I am not confident about OTC vitamin D’s quality. I think that most of those are trash, simply.
I often got headaches, sneezing or congested nose from those OTC products. Blood test results were not satisfying and overall effects were null. This finally let me to use it topically...with inconsistent results...the only exception was when I used the Hi-Po Emulsi-D3 from Design for health.... but the product’s price (plus the international shipping’s fees) eventually let me to forget about this method as a long term valuable and economic option.
Then, I was able to get pharmaceutical grade injectable vitamin D. Side effects gone, blood tests results OK. That’s it.
I often got headaches, sneezing or congested nose from those OTC products. Blood test results were not satisfying and overall effects were null. This finally let me to use it topically...with inconsistent results...the only exception was when I used the Hi-Po Emulsi-D3 from Design for health.... but the product’s price (plus the international shipping’s fees) eventually let me to forget about this method as a long term valuable and economic option.
Then, I was able to get pharmaceutical grade injectable vitamin D. Side effects gone, blood tests results OK. That’s it.