Place lemon juice, water and lemon collagen in saucepan.
Sprinkle 2 tablespoons of gelatin onto the lemon water and whisk the mixture. Leave to sit for 2 minutes.
Heat the lemon water mixture for about 5 minutes over medium-low heat until the gelatin and collagen is completely dissolved. Do not let boil. If you bring gelatin to a full boil, it will never set.
Stir in the stevia glycerite and taste. Adjust sweetness to your liking (adding more stevia glycerite if desired).
Transfer the mixture to a glass dish or jello mold immediately.
Place in the refrigerator and chill for about 3-4 hours until completely set.