When is a good time to start allergen foods?

Sabrina • The Daughter of my Dreams My Rainbow Child, My Everything 🌻PJL 08-10-20🌻

When did you introduce high allergen foods like strawberry’s and peanuts? I’ve seen that there is a product that is like a powder that contains small amounts of possible allergen foods to help introduce baby to them. My daughter is 6 months old I’m not sure if food allergies are genetic but my twin sister is highly allergic to bananas, strawberries and gluten.