| Type | A wild European berry related to the blueberry, high in anthocyanins |
|---|---|
| On the Retina Clear label | Inside the blend; amount not disclosed |
| Strength of evidence | Uneven: night-vision trials disagree with each other |
| Ask a professional first if | You take a blood thinner or medicine for diabetes |
The deep blue color of bilberries comes from plant compounds named anthocyanins, and these are what supplement makers are after.
Retina ClearYou may have heard that Royal Air Force pilots spread bilberry jam on toast to sharpen their night sight. When researchers later tested bilberry under controlled conditions, they did not find a clear effect.
Retina ClearFor most people it causes no problems.
On the Retina Clear label: Inside the blend; amount not disclosed. Weigh that against the amounts used in research before deciding whether the capsule suits your goals.
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Before you decide
Read the label first, then choose your pack
Ask for the blend breakdown, confirm the guarantee length in writing, and book an eye exam if one is due. Then decide with the facts in hand.