Educational information, not medical advice.See how evidence is graded

Proanthocyanidins (as Pycnogenol)

Best studied for: Circulation and leg swelling; Blood pressure support; Skin health and aging. Best known for improving circulation, reducing inflammation.

Home

What is proanthocyanidins (as Pycnogenol)? Proanthocyanidins (as Pycnogenol) is a type of flavonoid antioxidant found in various plants, including pine bark and grape seed. It is commonly used as a dietary supplement to support various aspects of health and wellness. How does it work? Proanthocyanidins (as Pycnogenol) works by providing antioxidant support and promoting healthy circulation, among other effects. What are the active ingredients that are important for its medicinal properties? The active ingredient in proanthocyanidins (as Pycnogenol) is a type of flavonoid antioxidant known as proanthocyanidins. What forms does it come in? Proanthocyanidins (as Pycnogenol) is available in various forms including capsules, tablets, and liquid extract. When was it first used for medicinal purposes? Proanthocyanidins (as Pycnogenol) has been used for medicinal purposes for decades, with some of the earliest documented uses dating back to the 1960s. Summary: Proanthocyanidins (as Pycnogenol) is a type of flavonoid antioxidant found in various plants, including pine bark and grape seed. It has been used for decades to support various aspects of health and wellness, including healthy circulation, skin health, relief from menopausal symptoms, reducing inflammation, and improving joint and muscle function. It may also help prevent cognitive decline, cardiovascular disease, and free radical damage. Some of the top foods rich in proanthocyanidins (as Pycnogenol) include pine bark, grape seed, red wine, blueberries, and cranberries. A deficiency or imbalance of proanthocyanidins (as Pycnogenol) may lead to increased oxidative stress and decreased antioxidant support. Possible side effects include stomach upset, headache, dizziness, and itching. The recommended daily dose of proanthocyanidins (as Pycnogenol) is between 40-200mg per day, and it may take several days or weeks to see results. It may be taken with or without food, at any time of day as long as it is taken consistently each day. Overall, proanthocyanidins (as Pycnogenol) is generally well-tolerated and can be a helpful supplement for supporting various aspects of health and wellness.

Helps

What does Proanthocyanidins (as Pycnogenol) help with? Poor circulation and leg swelling: Pycnogenol is one of the most studied natural treatments for heavy, swollen legs. It helps tighten and strengthen blood vessel walls, reducing the leakage of fluid into surrounding tissue. People with chronic venous insufficiency consistently report less swelling, leg pain, and nighttime cramps after regular use. High blood pressure: Pycnogenol helps blood vessels relax by boosting nitric oxide production — the same mechanism targeted by some blood pressure medications. Studies show meaningful reductions in systolic blood pressure, particularly in people with mild to moderate hypertension, sometimes allowing for lower medication doses under medical supervision. Chronic venous insufficiency: This condition — where veins struggle to push blood back up to the heart — responds well to Pycnogenol. Multiple trials show reduced leg edema, fewer symptoms like heaviness and aching, and improved quality of life, making it one of the strongest evidence areas for this extract. Blood sugar and diabetes support: Pycnogenol slows the enzymes that break down carbohydrates in the gut, blunting blood sugar spikes after meals. It also appears to improve insulin sensitivity over time. In people with type 2 diabetes, studies have shown meaningful reductions in fasting blood sugar and HbA1c with consistent use. Skin health and sun damage: Taken orally, Pycnogenol helps skin stay hydrated and smooth by supporting collagen and hyaluronic acid production. It also increases the skin's resistance to UV damage and reduces the appearance of brown spots and fine lines with regular use over 8–12 weeks . ADHD in children: A few clinical trials suggest Pycnogenol may improve attention, reduce hyperactivity, and lower oxidative stress markers in children with ADHD after about a month of use. Effects appear to wear off if supplementation stops, and it works best as a complement to, not replacement for, established treatments. Menopausal symptoms: Studies show that Pycnogenol can meaningfully reduce common menopausal complaints — including hot flashes, night sweats, mood changes, and fatigue — offering a non-hormonal option for women seeking natural relief. Erectile dysfunction: Pycnogenol combined with L-arginine has shown promising results for erectile dysfunction by boosting nitric oxide levels, which promotes healthy blood flow to erectile tissue. Some trials report significant improvement in sexual function after 2–3 months . Asthma and allergies: Pycnogenol's anti-inflammatory properties extend to the airways. Studies in both adults and children with asthma show reduced symptom severity and lower reliance on rescue inhalers, likely because it damps down the inflammatory response driving airway reactivity. Exercise recovery and muscle soreness: Athletes using Pycnogenol report less muscle soreness, faster recovery, and better endurance. It appears to reduce exercise-induced inflammation and oxidative stress, helping muscles bounce back more quickly after intense training.

