Those with sensitive gums will find Weleda's Plant Gel Toothpaste to be a relief. Gentle and soothing, it still effectively cleans the teeth, and the taste is difficult to beat with a combination of lively mint and fresh lemon.
 

Ingredients: Glycerin, Water (Aqua), Hydrated Silica, Chamomilla Recutita (Matricaria), Krameria Triandra, Commiphora Myrrha, Mentha Viridis (Spearmint), Mentha Piperita (Peppermint), Foeniculum Vulgare (Fennel), Algin, Alcohol, Esculin, Limonene*.

* from natural essential oils