Thank you! There are some commercial toothpastes (like Tom's of Maine [1]) and chews (like BasicBites [2]) that contain arginine. I expect we'll see it incorporated in more products soon.

RE: oral probiotics, there is some promising evidence of oral probiotics in improving oral health. We wrote a guide [3] based on the available research that might be helpful.

For lysine, we're still looking into the evidence, but we're excited to see more innovation and research into oral care product ingredients that work with the oral microbiome.

[1] https://www.tomsofmaine.com/our-promise/ingredients/arginine...

[2] https://www.basicbites.com/

[3] https://www.bristlehealth.com/post/a-guide-to-oral-probiotic...

Is arginine necessary to apply topically to the teeth, or can it just be ingested? If the latter, you can get l-arginine supplements easily. They are also supposed to help with certain, um, circulation issues.

Also, xylitol is a great biofilm disrupter. Chewing xylitol gum has been shown to be beneficial in preventing carries.

Its difficult to find Xylitol gum that uses traditional tree sap and not plastic resin (and also doesn't contain added sugar). Any suggestions?

Xylichew uses birch and beech resin and has a gum base free of plastic.

To ensure I get an effective amount of xylitol, I use crystals in my tea and coffee. My child eats them with a spoon. Health Garden is one of the brands that uses birch xylitol.

Just mixing up Xylitol in water and swishing around is good too

How much is effective? My dentist recommended it ages ago and I kind of forgot about it.

Also, any health concerns with consuming xylitol?

For dental caries, 6-10 grams per day [1]. Most adults can tolerate 40g.

Diarrhea is a concern at 45g for children and 100g for adults. If you introduce it gradually into your diet, it should not be a problem.

1. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4232036/

Health concerns for humans is potential digestive issues at high amounts (many tends of grams). Health concerns for canines is prolonged excruciating death due to live failure in rather small amounts. Don't let your dogs near xylitol.