Pycnogenol
Also known as: French maritime pine bark extract, Pinus pinaster extract, Pine bark extract
French maritime pine bark's branded extract — a heavily studied antioxidant with real evidence for circulation, joints, and skin.
In short
Pycnogenol is the trademarked extract of French maritime pine (Pinus pinaster) bark, standardized to procyanidins and other polyphenols. It is among the most extensively researched branded supplements in the world, with trials spanning circulation, osteoarthritis, skin, blood pressure, and attention. The mechanism is broad: procyanidins scavenge free radicals, support endothelial nitric-oxide production, and mildly inhibit enzymes involved in inflammation and collagen breakdown. Effect sizes are generally modest but repeatedly positive — a 2021 umbrella review judged the strongest evidence to be in cardiovascular health, with credible data in osteoarthritis, venous insufficiency, and metabolic outcomes. Safety is excellent, with decades of surveillance data.
- Trademarked extract of French maritime pine bark (Pinus pinaster)
- Standardized to ~65–75% procyanidins
- Strongest evidence: circulation, blood pressure, venous health
- Decades of clinical trials; excellent safety record
What is Pycnogenol?
Pycnogenol is the rare branded ingredient with a research dossier thick enough to matter. Since the 1970s, over a hundred clinical trials have tested French maritime pine bark extract for everything from leg swelling to osteoarthritis to ADHD symptoms — with a consistent theme: modest but measurable improvements wherever microcirculation and oxidative stress play a role. The compound's elegance is its simplicity: a concentrated cocktail of procyanidins that supports the endothelium's nitric-oxide machinery and calms inflammatory enzymes. It is not a cure for anything, but it is one of the better-documented multi-target antioxidants money can buy.
Where it comes from
Natural sources
- Bark of the French maritime pine, Pinus pinaster, grown in the Landes forest of southwestern France
- Standardized to 65–75% procyanidins; contains phenolic acids and taxifolin
- Traditional use of pine bark decoctions dates to the 1500s (scurvy era)
How it's made
Only one manufacturer (Horphag Research) holds the Pycnogenol trademark; capsules usually 50–100 mg.
What it does in products
Benefits
Circulation and venous health
strong evidenceTrials show reduced leg swelling, improved chronic venous insufficiency symptoms, and fewer cramps; umbrella reviews rate cardiovascular evidence the strongest.
Osteoarthritis
moderate evidenceThree-month trials report reduced pain and improved function, comparable to modest doses of NSAIDs in some comparisons — with fewer side effects.
Blood pressure and metabolic health
moderate evidenceMeta-analyses find small blood-pressure reductions and improved blood sugar control in people with type 2 diabetes.
Skin health
moderate evidenceTrials report improved skin elasticity and hydration and reduced UV-induced pigmentation — plausible via collagen protection.
Side effects & safety
Safety considerations
- Generally well tolerated; one trial used it safely in pregnancy for preeclampsia risk, but standard caution applies — discuss with a clinician.
- Anticoagulants/antiplatelets — mild additive platelet inhibition possible
- Immunosuppressants — antioxidant effects on immune function are theoretical
- Not for: Known pine allergy
How it's used
In supplements
50–150 mg/day; many trials used 100–150 mg/day for 3 months. For circulation outcomes, 150 mg is the common trial dose.
In skincare
Topical use at 0.5–2% in some cosmeceuticals; oral dosing is the studied route.
Regulatory status
- Sold as a dietary supplement; no FDA-approved disease claims.
- Not assessed as a distinct cosmetic ingredient.
Popular products containing Pycnogenol
- Pycnogenol 100 mg (Horphag Research) — The branded original extractPycnogenol · Supplement
- Healthy Origins Pycnogenol — 100 mg capsulesHealthy Origins · Supplement
- Life Extension Pycnogenol — 100 mg standardized capsulesLife Extension · Supplement
Product names and brands are shown for reference and belong to their respective owners.
The evidence landscape
A 2021 umbrella review of meta-analyses rated cardiovascular outcomes (blood pressure, endothelial function) as the most consistent, with supportive data for osteoarthritis, venous insufficiency, diabetes, and cognition. Individual effect sizes are modest — typically a few mmHg of blood pressure — but the consistency across independent labs is unusual for a botanical.
The nitric-oxide connection
Pycnogenol's circulatory effects center on endothelial nitric oxide: procyanidins boost eNOS activity, improving vessel dilation and microcirculation. This single mechanism plausibly explains the spread of positive outcomes from leg swelling to blood pressure to Raynaud-like symptoms.
Frequently asked questions
Is generic pine bark extract the same as Pycnogenol?
Not necessarily — Pycnogenol's standardization (65–75% procyanidins) and species source are specific. Generic Pinus extracts may differ in composition and lack the trial data.
How long until I notice effects?
Most trials run 4–12 weeks. Circulation symptoms (leg heaviness) may improve within weeks; joint and skin outcomes take longer.
Can Pycnogenol replace blood pressure medication?
No — it can modestly support healthy pressure alongside lifestyle and prescribed care, but it is not a substitute for antihypertensive therapy.
The bottom line
Pycnogenol is a benchmark example of a well-studied branded botanical: modest, reproducible benefits across circulation, joints, and skin, backed by decades of trials and an excellent safety record.
References
- Pycnogenol: overview of clinical evidence. PubMed Central. https://pubmed.ncbi.nlm.nih.gov/31390642/
- Pycnogenol for hypertension: meta-analysis. Phytotherapy Research. https://pubmed.ncbi.nlm.nih.gov/28854194/
- Pycnogenol in osteoarthritis. PubMed. https://pubmed.ncbi.nlm.nih.gov/18417066/