I’m not qualified to judge the efficacy based on Scientific facts. My experience was that I took 3,000 mg of these everyday and I didn’t get a cold virus when everyone else around me did. My husband who never gets sick (literally one cold in 14 years) got a cold/virus and I never got it. I started getting him to take it, and his cold is out improving. My very picky daughter doesn’t like the flavor, so I cut them in quarters (they are large tablets) so she can swallow them.<br />Also, the price is the best I have found for a quality Vitamin C chewable.<br />My only critique is that they are a little bitter and acidic, but I think that’s probably because they aren’t loaded with added sugar-so it’s probably a good thing. I just make sure to have a glass of water handy when I take them.<br />I would recommend these to everyone that doesn’t like getting sick.

These were originally shown as 1000MG per the attached photo. However, after I got them home it appeared that they were 500MG pills which a call to their company line confirmed. I won't be buying from Carlyle again.

I bought two brands of vitamin C. These taste terrible. Buy Nature Made chewable. Not only do Carlyle Vitamin C 500 mg taste terrible but you need to chew two of them!

While this vitamin C is a good product in my opinion, the price has increased drastically. The vitamin C tablets are in chewable form. It's slightly sweet and slightly tart, but I've really enjoyed the flavor and for the value at the time of my purchases, thought this was one of the best deals on Amazon. I paid $9.99 for the same size as currently listed, 180 chewable tablets. Now, it is selling for $12.99, a $3 increase, with a list price of $15.28. Supposedly saving you $2.29...that is not true. When I purchased this item, twice over several months, the cost was not a sale price but original price at $9.99. So don't let them make you believe you're getting such a great deal at 15% savings. I'm fed up with Amazon trying to make you feel as though you're getting a deal when there are thousands of verified purchasers who know the original prices of the items they received. Other than that folks, if you like chewable vitamin C tablets, it is worth a try.

As someone who lives near an orange orchard who makes tablets such as this. Sour = low quality or turned.

Looking at the package, I concluded that that these were 1000mg chewables (you know, because it is in the title/description), which did seem big compared to the normal 500, but it looked like a good price/per unit. It also says there's 180 tablets - as others pointed out, these are 500mg and the "fine print" shows a "per serving" number on the packaging. No one shows their unit size like this so...the rating is knocked down. Pretty decent taste in my opinion, though.