1. **Prepare the Gelatin:**
– In a small bowl, sprinkle the gelatin powder over the cold water.
– Let it sit for about 5 minutes to bloom.
– Microwave the bloomed gelatin for about 10-15 seconds until completely dissolved.

2. **Blend the Ingredients:**
– In a blender, combine the sweetened condensed milk, evaporated milk, freshly squeezed lime juice, lime zest, and the dissolved gelatin.
– Blend until smooth and well combined.
3. **Chill the Mousse:**– Pour the mixture into serving glasses or a large bowl.
– Cover and refrigerate for at least 4 hours, or until set and firm.

4. **Serve:**
– Before serving, garnish with additional lime zest if desired.
– Enjoy your refreshing Lime Mousse!

If you have any other specific requests or need further assistance, feel free to ask!