The best! Im so glad I bought this Vitamin D. The main appeal was that it was mushroom derived and included other minerals as well as Magnesium which is required to be able to absorb the Vitamin D. It has worked wonders and I can definitely notice a difference if I forget to take it in the morning. I will be buying this product for life...im not even exagerating.

Absolutely the best products ever!! Delivery is fast, never an issue. Love the silver, its very effective for humans and dogs, We take it twice a day to keep our immune system running smooth. Love the throat drops, The lotion and jell works really good too for any skin condition. The price is very good.We are in our 70's and we rarely get sick,

Best Supplements EVER! For the record, I am not a review writer. That’s not my thing-but these products have changed my life! I have used them for years now. My immune system deficiency always caused me to have severe illness-a little cold or sniffle always led to secondary infection. I started out using SilverSol at the first sign of a cold and realized it helped with getting me over illness so much quicker. Once I added the Vitamin D-GAME CHANGER!!! No more secondary infections and I usually feel great within a day. ABSOLUTELY NOTHING compares to these products!! Believe me, I have tried many over the years that never worked. Optivida products are the real deal! Don’t forget to get some Silver Gel too! It helps healing cuts, scrapes and burns. LOVE LOVE LOVE the Optivida products!!!!

I couldn’t be more pleased! I couldn’t be more pleased with Optivida’s Silver liquid, gel and lozenges! Our family has successfully treated cuts, scrapes, burns, pink eye, sinus infections, ear infections, strep throat, sore throats, food poisoning, colds, the flu, and even COVID-19. Healing and/or recovery time is always shortened with Optivida’s silver products. Other brands do not compare! We make sure our supply never runs out.

These are absolutely amazing products These are absolutely amazing products. All of them. I can’t say what I like the most, the gel is probably my top followed very closely by the throat lozenges. Super happy someone introduced me to these products!