Can children use the shampoo bar? 16 January 2023 18:38 Updated Our shampoo bar has been tested for use on adult hair only. Related articles Does a shampoo bar work as well as liquid shampoo? How long will the bar last? How can I travel with a shampoo bar? Is the soap suitable for dry or sensitive skin? Are the shampoo bars natural? Comments 0 comments Please sign in to leave a comment.