L-Arginine (base)
200 mg per capsule
The amino acid the body converts into nitric oxide, which widens blood vessels so more oxygen reaches brain tissue.
Blood flow
L-Arginine AKG 2:1 Extract
200 mg per capsule
Arginine bound to alpha-ketoglutarate, studied for better absorption and a slower release through the day.
Lasting focus
L-Citrulline HCL
100 mg per capsule
Recycled back into arginine inside the body, keeping nitric oxide production going between doses.
Circulation
L-Citrulline Malate
100 mg per capsule
Citrulline paired with malate, part of the cell's energy cycle, tied to less of the heavy-headed feeling at day's end.
Brain fatigue
Niacin (Vitamin B3)
7.5 mg NE (47% DV) per capsule
Needed to make NAD+, the molecule that powers energy production inside every neuron. Supports small-vessel circulation.
Brain energy
Beta-Alanine
40 mg per capsule
Raises carnosine, a natural antioxidant that helps protect neurons from everyday wear.
Neuron protection
Straight from the label
| Ingredient | Per capsule |
|---|---|
| Niacin | 7.5 mg NE (47% DV) |
| Calcium (as calcium carbonate) | 18 mg (1.5% DV) |
| L-Arginine (base) | 200 mg |
| L-Arginine AKG 2:1 Extract | 200 mg |
| L-Citrulline HCL | 100 mg |
| L-Citrulline Malate | 100 mg |
| Beta Alanine | 40 mg |
Serving size 1 capsule, 30 servings per container. Other ingredients: hypromellose (vegetable capsule), vegetable stearate, silicon dioxide.
How the six fit together
Four of the six are about nitric oxide and blood flow: two forms of arginine (fast and slow) and two forms of citrulline (recycled back into arginine). Niacin covers the energy brain cells need, and beta-alanine covers protection. Read the full mechanism on the how it works page.
A note on amounts
The arginine and citrulline amounts in Memoclear (600 mg combined) are lower than the 3 to 6 gram doses used in most blood-pressure and exercise trials. That is common for once-a-day capsules, and it is why we describe the formula as gradual daily support rather than a strong single dose. Judge it over weeks.
Interactions at a glance
| Ingredient | Talk to your doctor if you take or have |
|---|---|
| L-Arginine, Arginine AKG | Blood pressure medicine, nitrates, ED medicine; recent heart attack; frequent cold sores |
| L-Citrulline HCL, Citrulline Malate | Same nitric-oxide cautions as arginine |
| Niacin | Liver problems, gout, diabetes, low blood pressure |
| Beta-Alanine | Kidney problems |