You're getting 300mg of **maritime pine bark extract** in one daily capsule — above the 50–200mg range used across clinical trials. At this dose you're fully covered for what this ingredient is studied for: improving venous circulation and leg-vein function, supporting skin elasticity and UV resistance, and helping manage blood glucose.
The extract is standardized to at least 95% proanthocyanidins — the procyanidin compounds behind its antioxidant and anti-inflammatory activity — so what you're taking is a concentrated, consistent active fraction. One capsule a day keeps your dosing simple, with nothing else to track.
Worth knowing: most of the 100-plus published studies on pine bark used a specific French maritime pine extract standardized to 65–75% procyanidins, so the deepest evidence sits with that particular form rather than pine bark broadly. Those trials dosed 50–200mg, and your single 300mg capsule clears that range with room to spare.
BioStacks
Other Ingredients (4)
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
HypromelloseCapsule
Plant-derived capsule material from cellulose
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
How to Take It
Take it anytime
Timing doesn't matter for this one — taking it consistently does.
With or without food
On the label
Suggested Use: As a dietary supplement, take 1 capsule daily with 8-12 oz of water or as directed by your healthcare professional.
General guidance based on the ingredients, not a substitute for the label or your doctor.
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Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from the NIH Office of Dietary Supplements and the National Academies Dietary Reference Intakes (DRI).
This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.
The score analyzes what's on the label: ingredient doses vs. studied ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.