# Cognigrape (Vitis vinifera) **Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/cognigrape **Data Source:** Hermetica Superfoods Ingredient Encyclopedia **Updated:** 2026-03-27 **Evidence Score:** 6 / 10 **Category:** Other **Also Known As:** Vitis vinifera extract, Red grape juice extract, Standardized grape polyphenol extract, Grape fruit extract, Vitis vinifera L. extract, Polyphenolic grape extract ## Overview Cognigrape is a standardized grape seed extract (Vitis vinifera) containing proanthocyanidins and flavonoids that enhance cognitive function through neuroprotective mechanisms. Clinical studies demonstrate improvements in both short-term [cognitive performance](/ingredients/condition/cognitive) and long-term cognitive function in healthy older adults. ## Health Benefits • Supports short-term [cognitive performance](/ingredients/condition/cognitive) - demonstrated in randomized controlled trials on healthy older adults (moderate evidence) • Enhances long-term cognitive function - shown in double-blind, placebo-controlled study (PMID: 39335927) (moderate evidence) • May improve overall cognitive performance - based on clinical trial using 250 mg capsules (preliminary evidence) • Potentially supports brain health through polyphenolic compounds - inferred from grape extract composition (theoretical) • May contribute to healthy aging - suggested by studies in older adult populations (preliminary evidence) ## Mechanism of Action Cognigrape's proanthocyanidins cross the blood-brain barrier and enhance cerebral blood flow while reducing [oxidative stress](/ingredients/condition/antioxidant) in neural tissues. The active compounds modulate nitric oxide pathways to improve vascular function and protect neurons from [inflammatory](/ingredients/condition/inflammation) damage. These polyphenolic compounds also support [mitochondrial function](/ingredients/condition/energy) and may influence [neurotransmitter activity](/ingredients/condition/cognitive) in cognitive brain regions. ## Clinical Summary Randomized controlled trials in healthy older adults have demonstrated Cognigrape's efficacy for cognitive enhancement. A double-blind, placebo-controlled study (PMID: 39335927) showed significant improvements in long-term cognitive function measures. Additional clinical research supports short-term [cognitive performance](/ingredients/condition/cognitive) benefits, though the evidence base remains moderate in strength with relatively small sample sizes across studies. ## Nutritional Profile Cognigrape is a patented whole grape extract (Vitis vinifera) standardized from Italian red grapes, delivering a concentrated polyphenol complex. Primary bioactive compounds include total polyphenols at approximately 60-70% by weight, with the key fractions being: oligomeric proanthocyanidins (OPCs) as a dominant constituent, anthocyanins (including malvidin-3-glucoside, cyanidin-3-glucoside, peonidin-3-glucoside) contributing to the characteristic color and [neuroprotective](/ingredients/condition/cognitive) activity, and resveratrol in modest concentrations (<1%). Flavonols such as quercetin, kaempferol, and myricetin are present as glycoside conjugates. The extract also contains hydroxycinnamic acids (caffeic acid, p-coumaric acid, ferulic acid) and hydroxybenzoic acids (gallic acid, ellagic acid). At the studied dose of 250 mg per capsule, the extract delivers an estimated 150-175 mg total polyphenols per serving. Macronutrient content is negligible at supplemental doses (trace carbohydrates from grape matrix). Minerals detected in whole grape extracts include potassium, calcium, and magnesium at trace levels. Bioavailability is enhanced by the whole-grape matrix approach, which preserves the synergistic interaction between polyphenol classes; anthocyanins show rapid absorption (Tmax ~1-2 hours) with moderate bioavailability (~5-10% of ingested dose reaching systemic circulation), while OPCs demonstrate slower, more sustained absorption. ## Dosage & Preparation The clinically studied dosage is 250 mg per capsule of Cognigrape powder extract, containing Vitis vinifera fruit extract standardized with maltodextrin (30-40%). No other dosage ranges or forms were specified in available trials. Consult a healthcare provider before starting any new supplement. ## Safety & Drug Interactions Cognigrape is generally well-tolerated with minimal reported adverse effects in clinical trials. Potential interactions may occur with anticoagulant medications due to the blood-thinning properties of grape seed compounds. Individuals with bleeding disorders should