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Pb5.5
Pine Bark Extract – Forschung
Hilft wahrscheinlich
55 begutachtete Studien
Was die Evidenz sagt
Hilft wahrscheinlich
Pine Bark Extract scheint in 13 von 15 Studien mit messbaren Effekten zu helfen — die Evidenz tendiert klar ins Positive.
Die meiste Evidenz stammt aus hochwertigen Meta-Analysen und randomisierten Studien, veröffentlicht 2000–2026 mit einer typischen Studiengröße von 234 Teilnehmenden.
Basierend auf 55 Studien · 17 Meta-Analysen · 23 RCTs · 26,158 Teilnehmende insgesamt
Konfidenz
Hohe Konfidenz
Was die Studien gefunden haben
13geholfen1unklar1nicht geholfen· 40 weitere ohne bewertete Effektdaten
Nach Outcome
Heart & blood pressurePycnogenol verbessert die Endothelfunktion und den Blutdruck · 4-8 Wochen
Hilft wahrscheinlich44 Studien
Cognitive function
Überwiegend Mechanismus / Beobachtung6 Studien
Glucose & metabolic
Hilft vermutlich5 Studien
Focus & attentionVerbesserte kognitive Funktion durch Durchblutung · 4-8 Wochen
Überwiegend Mechanismus / Beobachtung5 Studien
Women's healthUnterstützt einen gesunden Östrogenstoffwechsel und das hormonelle Gleichgewicht · 4-8 Wochen
Überwiegend Mechanismus / Beobachtung5 Studien
Joint pain & arthritis
Überwiegend Mechanismus / Beobachtung4 Studien
Cholesterol & lipidsPycnogenol verbessert die Endothelfunktion und den Blutdruck · 4-8 Wochen
Hilft wahrscheinlich4 Studien
Men's vitalityErektionsfähigkeit über Stickstoffmonoxid · 4-8 Wochen
Überwiegend Mechanismus / Beobachtung4 Studien
InflammationVerbesserte Durchblutung und Endothelfunktion · 4-8 Wochen
Überwiegend Mechanismus / Beobachtung4 Studien
Safety profile
Überwiegend Mechanismus / Beobachtung4 Studien
Therapeutic & clinical
Zu wenige bewertete Studien2 Studien
Skin healthSchützt vor UV-Schäden und verbessert die Hautfeuchtigkeit · 4-8 Wochen
Zu wenige bewertete Studien1 Studie
Recovery
Zu wenige bewertete Studien1 Studie
In Zahlen
Aus 31 Studien mit messbaren Effekten gezogen
Wahrscheinlich echte Effekte
57%
über Studien hinweg
Untersuchte Personen
26k
typische Studie: 234 Personen
Stärkste Designs
40
17 gepoolt, 23 randomisiert
Zeigte Nutzen
80%
12/15 Studien
Wie lange Studien liefen
1–4 Wochen
1
1–3 Monate
2
3+ Monate
1
Untersuchte Populationen
Adults2
Cardiometabolic syndrome patients1
Children and adolescents with ADHD1
Patients with primary or secondary anorgasmia1
Aktives Forschungsgebiet
27 Studien in den letzten 5 Jahren · Neueste Meta-Analyse: 2025
200020132026
1Cardiometabolic risk factorsMeta-Analysen=1,685 · large study2025
Einfach gesagt: Supplementation with PBE may ameliorate specific cardiometabolic risk factors, as indicated by reductions in body weight, DBP, SBP, FBS, LDL, and HbA1c levels.
Mohammadi S et al. · BMC complementary medicine and therapies (2025)
Supplementation with PBE may ameliorate specific cardiometabolic risk factors, as indicated by reductions in body weight, DBP, SBP, FBS, LDL, and HbA1c levels.
This approach can be regarded as an adjunct therapeutic strategy for CMS management.
Further high-quality trials with larger sample sizes and longer durations are required to validate these findings.
2ADHD symptom reductionMeta-Analysen=3,650 · very large study2024
Einfach gesagt: The rankings of safety and efficacy of the 12 antioxidants vary.
Zhou P et al. · PloS one (2024)
The rankings of safety and efficacy of the 12 antioxidants vary.
Due to the low methodological quality of the included studies, the probability ranking cannot fully explain the clinical efficacy, and the results need to be interpreted with caution.
More high-quality studies are still needed to verify our findings.
