About the costs of Vitamin D3, please note that there are at least three types of VD3 in the market:
Pharma-grade;
Food-grade;
Feed-grade,
Different grades have different prices, which is obvious.
But how do you tell the differences between each grade?
Say if I have 3 bags of white powders on the table without any labels of course, are you able to tell which is what?
If you can not, here is the trick: choose the fine crystals with the whitest color, it is pharma-grade.
Food grade and feed grade have white and off-white or even light yellow color.
The color difference is caused by the impurity control during the manufacturing process.
Pharm-grade has high-quality standards, activity is required to be over 40Million IU/G, the market price is around 5000USD per kilo.
When we say pharm-grade, it means this API is GMP-certified.
Or even if it is 98% purity meeting USP, it is still food-grade.
Food-Grade: 1Million IU/G, the price idea is around 60~100USD/kg.
Feed-Grade: 100,000IU/G~500,000IU/G, price is around 15~30USD/kg.
We mainly stock 98% type VD3 powder, with or without GMP, please note.