The short answer · Endothelial function
Take pine bark extract for endothelial function. This is the one to buy.
Nutricost, Pine Bark Extract, 180 Capsules (300 mg per Capsule)
4.7· 1,496 ratings· $0.07/serving
Pine Bark Extract 300 mg — higher than the studied 100-200 mg window
Of 5,943 products scored for Endothelial function, Nutricost, Pine Bark Extract, 180 Capsules (300 mg per Capsule) ranks #1 with a DoseRank score of 85. Pine Bark Extract is the strongest evidence signal for this outcome.
Retailer links may be affiliate links. Rankings and placement are never paid.
The form“Why Pine Bark Extract — not Arginine Nitrate or L-Citrulline?”Evidence Strong evidence
Pine Bark Extract is the strongest evidence signal for this outcome.
- Pine Bark ExtractThe pick
Strong evidence · 300 mg
Oligomeric proanthocyanidin-rich extract from maritime pine bark; antioxidant with studied support for circulation, endothelial function, and cognitive blood flow.
- Arginine Nitrate
Limited evidence · 1000 mg
Combination of L-arginine bonded to nitrate; supplies nitric oxide precursors via dual pathways, used in pre-workouts for vasodilation and pump.
- L-Citrulline
Moderate evidence · 1500 mg
Non-essential amino acid and the most efficient precursor to arginine and nitric oxide; raises plasma arginine more than arginine itself, supporting exercise blood flow.
The dose“Is the dose actually effective?”Dose fit 91
Pine Bark Extract at 300 mg is higher than the studied 100-200 mg window.
Pine Bark Extract
Studied window 100-200 mg · this pick 300 mg
The ranking“Why should I trust this pick?”Trust 79
Solid trust signals from buyer ratings, with room to grow. Each product gets a DoseRank score blending clinical strength, evidence, dose fit, trust and value. Retailer links may be affiliate links — the scoring model decides placement, never payment from a brand.
- 5,943 products scored
- Never paid placement
- Evidence level: Strong · 92
- 463 brands
- 30 ingredients
The price“Can I do better than $0.07 a serving?”Value 89
$0.07 per serving — low price tier for this outcome. Nothing else in this ranking costs less per serving.
Ready?
The #1 pick is $0.07 a serving.Nutricost, Pine Bark Extract, 180 Capsules (300 mg per Capsule) — in stock at a tracked retailer.
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Nutricost, Pine Bark Extract, 180 Capsules (300 mg per Capsule) ranks #1 for Endothelial function with a DoseRank score of 85. The score blends clinical strength, evidence, dose fit, trust signals and value across 5,943 products scored for this outcome.
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