Dietary water affects human skin hydration and biomechanics. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4529263/. Accessed September 15, 2022
The Truth About Beauty Sleep. https://www.webmd.com/beauty/features/beauty-sleep#:~:text=Skin%20makes%20new%20collagen%20when,lines%20as%20sleeping%207%20would. Accessed September 15, 2022
Wrinkles. https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/wrinkles. Accessed September 15, 2022
Skin care: 5 tips for healthy skin. https://www.mayoclinic.org/healthy-lifestyle/adult-health/in-depth/skin-care/art-20048237. Accessed September 15, 2022
Is it true that smoking causes wrinkles?. https://www.mayoclinic.org/healthy-lifestyle/quit-smoking/expert-answers/smoking/faq-20058153#:~:text=Nicotine%2C%20other%20chemicals%20in%20cigarettes,and%20nutrients%20to%20skin%20cells. Accessed September 15, 2022
Ultraviolet (UV) Radiation. https://www.cancer.org/healthy/cancer-causes/radiation-exposure/uv-radiation.html#:~:text=Exposure%20to%20UV%20rays%20can,to%20become%20inflamed%20or%20burned. Accessed September 15, 2022
Dietary nutrient intakes and skin-aging appearance among middle-aged American women. https://pubmed.ncbi.nlm.nih.gov/17921406/. Accessed September 15, 2022
A Review of Advancement on Influencing Factors of Acne: An Emphasis on Environment Characteristics. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7527424/. Accessed September 15, 2022