No. This product is not soy free as it lists 3 ingredients that contain soy.

Is ISO 100 Hydrolyzed Protein Powder 100% Whey Protein Isolate Soy Free?

No. This product is not soy free as it lists 3 ingredients that contain soy.
Soy Free? ISO 100 Hydrolyzed Protein Powder 100% Whey Protein Isolate | Spoonful