Tylactin Restore Powder, Berry, 73 Calories Per Packet. Tylactin RESTORE Powder Berry is for use in the dietary management of tyrosinemia in people ages one year and older. Tylactin RESTORE Powder is intended for those ages 1 year and older who are under medical supervision for proven TYR. Protein in prescribed amounts must be supplemented to completely meet phenylalanine requirements. Work with your metabolic clinician to determine the daily protein intake (number of grams) you will use per day. Always use RESTORE Powder as directed by your physician or dietitian.