Here is the ingredient list from Similac: Skim milk, lactose, high oleic sunflower oil, soy oil, coconut oil, whey protein concentrate, potassium citrate, whey protein hydrolysate, calcium carbonate, soy lecithin, ascorbic acid, choline bitartrate, magnesium chloride, sodium chloride, potassium chloride, ferrous sulphate, taurine, L-tryptophan, m-inositol, cytidine 5'-monophosphate, ascorbyl palmitate, disodium guanosine 5'-monophosphate, disodium uridine 5'-monophosphate, zinc sulphate, adenosine 5'-monophosphate, d-α-tocopheryl acetate, mixed tocopherols, niacinamide, L-carnitine, d-calcium pantothenate, vitamin A palmitate, cupric sulphate, thiamine hydrochloride, pyridoxine hydrochloride, riboflavin, manganese sulphate, ß-carotene, folic acid, potassium iodide, phylloquinone, biotin, sodium selenate, vitamin D3, cyanocobalamin.

How to make this at home? You can’t! And bearing in mind that even this complicated formulation is already significantly lacking in what human milk contains. It’s kind of odd that I of all people am vigorously upholding commercial formula, because I never considered using it for my babies, and would not have unless I could not nurse or obtain donor milk.