Prepare the gummy molds by putting them on a baking sheet that will fit in the refrigerator.
Sprinkle the gelatin over the juice and allow it to sit for a few minutes to hydrate.
Warm the rose hip syrup in a pot over low heat, until it is hot but not boiling.
Add the gelatin and juice mixture to the syrup, whisking until completely dissolved.
When the gelatin has completely dissolved, remove the pan from the heat and quickly whisk in the rose hip powder and acerola berry powder (and/or optional vitamin C powder).
Fill the gummy molds using a dropper or by carefully pouring the mixture.
Put the vitamin C gummies into the refrigerator for about an hour or until they are set.
Pop the gummies out of the mold and store in a covered container in the refrigerator for up to 2 weeks.
Notes
If you would like more potent gummies you can use vitamin C powder, but keep that in mind when you go to use them as they will be stronger.
If you are vegetarian or vegan you can use agar agar powder instead of gelatin, but you will need to adjust the amount (read the label on the package).
Instead of using gummy molds, you can also pour the mixture into a parchment lined pan and cut out squares or other shapes after it has set.
Depending on the size of the gummies, take 1-3 per day when you are feeling sick or want to boost immunity. A small child will only need 1-2 gummies per day.
The amount of vitamin C will vary per batch and will depend on the size of the gummies. It is hard to estimate since each powder will have differing amounts and natural sources can vary. For a more accurate estimate I recommend using only vitamin C powder and doing the math based on how many gummies your mold makes.