I purchased a vitamin c supplement that was pure white and odorless/tasteless. I posted a review and photos. Obviously fake filler of some sort, Amazon removed my review as inaccurate when it's obvious whatever was in those capsules was not ascorbic acid of any kind.
They also claimed to have zinc (greenish) and elderberry (purple). It's not safe for Amazon to let any random exporter put stuff for sale without any sanity checks.