Aww, mahirap talaga pag may milk allergies ang baby, sending you hugs kasi I know how stressful that is! Just a heads up though, the expiration date has already passed (Oct 2023), so I wouldn't recommend buying this for safety reasons, lalo na sa babies whose tummies are already sensitive. Hope your son finds the perfect hypoallergenic formula soon, a few of us here switched to different brands and it made such a difference!