2hours after cleansing. After seeing with naked eyes, volunteers were divided 2 groups, who had the similar skin condition, who were that the one group applied 5% benzoyl peroxide lotion only and the other group was cared acne treatment with applying 5% benzoly peroxide lotion. Both groups applied benzoyl peroxide lotion for 4weeks and sebum excretion, moisture excretion and pH value were observed every week. The results were as follows, First, when sebum excretion was compared among anatomical sites and time, sebum excretion were higher forehead, nose, chin, cheek and crow's foot in order before and 1hour after cleansing (p<0.05). Second, sebum excretion during time decreased in the group which applied 5% benzoyl peroxide lotion only (p<0.001) and in the group which was cared acne treatment with applying 5% benzoyl peroxide lotion (p<0.05). Third, decreasing rate of sebum excretion was 38.9% in the group which applied 5% benzoyl peroxide lotion only and that of sebum excretion was 53.4% in the group which was cared acne treatment with applying 5% benzoyl peroxide lotion. The result showed that decreasing rate of sebum was higher in cared acne treatment group. Forth, when the level of moisture excretion during time was compared between the group which applied 5% benzoyl peroxide only and the group which was cared acne treatment with applying 5% benzoyl peroxide lotion, the study showed that the decreasing rate of hydration excretion was much higher in the group which was cared acne treatment (p<0.05).