This site's own ingredients section addresses this directly: the label groups Bifidobacterium infantis, Clostridium butyricum and Akkermansia muciniphila into one "probiotic blend" without breaking out CFU counts per strain.
CFU, or colony-forming units, is the standard measure of probiotic strength — this site is direct that without a per-strain breakdown, the strength of any single probiotic in this blend cannot be independently confirmed.
Worth weighing this specific gap against the formula's two clearly dosed prebiotic ingredients and its named (if not individually dosed) probiotic strains — a mixed but partially transparent picture.