Natural Sea Sponges Or Synthetic Menstrual Sponges? MadLettuce Marketing 4 years ago Which Is Best, Natural Sea Sponges Or Synthetic Menstrual Sponges? Natural sponges, of course! If you believe that menstrual sponges are the right choice for you and you’ve investigated the health aspects, benefits and risks, we recommend the Natural Intimacy brand of IntimateCare sea sponges. Check them out through these paid #ad links:Amazon in the UK – Amazon in Australia – Amazon in Canada – Amazon in USA Amazon in Germany – Amazon in Spain – Amazon in France – Amazon in Italy As an Amazon Associate we earn from qualifying purchases.