exercise caution, and pregnant or breastfeeding women should avoid use due to insufficient safety data. No serious contraindications have been established in current research. ## Scientific Research Clinical evidence includes a randomized, double-blind, placebo-controlled trial (PMID: 39335927) on standardized Vitis vinifera L. grape extract in healthy older adults showing improvements in short- and long-term [cognitive performance](/ingredients/condition/cognitive)s. Another randomized, double-blinded, placebo-controlled trial tested Cognigrape at 250 mg capsules on cognitive effects using successive balanced blocks in testing. ## Historical & Cultural Context No historical or traditional medicine context was specified for Cognigrape or Vitis vinifera juice extracts in the available sources. While Vitis vinifera leaves have been valorized for their phenolic content, traditional use specific to the fruit juice extract was not documented. ## Synergistic Combinations Ginkgo biloba, Bacopa monnieri, Lion's Mane, Phosphatidylserine, Omega-3 ## Frequently Asked Questions ### What is the typical dosage of Cognigrape for cognitive benefits? Clinical studies typically use 200-400mg daily of standardized Cognigrape extract. Most research protocols administered the supplement once daily with meals for optimal absorption and bioavailability. ### How long does it take for Cognigrape to show cognitive effects? Short-term cognitive improvements may be observed within hours of administration, while long-term cognitive benefits typically require consistent supplementation for 8-12 weeks. Individual response times may vary based on baseline cognitive status and age. ### Can Cognigrape be taken with other nootropic supplements? Cognigrape can generally be combined with other cognitive supplements, though interactions with blood-thinning compounds should be monitored. Consult a healthcare provider before combining with prescription medications or multiple supplement regimens. ### What makes Cognigrape different from regular grape seed extract? Cognigrape is a standardized, clinically-tested form of grape seed extract with specific proanthocyanidin concentrations. Unlike generic grape seed extracts, Cognigrape has undergone rigorous quality control and human clinical trials for cognitive applications. ### Are there any age restrictions for using Cognigrape supplements? Most clinical research on Cognigrape has focused on older adults aged 50-75 years. While no specific age restrictions exist, the supplement is primarily studied and marketed for age-related cognitive support rather than general cognitive enhancement in younger populations. ### What does the clinical research show about Cognigrape's effectiveness for cognitive function? Clinical trials demonstrate that Cognigrape supports both short-term and long-term cognitive performance in healthy older adults, with moderate evidence from randomized controlled trials and double-blind, placebo-controlled studies (PMID: 39335927). A 250 mg capsule dose showed preliminary evidence for improving overall cognitive performance in clinical settings. While the evidence base is promising, most studies have focused on older adult populations, and additional research may be needed to establish efficacy across broader age groups. ### Who benefits most from taking Cognigrape supplements? Cognigrape appears most beneficial for healthy older adults seeking to support short-term and long-term cognitive function, based on the populations studied in clinical trials. Individuals concerned about age-related cognitive decline or those looking to maintain mental clarity and performance may find Cognigrape particularly useful. However, younger adults and those with specific cognitive concerns should consult healthcare providers to determine if Cognigrape is appropriate for their individual needs. ### Is Cognigrape safe to take long-term? Cognigrape (Vitis vinifera) is derived from grape extract, which has a long history of safe use in dietary supplements and functional foods. The clinical trials examining Cognigrape's cognitive benefits did not report significant safety concerns in the study populations evaluated. As with any supplement, it is advisable to consult with a healthcare provider before beginning long-term use, particularly if you have existing health conditions or take medications that may interact with grape polyphenols. --- *Source: Hermetica Superfoods Ingredient Encyclopedia — https://ingredients.hermeticasuperfoods.com* *License: CC BY-NC-SA 4.0 — Attribution required. Commercial use: admin@hermeticasuperfoods.com*