Proanthocyanidins (as Pycnogenol)

Proanthocyanidins (as Pycnogenol)

Quick Facts

  • What it is: A standardized extract from French maritime pine bark, packed with powerful plant antioxidants called proanthocyanidins.
  • Main uses: Best known for improving circulation, reducing inflammation, supporting skin health, and helping with blood sugar and blood pressure.
  • Best for: Circulation and leg swelling, Blood pressure support, Skin health and aging
  • Active ingredients: Proanthocyanidins (oligomeric proanthocyanidins / OPCs), Procyanidins, Catechins, Taxifolin, Phenolic acids (ferulic acid, caffeic acid)
  • Forms: Capsule, Tablet, Powder, Topical cream
  • Time to effect: Circulation and inflammation benefits often noticed within 2–4 weeks; skin and blood sugar effects may take 6–12 weeks of consistent use.
  • Side effects: Generally very well tolerated — mild digestive upset or headache occasionally reported, especially early on.
  • Pregnancy & breastfeeding: Not assessed for this entry. Ask your doctor or midwife before use.

Educational information, not medical advice — ask your doctor or midwife.

Track this remedy in the app

Track Proanthocyanidins (as Pycnogenol) with reminders and record whether it helped, in the app.

Download on the App StoreGet it on Google Play

What is proanthocyanidins (as Pycnogenol)?

Proanthocyanidins (as Pycnogenol) is a type of flavonoid antioxidant found in various plants, including pine bark and grape seed. It is commonly used as a dietary supplement to support various aspects of health and wellness.

How does it work?

Proanthocyanidins (as Pycnogenol) works by providing antioxidant support and promoting healthy circulation, among other effects.

What are the active ingredients that are important for its medicinal properties?

The active ingredient in proanthocyanidins (as Pycnogenol) is a type of flavonoid antioxidant known as proanthocyanidins.

What forms does it come in?

Proanthocyanidins (as Pycnogenol) is available in various forms including capsules, tablets, and liquid extract.

When was it first used for medicinal purposes?

Proanthocyanidins (as Pycnogenol) has been used for medicinal purposes for decades, with some of the earliest documented uses dating back to the 1960s.

Summary:

Proanthocyanidins (as Pycnogenol) is a type of flavonoid antioxidant found in various plants, including pine bark and grape seed. It has been used for decades to support various aspects of health and wellness, including healthy circulation, skin health, relief from menopausal symptoms, reducing inflammation, and improving joint and muscle function. It may also help prevent cognitive decline, cardiovascular disease, and free radical damage. Some of the top foods rich in proanthocyanidins (as Pycnogenol) include pine bark, grape seed, red wine, blueberries, and cranberries. A deficiency or imbalance of proanthocyanidins (as Pycnogenol) may lead to increased oxidative stress and decreased antioxidant support. Possible side effects include stomach upset, headache, dizziness, and itching. The recommended daily dose of proanthocyanidins (as Pycnogenol) is between 40-200mg per day, and it may take several days or weeks to see results. It may be taken with or without food, at any time of day as long as it is taken consistently each day. Overall, proanthocyanidins (as Pycnogenol) is generally well-tolerated and can be a helpful supplement for supporting various aspects of health and wellness.

Evidence grades and traditional-use labels are explained in our methodology. Nothing here is medical advice.

Reviewed by the HealisticMD editorial team How we grade evidence →

Remedies related to Proanthocyanidins (as Pycnogenol)

The evidence behind this remedy, in one page

What it is typically used for, usual dose, cautions, and the study behind it where real trial data exists.

One email with the summary. We'll also send a short weekly evidence update — unsubscribe any time.