Emran T, Chowdhury NI, Sarker M, Bepari AK, Hossain M, Rahman GMS, Reza HM, Elsevier Masson (2021) L-carnitine protects cardiac damage by reducing oxidative stress and inflammatory response via inhibition of tumor necrosis factor-alpha and interleukin-1beta against isoproterenol-induced myocardial infarction
The simple fact that they cannot measure your exact skin type (it is very difficult as you would need a sort of photometry device done in a dedicated laboratory) and easily understand your goal (that is by definition very subjective) does not help
Keep a close watch on your dog to note any abnormal responses when using it
The public is not aware of this for the most part
Nonetheless, there is an ongoing debate over the causative relationship between TMAO and cardiovascular disease, as certain studies have found no connection