Label guide · 6 min read
Retina ClearTurn the bottle around and find the Supplement Facts box. Somewhere in it you may spot the words "proprietary blend". That phrase is worth a slow read.
It means the maker lists a group of ingredients together and gives one total weight for the group. Ingredients must be listed from most to least by weight. But you do not see the share of each one.
Here is a real case. The Retina Clear label lists a 351 mg blend. Fourteen ingredients sit inside it. If they were equal, each would be about 25 mg. They are almost surely not equal. One might be 100 mg and another 2 mg.
Why care? Because studies use set doses. Lutein was tested at 10 mg a day. Saffron trials used about 20 mg. Without a per-ingredient number, you cannot tell if a capsule is close to any of that.
So what can you do? Write to the seller and ask for the amount of each ingredient. A firm that is proud of its formula usually answers. Also compare with another product that prints every amount.
Blends are not illegal, and they are not always a bad sign. They do make your job harder. Treat them as a question mark, not as proof of anything.
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