- Include step 1 (0-6 months), step 2 (6-12 months), step 3 (1-2 years), step 4 (2-6 years).  - 6 HMOs & soluble fibers (FOS, GOS).  - 2 billion BB-12™ & LGG™ probiotics.  - Whey protein rich in alpha-Lactalbumin.  - Vitamin D3, K2 & Calcium for growth.  - DHA, ARA, Choline, Taurine, Lutein for brain development.