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Q: How do you store this and how long can you keep it? I am thinking about making my own vitamin c serum for skin which uses very little bit at a time. The recipe I found calls for 1tsp in 7 tsp of distiller water. Would I use same recipe with your fine powder? I am hoping your fine granule will dissolve faster/bette…

Hello and thank you for your question, this product is good for 3 years in the unopened package. Once it's opened it keeps well if you avoid exposing it to heat, humidity or light. You will know if the product is still good if it stays white. Once the product turns yellow it has become oxidized and has lost it's anti-oxidant properties. It's hard to give a precise amount of time because the humidity and heat factors are so variable. In good conditions I would say easily several months from experience. I've seen it stay white once opened for more than 6 months to a year. A tablespoon is usually 3-4 grams from what's normally commercially available. This powder is much finer so depending on how much it is compressed it could vary but will generally take 50-100% more volume to reach the same weight. So you might want to double the recipe requirements. The best thing would be to weigh it and use 4 grams to meet your 1 tsp requirement. It will definitely dissolve faster and better than anything you've used before.

Q: Can you please show or provide a link of a 3rd party lab certification verifying that the powder is actually non GMO?

The product is certified by the manufacturer with traceability to the farmers and their cornfields. GMOs are not allowed in Scotland where the corn is grown so there is no danger of contamination. I have requested that the manufacturer get in touch with the non gmo verified project to obtain their certification, but you should know that even their recognition is not a test nor guarantee as GMOs are not detectable in the final product. The people that are non GMO project verified have only had their facilities verified and signed a charter stating they take all possible precautions to avoid contamination. You should be weary of proximity of farm lands to GMO crops.

Q: Does this contain magnesium, potassium, or calcium?

Label states "100% pure ascorbic acid" pharmaceutical grade no other ingredients made in the UK.

Q: Does this vitamin C come from black mold or mold in a lab or from Citrus or what?

Hello,The Vitamin C is made from non GMO corn grown in The U.K.. The final product is 100% ascorbic acid and is safe for people with corn allergies.

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How do you store this and how long can you keep it? I am thinking about making my own vitamin c serum for skin which uses very little bit at a time. The recipe I found calls for 1tsp in 7 tsp of distiller water. Would I use same recipe with your fine powder? I am hoping your fine granule will dissolve faster/bette…

Can you please show or provide a link of a 3rd party lab certification verifying that the powder is actually non GMO?

Does this contain magnesium, potassium, or calcium?

Does this vitamin C come from black mold or mold in a lab or from Citrus or what?

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