"Dangers of Synthetic Scents Include Cancer & Kidney Damage" - Dr. Axe (draxe.com) By Annie Price, CHHC November 17, 2016

"The Truth About Fragrance-Free and Scented Beauty Products, According to Derms" By Angelika Pokovba Updated on September 5, 2022; Fact checked by Haley Mades

"Chemicals to avoid - Artificial fragrances, dyes and colors" by SubtleGreen.com

"What To Know About Smell Sensitivities" By Anthea Levi Updated on February 19, 2023; Medically reviewed by Lauren Schlanger, MD

"What Does Paraben-Free Mean in Beauty Products?" Medically reviewed by Cynthia Cobb, DNP, APRN, WHNP-BC, FAANP — By Kathryn Watson on June 16, 2020;

"Position Statement on The Chemical Identity of Fragrances" by AAD American Academy of Dermatology Association (Approved by the Board of Directors: October 24, 1998)

"Unscented bar soap 101 - everything you need to know for healthy skin" by Written By Nature Buff Soap