Hey there! A lot of my patients ask me for links to the products I use. Lots of these are from amazon, and some from other sites. The majority of the links are what's called a referral link, which means that the site will share a small commission with me from my referral of their product. Commissions go straight back into funding the website and the business.
The products I recommend I either have personal and professional experience with. It is absolutely fine for you to simply search the product elsewhere if you feel uncomfortable with it.