don't know about other soya formulas but wysoy does not contain SMP
ingredients:
Dried Glucose Syrup, Vegetable Oils, Soya Protein Isolate, Calcium Phosphate, Sodium Citrate, Magnesium Chloride, Potassium Chloride, Emulsifier (Soya Lecithin), Potassium Citrate, L-methionine, Vitamin C, Choline Chloride, Potassium Hydroxide, Potassium Bicarbonate, Taurine, Inositol, Ferrous Sulphate, Zinc Sulphate, L-Carnitine, Vitamin E, Niacin, Pantothenic Acid, Vitamin A, Riboflavin, Thiamin, Copper Sulphate, Vitamin B6, Vitamin D, Folic Acid, Potassium Iodide, Vitamin K, Sodium Selenite, Biotin, Vitamin B12.