Advances in Bioscience and Biotechnology, 2020, 11, 111-122 https://www.scirp.org/journal/abb ISSN Online: 2156-8502 ISSN Print: 2156-8456 DOI: 10.4236/abb.2020.114009 Apr. 22, 2020 111 Advances in Bioscience and Biotechnology The Effect of Sunscreens on Yeast to Prevent Ultraviolet Damage Tomather Alhamdy 1 , Noorah Saleh Al-Sowayan 2* 1 Department of Biology, College of Science, Qassim University, Buraydah, KSA 2 Department of Biology, Faculty of Science, Qassim University, Buraydah, KSA Abstract The impacts of Ultraviolet (UV) radiation on the human body have received increased attention in previous years. The impacts are comprised of a series of illnesses, burns, and modifications in the genetic structures. Therefore, the current study aimed to identify the effect of sunscreens on yeast to prevent ultraviolet damage. The study uses two sunscreens with different sun protec- tion factors to show how they differently protect the cells from the wrath of UV light. The experiment involves the use of yeast as the test organism since yeast has DNA that is used for reproduction by budding. UV light affects the growth of the bacteria and the limiting factor with the sunscreens. Six Petri dishes with agar were inoculated with yeast solution and put under different conditions and the growth results will be obtained. The experiment also showed how different clothes protect human from the UV radiations. Keywords Sunscreen, Ultraviolet Damage, Ultraviolet Radiations, Yeast 1. Introduction The sun emits long wavelength radiation in form of visible and invisible light. The invisible light houses the ultra violet light which can be classified in three types: UVA, UVB and UVC. UVA is not absorbed by the ozone layer and there- fore it directly comes to the troposphere; it penetrates on the skin cells causing premature aging of the skin and affects the immunity. UVD is absorbed partially by ozone its responsible of DNA damage which leads to squamous cell carcino- ma as well cell as cell apoptosis evidenced by the peeling of the skin after UV exposure. UVC is completely absorbed by the ozone layer. The negative impacts of these radiations can be minimised by using sun- How to cite this paper: Alhamdy, T. and Al-Sowayan, N.S. (2020) The Effect of Sun- screens on Yeast to Prevent Ultraviolet Dam- age. Advances in Bioscience and Biotech- nology, 11, 111-122. https://doi.org/10.4236/abb.2020.114009 Received: March 10, 2020 Accepted: April 19, 2020 Published: April 22, 2020 Copyright © 2020 by author(s) and Scientific Research Publishing Inc. This work is licensed under the Creative Commons Attribution International License (CC BY 4.0). http://creativecommons.org/licenses/by/4.0/ Open Access