by A. Boy
For the latest June 2020 edition of Stiftung Warentest’s “test” magazine, the magazine’s editors examined eight liquid shampoos, six solid shampoos and four hair soaps from the fields of conventional cosmetics and natural cosmetics. During this process, they based their assessment on the following criteria: Care properties, application, packaging, declarations and advertising claims. The hair soap made by Speick came out of the test with a rating of “good”.
Only one other hair soap achieved a rating of “good”, with two others achieving “satisfactory”.