The purpose of this study is to confirm the hypoallergenicity of an extensively hydrolyzed formula with an added probiotic in children with documented milk allergy.

Inclusion Criteria:

• ≤14 years of age
• Essentially asymptomatic for a minimum of 7 days pre-challenge.
• Successful previous consumption of Extensively Hydrolyzed Formula within 1 week of study enrollment
• Medically documented allergy to cow's milk

Exclusion Criteria:

• Presence of underlying systemic disease or other illness
• Used Beta-blockers within 12-24 hours of challenges
• Use of short-acting antihistamines within 3 days
• Use of medium-acting antihistamines within 7 days
• Use of long-acting antihistamines within 6 weeks
• Use of oral steroid medication within 3 weeks