It is provided a process for obtaining fruit peel juice comprising the steps of:a) Grinding of the fruit peel in an aqueous solution at 30-60 degrees Celsius with a mill comprising a shredding grid that is characterized by having an opening with circular shape from 16 to 20 mm of diameter and a surface area from 201 to 314 mm2 b) Submitting the product of step a) to an enzymatic treatment selected from the group consisting of pectinase, pectinlyase, beta-glucanase, cellulase and combinations thereof c) Separating the liquid phase from the solid phase obtained in step b) d) Sieving the liquid phase obtained in step c) and e) Adding citric acid and ascorbic acid to the liquid phase of step d) f) Pasteurizing the product obtained in step e) by thermal treatmentg) Centrifuging the product obtained in step f) provided that when the fruit is pomegranate, in step e) only citric acid is added and provided that when the fruit is lemon, in step e) no acid is added. The fruit peel juice obtainable by the process, as well as foods, beverages and cosmetic products comprising it are also claimed.