RESEARCH
1. DOCTORS research on SLS - Sodium Lauryl Sulfate effects in the oral cavity , https://askthedentist.com/toothpaste-canker-sores/
2. Doctor Mercola O.D. writes about the Black Seed Oil , https://articles.mercola.com/herbal-oils/amp/black-seed-oil.aspx
3. Doctor Mercola O.D. writes about Toxic Ingredients in Toothpaste , https://articles.mercola.com/sites/articles/archive/2015/09/09/amp/toxic-toothpaste-ingredients.aspx