In a medium mixing bowl or liquid measuring cup, combine the plain double fermented kefir and hulled strawberries.
Blend with an immersion blender until strawberries are completely pureed and the kefir is uniform in color. Set aside.
In a stand mixer with a whisk attachment, beat the softened cream cheese until smooth.
Add the Truvia sweetener, and the juice from one large lemon. Beat on medium-low until well combined.
Pour the strawberry-kefir mixture into the cream cheese mixture, and beat on medium-low, stopping to scrape down the sides as needed.
With mixer running on low speed, slowly pour the unflavored powdered gelatin into the cream cheese mixture in the mixing bowl. **If you are using a gelatin other than powdered gelatin, please follow the instructions on the box for dissolving and incorporating into the mix. See note below**.
When the gelatin has been incorporated, turn the mixer up to medium speed and beat for about one minute or until well combined.
Pour the cream cheese layer over the prepared crust. Cover and refrigerate for at least one hour before proceeding with next step.