Check out this article by The Telegraph which confirms that barred soap is making a comeback “amid a major consumer backlash against unnecessary plastic waste, as households are searching for more eco-friendly versions of everyday items like bags for life instead of plastic carriers, reusable coffee cups instead of paper ones, loose fruit and vegetables instead of those wrapped in plastic, and now bars of soap instead of plastic pumpers”.
Read the full article here https://www.telegraph.co.uk/news/2019/01/06/barred-soap-back-brits-avoid-plastic-bottles/