Airborne has splenda and acesulfame potassium, both of which are neurotoxins. I cannot recommend anyone take this product. Airborne is 49 cents a packet.

Emergen-C has no MSG, aspartame or neurotoxins. Their fructose is not from corn. Nonetheless, the company cannot claim their product is GMO (genetically modified) free. Emergen-C is around 50 cents a packet.

For quick (non-GMO) Vitamin C, I mix up 1000 mg of Vitamin C crystals for about 7 cents.

We carry now Vitamin C crystals at the clinic.