Life Extension
Optimized Quercetin 250 mg
Other Combinations60 servings
1 of 2 actives reach a studied dose, 1 falls short.
No dose reference yet for Optimized Food Blend (scoped out of the answer, not counted against it).
Dose 1 of 2 reach a studied dose
How to takeDirections: Take one (1) capsule once or twice daily, or as recommended by a healthcare practitioner.
- Gluten Free
How it scores
Does the dose do anything?
-
Vitamin C
Below the studied range0.06 g / day studies used 0.1-2.5 g · 19 studies
-
Quercetin
At the studied dose0.5 g / day studies used 0.04-3.54 g · 34 studies
-
Camu Camu Berry Extract
Meets the daily target120 mg / day 33% of the Daily Value
Each blend lists its ingredients but not how the total splits between them, so no single active's dose can be checked against the studies. We won't guess.
- Optimized Food Blendamount hidden
What it's studied for
- Focus staminaA
Hold focus through repetitive work
Attention & executive function
- Membrane oxidationC
Protect cell membrane fats
Inflammation & oxidative stress
- Pain intensityB
Feel less intense pain
Pain
- Memory across tasksA
Recall information across tasks
Memory & learning
- Respiratory illnessA
Prevent acute respiratory infections
Respiratory
What's in it
Serving size 1 Vegetarian Capsule(s)
- Vitamin C as Ascorbic Acid, Camu Camu Berry Extract 30 mg 33%
- Quercetin as Quercetin Dihydrate 250 mg -
- Optimized Food Blend 210 mg -
- Bitter Orange Bioflavonoids as Bitter Orange, Bitter Orange - -
- Apple fruit extract - -
- Onion bulb extract - -
- Camu Camu Berry Extract 60 mg -
Other ingredients
A few additives worth noting in the inactive ingredients.
- Microcrystalline Cellulose: bulking agent
- Cellulose: coating polymer; inert
- Maltodextrin: cheap filler; ok in probiotics
- Silica: flow agent; inert but filler
- Stearate
Reported interactions
- Interacts with:
- Digoxin ·Bortezomib ·Doxorubicin ·Tacrolimus ·Carbamazepine ·Antidepressants ·Antipsychotics ·Selexipag
- Side effects:
- Acute kidney injury ·Nausea ·Vomiting ·Diarrhea ·Abdominal pain ·Headache
From research databases. Not medical advice — talk to your physician.
Life Extension
90/100Life Extension's quality posture is strong on testing and transparency, but a 2017 FDA warning letter limits a full trust endorsement.
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- ✓ Third-party tested
- ✓ Effective dosing
- ✓ Premium ingredients
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