Welcome to China Surfactant Detergent & Cosmetics, Today is

China Surfactant Detergent & Cosmetics ›› 2019, Vol. 49 ›› Issue (3): 187-192.doi: 10.3969/j.issn.1001-1803.2019.03.010

• Development and application • Previous Articles     Next Articles

Study on antibacterial activity of plant essential oils and its application in cosmetics

Yu-hao GUI1,Xiao MENG1,Qing-sheng CHEN1,Sheng-zhao GONG1,2   

  1. 1. Guangzhou Uniasia Cosmetic Technology Co., Ltd., Guangzhou, Guangdong 510663, China
    2. Guangzhou Industry Technical College, Guangzhou, Guangdong 510300, China
  • Received:2018-07-26 Revised:2019-03-05 Online:2019-03-22 Published:2019-04-04
  • Contact: Sheng-zhao GONG

Abstract:

Through bacteriostatic tests of six essential oils, it is found that cinnamon essential oil, rose essential oil and sweet orange essential oil have better antibacterial activity, and the cinnamon essential oil which contains high content of aldehyde has the best antibacterial effect. The effect of adding cinnamon oil on the antiseptic system in the cream was studied. The results show that the amount of preservative should be added to 0.25% in the cream without adding cinnamon oil to reach better inhibition effect on bacteria and fungi. In the cream with 0.01% cinnamon essential oil added, the amount of preservative can be adjusted to bacteria and fungi by adding 0.1%. The study demonstrates that the addition of cinnamon essential oil in cosmetics can decrease the dosage of preservatives. Through skin irritation test, it is found that the L/D value of the cream with 0.01% cinnamon essential oil and 0.15% preservative is 112.26, while that of cream with 0.25% preservative is 58.53. This indicates that adding cinnamon essential oil in cosmetics can reduce the amount of preservative and the irritation of cosmetics. However, when the amount of preservatives used is 0.15%, the L/D value of the cream to which the cinnamon essential oil was added is slightly lower than that of the unadded cream, illustrating that the cinnamon essential oil itself is slight irritating.

Key words: cosmetic additive, essential oil, antibacterial activity, irritation

CLC Number: 

  • TQ658