Dependents earn points and rewards through the Beam Perks program the same way as primary members by brushing and syncing the brush with the Beam mobile app. Dependents do not have their own login credentials for the mobile app. In order to redeem rewards for a dependent, the primary will log into the mobile app, change the user to the dependent (using the drop down in the upper left corner) and proceed with redemption on the 'Shop' tab.
Please note that the point balance is specific to each member; the points balance for the primary is not combined with the point balance for any other members of the family.
Full program Terms and Conditions are here.