Hope this helps...it is available elsewhere as well, do a search on Non China vitamin C. I like Health Ranger because he has a lab and independently tests the products he sells, so you know what you are getting. I got really sick one time from Garden Of Life products, he found out there were tons of heavy metals in their "organic rice" products. They were more angry at Mike Adams or reporting it, then China for selling it.

Needless to say, sometimes the price is higher at Health Ranger, but at least I won't be poisoned to death...

~Bonnie

https://www.healthrangerstore.com/collections/nutrition-rescue/products/health-rangers-nutrition-rescue-non-gmo-vitamin-c-powder-125-grams

The Health Ranger's Nutrition Rescue Non-GMO Vitamin C (Ascorbic Acid) is a highly bioavailable form of premium Vitamin C in a powder form with a tart, tangy taste. 100% CHINA-FREE! It is sourced entirely from non-GMO origins and manufactured in the United Kingdom under exhaustive standards for purity and safety. Use it in fruit smoothies or dissolve in water to add a purified form of Vitamin C to your diet.

Our vitamin C is created through a natural, non-GMO process of fermentation and synthesis that starts with plants as the originating source of raw materials. The entire process is 100% non-GMO. The type of vitamin C "synthesis" used in our product is a completely natural process that's also followed by plants which produce their own vitamin C. "Synthesis" means to combine from different parts to create something new. This is exactly what plants do.

: Hi, mroxygen -

: Most products I've found derived from natural sources say how
: much source material is in there but not how that equates
: to grams of C. Do you know of more suitable products...?

: --hobie