JupYeah 執嘢 : 「原來一般的牙膏包裝含鋁，故不能回收，塑膠又需要 450 年分解。」
此外，牙膏內的氟化物（fluoride）是種具爭議性的物質，曾有文章指出其毒性會導致癌症、傷害神經系統、甚至令牙齒和骨骼變得更脆弱。其實科學界天天有新研究發現，我們不能樣樣聽從，但如果你真的害怕了，可以考慮Micro Carbon Operation 微碳行動 分享的自製牙膏試試看。
If you’re sick of fluoride based toothpaste, who can blame you?
Fluoride is widely touted to protect our teeth, but it’s actually a poisonous chemical that causes cancer, damages our nervous system, and even creates weak teeth and bones. Fluoride is common in rat poison and the Nazis used to put it in the prisoners’ water – because it’s known to placate people and make them easier to control. Knowing this – if you haven’t already done so – it’s probably time to dump your fluoride toothpaste. There are certainly many brands of fluoride-free toothpaste available at your local health food store or almost as easy, and likely better for you, you can just make your own.