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Novel facial cosmetic area 'O zone' shows unique characteristics in sebum excretion and acne lesion distribution.
Skin Res Technol 2014; 20(2):164-9SR

Abstract

BACKGROUND

We usually divided cosmetic facial zone into the T zone and U zone by the level of sebum secretion. Our recent studies suggested that the perioral area showed different characteristics in the aspect of acne development.

OBJECTIVE

To investigate the unique characteristics of the O zone (perioral area) among the three facial areas.

METHODS

A total of 102 patients clinically diagnosed as acne vulgaris were included. The acne lesions were counted from the clinical digital photographs by facial areas. The sebum level was measured using Sebumeter(®) . Area-weighted (AW) sebum and AW density of three areas of face were calculated. Statistical analysis was performed according to age and gender.

RESULTS

There were no differences in the mean AW sebum level between the gender and age groups. Male has higher AW density of acne lesions than female at the O zone. The mean AW density of acne lesions on the NT zone, U zone, and whole face showed decrease by age, but at the O zone, 21-30 years group showed the highest mean AW density of acne.

LIMITATIONS

Age- and gender-matched patients do not represent the whole acne patients.

CONCLUSION

We suggested that the O zone is an independent facial zone, which showed a moderate-to-high sebum secreting area, maintained the acne lesions development by age, and predominated acne lesions in the male acne patients than female acne patients. Therefore, the O zone should be separated from the usual cosmetic T zone, and NT zone should replace the old T zone.

Authors+Show Affiliations

Department of Dermatology, Seoul National University College of Medicine and Seoul National University Bundang Hospital, Seongnam, Gyeonggi, Korea.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

23981080

Citation

Youn, Sung Hwan, et al. "Novel Facial Cosmetic Area 'O Zone' Shows Unique Characteristics in Sebum Excretion and Acne Lesion Distribution." Skin Research and Technology : Official Journal of International Society for Bioengineering and the Skin (ISBS) [and] International Society for Digital Imaging of Skin (ISDIS) [and] International Society for Skin Imaging (ISSI), vol. 20, no. 2, 2014, pp. 164-9.
Youn SH, Choi CW, Choi JW, et al. Novel facial cosmetic area 'O zone' shows unique characteristics in sebum excretion and acne lesion distribution. Skin Res Technol. 2014;20(2):164-9.
Youn, S. H., Choi, C. W., Choi, J. W., Kim, B. R., Byun, S. Y., & Youn, S. W. (2014). Novel facial cosmetic area 'O zone' shows unique characteristics in sebum excretion and acne lesion distribution. Skin Research and Technology : Official Journal of International Society for Bioengineering and the Skin (ISBS) [and] International Society for Digital Imaging of Skin (ISDIS) [and] International Society for Skin Imaging (ISSI), 20(2), pp. 164-9. doi:10.1111/srt.12101.
Youn SH, et al. Novel Facial Cosmetic Area 'O Zone' Shows Unique Characteristics in Sebum Excretion and Acne Lesion Distribution. Skin Res Technol. 2014;20(2):164-9. PubMed PMID: 23981080.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Novel facial cosmetic area 'O zone' shows unique characteristics in sebum excretion and acne lesion distribution. AU - Youn,Sung Hwan, AU - Choi,Chong Won, AU - Choi,Jae Woo, AU - Kim,Bo Ri, AU - Byun,Sang Young, AU - Youn,Sang Woong, Y1 - 2013/08/28/ PY - 2013/07/08/accepted PY - 2013/8/29/entrez PY - 2013/8/29/pubmed PY - 2014/12/15/medline KW - O zone KW - T zone KW - U zone KW - acne KW - age KW - gender KW - sebum KW - sebumeter® SP - 164 EP - 9 JF - Skin research and technology : official journal of International Society for Bioengineering and the Skin (ISBS) [and] International Society for Digital Imaging of Skin (ISDIS) [and] International Society for Skin Imaging (ISSI) JO - Skin Res Technol VL - 20 IS - 2 N2 - BACKGROUND: We usually divided cosmetic facial zone into the T zone and U zone by the level of sebum secretion. Our recent studies suggested that the perioral area showed different characteristics in the aspect of acne development. OBJECTIVE: To investigate the unique characteristics of the O zone (perioral area) among the three facial areas. METHODS: A total of 102 patients clinically diagnosed as acne vulgaris were included. The acne lesions were counted from the clinical digital photographs by facial areas. The sebum level was measured using Sebumeter(®) . Area-weighted (AW) sebum and AW density of three areas of face were calculated. Statistical analysis was performed according to age and gender. RESULTS: There were no differences in the mean AW sebum level between the gender and age groups. Male has higher AW density of acne lesions than female at the O zone. The mean AW density of acne lesions on the NT zone, U zone, and whole face showed decrease by age, but at the O zone, 21-30 years group showed the highest mean AW density of acne. LIMITATIONS: Age- and gender-matched patients do not represent the whole acne patients. CONCLUSION: We suggested that the O zone is an independent facial zone, which showed a moderate-to-high sebum secreting area, maintained the acne lesions development by age, and predominated acne lesions in the male acne patients than female acne patients. Therefore, the O zone should be separated from the usual cosmetic T zone, and NT zone should replace the old T zone. SN - 1600-0846 UR - https://www.unboundmedicine.com/medline/citation/23981080/Novel_facial_cosmetic_area_'O_zone'_shows_unique_characteristics_in_sebum_excretion_and_acne_lesion_distribution_ L2 - https://doi.org/10.1111/srt.12101 DB - PRIME DP - Unbound Medicine ER -