4Orgasmic function in male anorgasmiaSystematische Übersichtn=234 · medium study2025
Einfach gesagt: Pharmacological therapy with cabergoline, yohimbine, bupropion, and pycnogenol can have a positive effect on the orgasmic function of patients with primary or secondary anorgasmia.
Gómez-Bueno MP et al. · Actas urologicas espanolas (2025)
Sehr groß Nutzen
← SchlechterKein EffektBesser →
The cabergoline improved orgasm in 66% of the population and yohimbine in 55%.
Pharmacological therapy with cabergoline, yohimbine, bupropion, and pycnogenol can have a positive effect on the orgasmic function of patients with primary or secondary anorgasmia.
6Adverse eventsMeta-Analysen=7,690 · very large study2020
Einfach gesagt: There is moderate-certainty evidence that phlebotonics probably reduce oedema slightly, compared to placebo; moderate-certainty evidence of little or no difference in QoL; and low-certainty evidence that these drugs do not influence ulcer healing.
Martinez-Zapata MJ et al. · The Cochrane database of systematic reviews (2020)
Spürbar Schaden
← SchlechterKein EffektBesser →
Pooled data suggest that phlebotonics probably increase adverse events slightly, compared to placebo (RR 1.14, 95% CI 1.02 to 1.27; 37 studies; 5789 participants; moderate-certainty evidence).
There is moderate-certainty evidence that phlebotonics probably reduce oedema slightly, compared to placebo; moderate-certainty evidence of little or no difference in QoL; and low-certainty evidence that these drugs do not influence ulcer healing.
Moderate-certainty evidence suggests that phlebotonics are probably associated with a higher risk of adverse events than placebo.
8HbA1c reductionMeta-Analysen=1,641 · large study2020
Einfach gesagt: Small sample sizes, limited numbers of RCTs per condition, variation in outcome measures, and poor reporting of the included RCTs mean no definitive conclusions regarding the efficacy or safety of pine bark extract supplements are possible.
Robertson NU et al. · The Cochrane database of systematic reviews (2020)
Kein klarer Effekt
← SchlechterKein EffektBesser →
In a mixed group of participants with type 1 and type 2 DM we do not know whether pine bark extract decreases HbA1c (MD -0.20 %, 95% CI -1.83 to 1.43; one study; 67 participants; very low-certainty evidence).
We do not know whether pine bark extract increases bone alkaline phosphatase in post-menopausal women with osteopenia (MD 1.16 ug/L, 95% CI -2.37 to 4.69; one study; 40 participants; very low-certainty evidence).
Small sample sizes, limited numbers of RCTs per condition, variation in outcome measures, and poor reporting of the included RCTs mean no definitive conclusions regarding the efficacy or safety of pine bark extract supplements are possible.
9HDL cholesterol increaseMeta-Analysen=1,065 · large study2019
Einfach gesagt: Since there are few phytochemicals that have a significant increasing effect on HDL-C levels, pycnogenol may have important role in prevention of cardiovascular diseases.
Hadi A et al. · Phytotherapy research : PTR (2019)
Spürbar Nutzen
← SchlechterKein EffektBesser →
Likely real
To estimate the effect size, changes in blood lipids were implemented.
A systematic review and meta-analysis of 14 clinical trials with 1,065 participants suggested a significant increase in plasma concentration of high density lipoprotein cholesterol (HDL-C; 3.27 mg/dL; 95% CI [0.19, 6.36]; p = 0.038).
Since there are few phytochemicals that have a significant increasing effect on HDL-C levels, pycnogenol may have important role in prevention of cardiovascular diseases.
10Sexual function in erectile dysfunctionMeta-Analysen=184 · medium study2023
Einfach gesagt: These results indicate that the combination of PAL may have a significant effect on improving sexual function in patients with mild to moderate ED.
Tian Y et al. · Frontiers in endocrinology (2023)
These results indicate that the combination of PAL may have a significant effect on improving sexual function in patients with mild to moderate ED.
This study will provide clinicians with more options for treating patients with ED.
More randomized controlled trials are needed in the future to further demonstrate the effect of combination therapy on sexual function in patients with ED.
Einfach gesagt: Further, high quality randomized clinical trials are needed to confirm this result.
Pourmasoumi M et al. · Phytotherapy research : PTR (2020)
Pooled analysis suggested that pycnogenol supplementation can reduced systolic blood pressure (SBP) of (-3.22 mmHg; 95% CI [-5.52, -0.92]) and diastolic blood pressure (DBP; -1.91 mmHg; 95% CI [-3.64, -0.18]).
