Botanicals · 7 min read
Retina ClearBotanical names look reassuring on a label. Here is what the research says about three of the fourteen in the Retina Clear blend, with the caution that none of them has an amount printed.
Ginkgo comes from the leaves of an ancient tree and has been studied for a long time, mostly for memory and circulation. A few small eye studies measured blood flow and saw modest changes. The studies were brief, so they cannot tell us what happens over years.
Bilberry is a wild cousin of the blueberry. Its story includes British pilots and jam, yet when scientists tested bilberry under controlled conditions, the results for night vision did not point the same way. Some trials found a small benefit and others found none.
Saffron has some of the more interesting early data. Small trials, many of them from Italy, tested a specific saffron extract, around 20 mg a day, in people with early age-related macular changes. Because the groups were small, the results are promising at best.
Notice a pattern: each of these studies used a defined dose of a particular extract. A blend that shares 351 mg across fourteen ingredients does not let you check whether the capsule reaches anything like those amounts.
There is also a practical matter. Ginkgo and saffron may affect bleeding, and bilberry may interact with diabetes medicine. If you take any prescription, ask your pharmacist before adding a botanical blend.
None of this makes these herbs useless. It means the honest description is that they are interesting, lightly studied, and not proven to do what a bottle might imply.
Keep reading
The 20-20-20 Rule and Other Screen Habits Worth Trying First · Ingredient profiles · FAQ