The base of all the product are referred to as a tri-blend formula, Powder/Gel/Cream or some verbal variation of that. In other words but yes the same formula used in all of these products from different brands coming out from Italy with very minor differences in the ingredient list for the face products and shadows.
I'll list the key ingredients tonight in all these product to look out for when spotting the formulation, for online reference because in person they all behave the same. lol I just say the this will not become a niche product very soon but so far MAC has the best bang for your buck.
I just want more colour options!