Effect of pycnogenol on SBP was more pronounce in subgroup in which pycnogenol was administered along with other treatments.
A significant effect of pycnogenol on DBP in studies with >12-week duration, whereas this favorable effect was not observed in subgroup with ≤12-week supplementation.
Einfach gesagt: Foods rich in polyphenols and nitrate provide trivial benefits for endurance exercise performance, although these effects may be food dependent.
d'Unienville NMA et al. · Journal of the International Society of Sports Nutrition (2021)
Kaum spürbar Nutzen
← SchlechterKein EffektBesser →
Could be chance
No effect on exercise performance following consumption of foods rich in L-citrulline was identified (SMD=-0.03, p=0.24).
Foods rich in polyphenols and nitrate provide trivial benefits for endurance exercise performance, although these effects may be food dependent.
Highly trained endurance athletes do not appear to benefit from consuming nitrate-rich foods but may benefit from polyphenol consumption.
15Pain and function in osteoarthritisMeta-Analyse2018
Einfach gesagt: The overall analysis including all trials showed that supplements provided moderate and clinically meaningful treatment effects on pain and function in patients with hand, hip or knee osteoarthritis at short term, although the quality of evidence was very low.
Liu X et al. · British journal of sports medicine (2018)
Spürbar Nutzen
← SchlechterKein EffektBesser →
Another six (undenatured type II collagen, avocado soybean unsaponifiables, methylsulfonylmethane, diacerein, glucosamine and chondroitin) revealed statistically significant improvements on pain, but were of unclear clinical importance.
Chondroitin demonstrated statistically significant, but not clinically important structural improvement (effect size -0.30, -0.42 to -0.17).
The overall analysis including all trials showed that supplements provided moderate and clinically meaningful treatment effects on pain and function in patients with hand, hip or knee osteoarthritis at short term, although the quality of evidence was very low.
Einfach gesagt: Currently the scientific evidence is insufficiently robust to establish definitive clinical practice guidelines, but processes could be established to track the impact of these ingredients.
Crawford C et al. · Pain medicine (Malden, Mass.) (2019)
Currently the scientific evidence is insufficiently robust to establish definitive clinical practice guidelines, but processes could be established to track the impact of these ingredients.
Until then, providers have the evidence needed to make informed decisions about the safe use of these dietary ingredients, and future research can address existing gaps.
17Jetlag reductionMeta-Analysen=10 · very small study2021
Einfach gesagt: Overall, 12 of 183 ingredients contained in 199 products had evidence to support claims.
Chan V et al. · Nutrients (2021)
Groß Nutzen
← SchlechterKein EffektBesser →
Likely real
Meta-analysis (random effects model) indicated melatonin reduced self-reported jetlag following eastbound (n = 5) and westbound (n = 4) flights: standard mean difference -0.76 (95% CI = -1.06 to -0.45, I2 0%, p < 0.00001) and -0.66 (95% CI = -1.07 to -0.26, I2 45%, p = 0.001), respectively.
Pycnogenol also reduced edema scores (n = 3), standard mean -4.09 (95% CI = -6.44 to -1.74), I2 98%, p = 0.0006).
Of the 3842 studies identified, 23 met selection criteria: melatonin (n = 10), Pycnogenol (n = 4), various macronutrients (n = 2), caffeine (n = 2), Centella asiatica (n = 1), elderberry (n = 1), Echinacea (n = 1), fluid (n = 1), and Pinokinase (n = 1).
Einfach gesagt: We further propose pycnogenol (PYC), a polyphenol extract of pine bark, as a natural compound with multiple bioactivities such as anti-inflammatory and antioxidant, can directly or indirectly affect the function of the gut-brain axis by regulating the structure of the intestinal microbial community (increasing the abundance of Akkermansia muciniphila and butyric acid-producing bacteria) and its metabolites, providing a new strategy for the treatment of NDDs.
Chen L, Li Z, Fan Y. · Frontiers in cellular and infection microbiology (2025)
Growing research highlights the gut-brain axis disruption as a potential contributor to NDDs pathophysiology, though systematic evaluation of therapeutic approaches targeting this axis and related gastrointestinal comorbidities (GIDs) remains limited.
This review comprehensively examines the pathological mechanisms underlying ADHD, ASD, and epilepsy, while analyzing the reciprocal relationship between gut-brain axis dysregulation and GID manifestations in NDDs.
Notably, abnormal activation of key signaling pathways including NF-κB, MAPK and PI3K/AKT/mTOR is strongly associated with the pathogenesis of NDDs.