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Show HN: I invented a caffeinated toothpaste

powertoothpaste.com

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Re: Show HN: I invented a caffeinated toothpaste

#231

Post by femto »

nappy wrote: post #68
zxcvvcxz wrote: post #18

Earlier quoted context omitted.

Quick questions: - What is the approximate equivalent caffeine content for, say, a 2 min morning brush? - Is it available and actually shipping, or am I "pre-ordering"? - No fluoride? Dentists say that's pretty important. Edit - to be clear, really loving the conecpt. I wish more random things had caffeine in them ;)

1) Full disclosure: I haven't run blood tests to figure out exactly how much caffeine you absorb brushing with my toothpaste. Here's what I can tell you: in 1 ml of toothpaste there is just under 80 mg of caffeine. 1 ml is a bit more toothpaste than the pea-sized amount of toothpaste that you should use, but less than the amount you see put on a brush in a toothpaste commercial. You don't swallow toothpaste and brush…

By those numbers the 70 gram tube contains approximately 5-6 grams of caffeine? LD50 level for caffeine is estimated at 200mg/kg of body weight [2], so the tube could kill a 25kg person? I hope that the fresh minty taste isn't too attractive to children, as the lethal dose to a small child looks to be substantially less than one tube.

By comparison, about two (100g?) tubes of fluoridated toothpaste could kill a 10kg (2yr old) child [2], so a child is unlikely to die from scoffing an open tube of toothpaste that they find in the house.

Perhaps you should look at either the caffeine concentration or tube size, to ensure that an incidental poisoning can't occur due to a single open tube.

[1] https://en.wikipedia.org/wiki/Caffeine#Overdose [2] http://health.howstuffworks.com/wellness/oral-care/kids/what...

Re: Show HN: I invented a caffeinated toothpaste

#232

Post by simcop2387 »

infinityplus1 wrote: post #203
DiabloD3 wrote: post #8

Earlier quoted context omitted.

Your website does not contain a list of ingredients, nor do you show photos of your box with government required disclosures on it. You admit that your toothpaste does not have fluoride, but does it contain SLS, propylene glycol, DEA, glycerin, hydrated silica, or artificial sweeteners? If so, please discontinue your product or change your formula. None of those ingredients are safe for use in toothpaste and help cau…

I use Pepsodent and it contains hydrated silica. Why is it not safe?

My guess would be that it's too hard (Mohs scale) and erodes the enamel. Hydrated silica is essentially sand

Re: Show HN: I invented a caffeinated toothpaste

#233

Post by kbart »

Johnny555 wrote: post #211

Do you have warnings on the tube to tell people that the toothpaste is toxic to children? 80 mg of caffeine at 90 "servings" per tube is 7200mg. The LD50 for caffeine is 150mg/kg, so each tube is enough to potentially kill two 20kb toddlers.

"two 20kb toddlers."

Is that a mistype or do you really measure babies in kilobits?

Re: Show HN: I invented a caffeinated toothpaste

#235

Post by Zalastax »

nikolay wrote: post #39

There's no list of ingredients. Anyway, most toothpaste today has glycerin in it, which prevents tooth remineralization. Most toothpaste today also has carrageenan, which also is questionable - including by the WHO. SLS is not without issues either. Most non-natural toothpaste has aluminum. Most natural toothpaste is too abrasive. In general, I wasn't able to find a balanced product all these years - and it's a shame…

Are you sure that glycerin prevents remineralization? Dr. Schau[1] thinks it's unfounded.

[1] http://www.myfamilydentist.ca/glycerin-and-remineralization-...

Re: Show HN: I invented a caffeinated toothpaste

#238

Post by ben_jones »

Caffeinated gum is also a big thing. Same idea I think: passive caffeine consumption with the implication that you'll be saving tons of money that would've been spent in coffee shops. But don't most people want to limit their caffeine consumption?

I feel like caffeine has an identical mindshare as cigarettes in the '60s: Haha we know it's not great for you but everybody does it, especially business people!'.

Not trying to nock your product, it's just whatever I think of when people try to push more caffeine on me. I need more sleep, not more caffeine.

Re: Show HN: I invented a caffeinated toothpaste

#240

Post by clishem »

ben_jones wrote: post #238

Caffeinated gum is also a big thing. Same idea I think: passive caffeine consumption with the implication that you'll be saving tons of money that would've been spent in coffee shops. But don't most people want to limit their caffeine consumption? I feel like caffeine has an identical mindshare as cigarettes in the '60s: Haha we know it's not great for you but everybody does it, especially business people!'. Not tryi…

    we know it's not great for you
[citation needed]
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