The short answer · Platelet function
Take pine bark extract for platelet function. This is the one to buy.

Nutricost, Pine Bark Extract, 180 Capsules (300 mg per Capsule)
4.7· 1,704 ratings· $0.08/serving
Pine Bark Extract 300 mg — higher than the studied 100-200 mg window
Of 229 products scored for Platelet function, Nutricost, Pine Bark Extract, 180 Capsules (300 mg per Capsule) ranks #1 with a DoseRank score of 53. Pine Bark Extract has moderate human evidence for this outcome.
Retailer links may be affiliate links. Rankings and placement are never paid.
The form“Why Pine Bark Extract — not Hydroxytyrosol?”Evidence Moderate evidence
Pine Bark Extract has moderate human evidence for this outcome.
- Pine Bark ExtractThe pick
Moderate evidence · 300 mg
Oligomeric proanthocyanidin-rich extract from maritime pine bark; antioxidant with studied support for circulation, endothelial function, and cognitive blood flow.
- Hydroxytyrosol
Limited evidence · 25 mg
Polyphenol from olive oil and olive leaf; potent antioxidant and anti-inflammatory with cardiovascular and neuroprotective research interest.
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 81
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.
- 229 products scored
- Never paid placement
- Evidence level: Moderate · 78
- 70 brands
- 4 ingredients
The price“Can I do better than $0.08 a serving?”Value 92
$0.08 per serving — low price tier for this outcome. Nothing else in this ranking costs less per serving.
Ready?
The #1 pick is $0.08 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 Platelet function with a DoseRank score of 53. The score blends clinical strength, evidence, dose fit, trust signals and value across 229 products scored for this outcome.
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