What Is Ginkgo 24/6?

Ginkgo biloba is the oldest living tree species, and its leaves yield one of the best-characterized botanical extracts in the world. The pharmacopoeia standard known as 24/6 specifies 24% flavone glycosides – the antioxidant fraction – and 6% terpene lactones – ginkgolides and bilobalide, unique to ginkgo – plus a strict limit on ginkgolic acids, the allergenic compounds. This specification is the reference for cognitive and circulatory research and the benchmark brands expect when positioning ginkgo for memory-support positioning.

Key Facts at a Glance

• Active content: Flavone Glycosides 24% / Terpene Lactones 6% (HPLC)
• CAS number: 90045-36-6
• Appearance: Light brown fine powder
• Ginkgolic acid: Below 5 ppm
• Standard: USP/EP-style 24/6 specification
• Typical serving: 120-240 mg extract per day
• Packaging: 25 kg drum (custom formats available)
• Shelf life: 24 months in sealed, cool, dry storage

Origin & Sourcing

Extracted from ginkgo leaves cultivated on dedicated plantations, harvested in autumn when actives peak. The leaves are extracted and purified through a multi-step process that enriches both marker fractions while stripping ginkgolic acids below 5 ppm – the step that separates pharmacopoeia-grade extract from crude leaf powder. Every batch is verified by HPLC for flavone glycosides and terpene lactones, with pesticide and heavy-metal testing completing the release panel.

Key Benefits

• Classic botanical for memory and cognitive-support formulas
• Supports cerebral and peripheral circulation
• Antioxidant protection for nerve tissue
• Pharmacopoeia-grade 24/6 standardization
• Ginkgolic acid controlled below 5 ppm
• Low pesticide residue guaranteed

Applications

Memory-support capsules for seniors, nootropic stacks, eye-health formulas, circulation-support products and cognitive gummies. The USP/EP-style grade is the standard choice for brands selling into pharmacies and markets where pharmacopoeia compliance is part of the purchase decision. Beyond memory capsules, ginkgo 24/6 appears in eye-health and circulation formulas, and it partners with omega-3, phosphatidylserine and bacopa in cognitive stacks. Pharmacy-positioned products typically print the 24/6 standardization on the front label.

Why 2026 Matters

Population aging keeps cognitive health among the fastest-growing supplement categories, and ginkgo is the category’s classic ingredient with decades of pharmacist recognition. The market has also become quality-driven: buyers increasingly check for 24/6 standardization and low ginkgolic acid, because commodity leaf powder cannot support real label claims. A pharmacopoeia-grade supply is therefore a trust signal, not just a spec line. The senior-cognitive category keeps expanding as populations age, and ginkgo remains its most recognized botanical in pharmacy channels worldwide. The quality bar is also rising: regulators and buyers increasingly test for ginkgolic acid and pesticide residues, which commodity leaf powder routinely fails. A pharmacopoeia-grade supply is therefore a compliance advantage, not just a marketing one – especially for brands selling in European and Asian pharmacy markets.

Science Snapshot

Ginkgo’s terpene lactones inhibit platelet-activating factor, a mechanism relevant to blood flow, while its flavonoids provide antioxidant protection – together supporting the extract’s traditional use for circulation and cognition. Large trials in age-related cognitive decline have produced mixed results, and meta-analyses report modest effects in some populations; the extract is nevertheless the most-studied botanical in the category, with the 24/6 grade used in the majority of published research. Beyond cognition, ginkgo research covers peripheral circulation – intermittent claudication trials report walking-distance improvements – and eye health, where retinal microcirculation is the target. The extract’s antioxidant flavonoids protect against oxidative stress in neural tissue, and bilobalide shows neuroprotective activity in preclinical models. Quality standardization is unusually strict for ginkgo because the pharmacopoeia defines both active fractions and the ginkgolic acid ceiling, making the 24/6 grade a genuine regulatory-grade product.

Quality & Specifications

• Actives: Flavone Glycosides 24% / Terpene Lactones 6% (HPLC)
• Ginkgolic acid: Below 5 ppm
• Appearance: Light brown fine powder
• Packaging: 25 kg drums (custom formats available)
• Shelf life: 24 months in sealed, cool, dry storage
• Testing: HPLC actives, ginkgolic acid, pesticides, heavy metals, ethylene oxide (EtO), aflatoxins, PAH, pyrrolizidine alkaloids (PAs)
• Compliance: Pesticide residue screened to EU MRLs (EC) 396/2005; Proposition 65 (Prop 65) statement and full contaminant documentation on request
• Note: Business-to-business ingredient information only. Not intended to diagnose, treat, cure or prevent any disease.

Safety & Regulatory

Well tolerated at 120-240 mg extract per day. Use with caution with anticoagulant or antiplatelet medication and before surgery – consult a healthcare professional.

Formulation Notes

Ginkgo extract is a light brown powder with a characteristic herbal note that capsules mask easily; tablets are common in the pharmacy channel. For beverages and gummies a water-soluble grade can be arranged. Pairs with Panax ginseng in classic cognitive combos, with omega-3 DHA in memory stacks, and with lutein and bilberry in eye-health formulas.

How It Compares

• Ginkgo 24/6 vs low-grade ratios: the 24/6 pharmacopoeia specification is the researched standard; lower ratios may not deliver the studied actives.
• Ginkgo vs Panax ginseng: both are classic cognitive botanicals – ginkgo through circulation and antioxidant activity, ginseng through stress and energy systems.
• Standardized extract vs leaf powder: leaf powder cannot guarantee flavone glycosides or terpene lactones and carries uncontrolled ginkgolic acid.
• Ginkgo vs bacopa: bacopa is the Ayurvedic memory herb with a different mechanism; the two are frequently combined in nootropic stacks.
• Ginkgo vs omega-3 DHA: DHA is the structural membrane lipid for brain cells; ginkgo studied for circulation markers and antioxidant chemistry – frequently combined in memory products.

Frequently Asked Questions (FAQ)

Does this ginkgo extract meet pharmacopoeia standards?

Yes – manufactured to USP/EP-style 24/6 specifications with ginkgolic acid below 5 ppm.

Can you provide a COA and third-party test report?

Yes. Every batch ships with a Certificate of Analysis, and third-party testing is available on request.

What is the MOQ and packaging?

Standard packaging is a 25kg drum. Please contact us for current MOQ and sample availability.

What is the ginkgolic acid limit?

Below 5 ppm, the pharmacopoeia limit for the allergenic fraction.

What serving is typical?

120-240 mg of 24/6 extract per day is the common range in published research.

Is it suitable for seniors’ formulas?

Yes. Ginkgo 24/6 is the classic memory-support ingredient for seniors, used in pharmacy and OTC channels worldwide.

Do you test pesticide residues?

Yes. Pesticide and heavy-metal panels are part of every release.

How to Get Started

1. Tell us your format and target dose – capsules, powders, tablets, gummies or beverages.
2. We confirm the matching grade, send the specification sheet and a free sample.
3. Approve the sample and run a trial batch; we lock the COA and lead time.
4. Scale to full production with batch-to-batch consistency guaranteed.