This is the most extensive scientific study ever published comparing the two. (sciencedaily.com)
Build Muscle Faster — 1 Scoop of JayLab Pro Protein contains 2.5 grams of the essential amino acid Leucine, shown in extensive scientific studies to be responsible for activating protein synthesis and muscle growth at the DNA level. (strengthtrainingendeavors.com)
Oil pulling seems to be a practice with a plethora of anecdotal support but a lack of extensive scientific studies (though there are some... see below). (wellnessmama.com)