Source: https://www.amazon.com/Proraso-Shaving-Soap-Refreshing-Toning/product-reviews/B00837YY18/ref=as_li_ss_tl?ie=UTF8&reviewerType=all_reviews&linkCode=sl2&tag=primandprep-20&linkId=1164e12ec4d78f84ccc072a105394211