BASF Personal Care. (n.d.). The skin's own protection. Retrieved June 10, 2025, from https://www.personal-care.basf.com/core-competencies/alles-%C3%BCber-sonne/haut-hauttypen/der-eigenschutz-der-haut
BASF Personal Care. (n.d.). What exactly is this SPF/LSF & Co. Retrieved June 10, 2025, from https://www.personal-care.basf.com/core-competencies/alles-%C3%BCber-sonne/sonnenschutz/was-genau-ist-dieses-spf-lsf-co
Federal Office for Radiation Protection (BfS). (2025). UV protection with sunscreen. Retrieved May 19, 2025, from https://www.bfs.de/EN/topics/opt/uv/protection/sunscreen/sunscreen_node.html
Federal Office for Radiation Protection (BfS). (n.d.). Disinfection with UV-C radiation. Retrieved June 4, 2025, from https://www.bfs.de/DE/themen/opt/anwendung-alltag-technik/uv/uv-c-strahlung/uv-c-desinfektion_node.html
Federal Office of Consumer Protection and Food Safety (BVL). (n.d.). Sunscreen products - requirements and labeling. Retrieved June 04, 2025, from https://www.bvl.bund.de/DE/Arbeitsbereiche/03_Verbraucherprodukte/02_Verbraucher/03_Kosmetik/06_Sonnenschutzmittel/bgs_kosmetik_sonnenschutzmittel_node.html
Busch, L., Kröger, M., Zamudio Díaz, D. F., Schleusener, J., Lohan, S. B., Ma, J., Witzel, C., Keck, C. M., & Meinke, M. C. (2023). Far-UVC- and UVB-induced DNA damage depending on skin type. Experimental Dermatology, 32(9), 1582-1587.
Callewaert, C., Ravard Helffer, K., & Lebaron, P. (2020). Skin microbiome and its interplay with the environment. American Journal of Clinical Dermatology, 21(Suppl 1), 4-11.
Fajuyigbe, D., & Verschoore, M. (2021). Sun exposure and Black skin. In Current Problems in Dermatology (Vol. 55, pp. 62-71).
Fitzpatrick, T. B. (1988). The validity and practicality of sun-reactive skin types I through VI. Archives of Dermatology, 124(6), 869-871.
Gupta, V., & Sharma, V. K. (2019). Skin typing: Fitzpatrick grading and others. Clinics in Dermatology, 37(5), 430-436.
Jayabalan, R., Malbaša, R. V., Lončar, E. S., Vitas, J. S., & Sathishkumar, M. (2014). A review of kombucha tea—Microbiology, composition, fermentation, beneficial effects, toxicity, and tea fungus. Comprehensive Reviews in Food Science and Food Safety, 13(4), 538–550.
Knackstedt, R., Knackstedt, T., & Gatherwright, J. (2020). The role of topical probiotics in skin conditions: A systematic review of animal and human studies. Journal of Dermatological Treatment, 31(4), 328–332.
Lim, S. S., Mohammad, T. F., Kohli, I., Hamzavi, I., & Rodrigues, M. (2023). Optimization of skin phototype classification. Pigment Cell & Melanoma Research, 36(6), 468-471.
Masaki, Hitoshi (2010). The Role of Antioxidants in the Skin: Anti-Aging Effects. Journal of Dermatological Science, 58(2), 85–90.
Neale, R. E., Khan, S. R., Lucas, R. M., Waterhouse, M., Whiteman, D. C., & Olsen, C. M. (2019). The effect of sunscreen on vitamin D: A review. British Journal of Dermatology, 181(5), 907-915.
Nizioł-Łukaszewska, Z., Ziemlewska, A., Zagórska-Dziok, M., Mokrzyńska, A., Wójciak, M., & Sowa, I. (2025). Apiaceae bioferments obtained by fermentation with kombucha as an important source of active substances for skin care. Molecules, 30, 983.
Packer, L., & Valacchi, G. (2002). Antioxidants and the skin's response to oxidative stress. Free Radical Biology and Medicine, 33(5), 571–582.
Papakonstantinou, E., Roth, M., & Karakiulakis, G. (2012). Hyaluronic acid: A key molecule in skin aging. Dermato-Endocrinology, 4(3), 253–258.
Rinnerthaler, M., Bischof, J., Streubel, M. K., Trost, A., & Richter, K. (2015). Oxidative stress in aging human skin. Biomolecules, 5(2), 545–589.
Rittié, L., & Fisher, G. J. (2015). Natural and sun-induced aging of human skin. Cold Spring Harbor Perspectives in Medicine, 5(1).
Roberts, W. E. (2009). Skin type classification systems old and new. Dermatologic Clinics, 27(4), 529-533.
Shank, R. C., Slaga, T. J., Snyder, P. W., Tilton, S. C., & Panel, P. D. P. (n.d.). Safety assessment of radish root-derived ingredients as used in cosmetics.
Sultana, R., McBain, A. J., & O’Neill, C. A. (2013). Strain-dependent enhancement of tight-junction barrier function in human primary epidermal keratinocytes by Lactobacillus and Bifidobacterium lysates. Applied and Environmental Microbiology, 79(16), 4887–4894.
Tewari, A., Grage, M. M. L., Harrison, G. I., Sarkany, R., & Young, A. R. (2013). UVA1 is skin deep: Molecular and clinical implications. Photochemical & Photobiological Sciences, 12(1), 95-103.
Trevithick, J. R., Xiong, H., Lee, S., Shum, D. T., Sanford, S. E., Karlik, S. J., Norley, C., & Dilworth, G. R. (1992). Topical tocopherol acetate reduces post-UVB, sunburn-associated erythema, edema, and skin sensitivity in hairless mice. Archives of Biochemistry and Biophysics, 296(2), 575–582.