Historical clue formulations

• Crest alternative — 2011-10-12
• Toothpaste brand once advertised as having the secret ingredient GL-70 — 2011-07-24
• Toothpaste with "green sparkles" — 2010-07-06
• Colgate alternative — 2007-12-19
• Procter & Gamble brand — 2006-10-26
• Aquafresh alternative — 2000-10-29