Nutraceuticals
Antioxidant, skin-health and vascular-support supplements.
Grape seed extract standardised for proanthocyanidins (OPC) — a leading antioxidant active for supplements and cosmetics.
Proanthocyanidin-rich grape seed extract — standard, water-extract and high-purity OPC grades.
Grape seed extract is one of the most established antioxidant ingredients in the nutraceutical and cosmetic markets. CTA extracts the seed of Vitis vinifera and standardises it for proanthocyanidins — oligomeric proanthocyanidin complexes, or OPC — the polyphenols responsible for its activity.
Our process library covers a standard polyphenol grade, a water-extract grade and a purified-fraction (PHD-level) route for high-OPC material. This range lets CTA supply a cost-effective antioxidant grade for general supplement use, or a high-purity OPC grade for premium positioning.
CTA supplies Grape across multiple grades. Custom specifications are developed against a documented buyer requirement.
| Botanical source | Vitis vinifera L. — grape seed |
| Appearance | Red-brown to brown fine powder |
| Standardisation | 95% polyphenols / 95% proanthocyanidins (OPC); water-extract grade |
| Test method | UV / HPLC |
| Loss on drying | Not more than 5% |
| Total ash | Not more than 3% |
| Heavy metals | Conforms to USP / regulatory limits |
| Microbiology | TPC ≤10,000 cfu/g; yeast & mould ≤500 cfu/g; E. coli & Salmonella absent |
| Pesticide residues | Within IP / USP / EP limits |
| Solubility | Water-dispersible |
All values are typical specifications and are confirmed batch-by-batch on the Certificate of Analysis. Custom specifications can be developed against a buyer's documented requirement. Values are indicative and to be confirmed by CTA's technical team before publication.
CTA's grape seed programme covers standard through high-purity OPC routes:
A documented process library is what separates a speciality product from a commodity — it makes grades reproducible and lets CTA develop a custom specification with confidence.
Statements describe traditional use and the role of the active in normal body function. They are structure–function statements and not claims to diagnose, treat, cure or prevent any disease.
Antioxidant, skin-health and vascular-support supplements.
Antioxidant and anti-ageing actives for skincare.
Polyphenol fortification of functional foods and drinks.
OPC actives for antioxidant and beauty-from-within blends.
Grape seed extract is permitted under FSSAI and widely accepted internationally as a food supplement and cosmetic ingredient. Grade documentation and dossiers are provided on enquiry.
Note: grades, marker percentages and regulatory status are indicative and to be confirmed by CTA's technical and regulatory team before publication.
OPC stands for oligomeric proanthocyanidin complexes — the polyphenol compounds in grape seed responsible for its antioxidant activity. CTA standardises grape seed extract on proanthocyanidin (OPC) content.
CTA offers a water-extract base grade, a 95% polyphenol grade and a 95% proanthocyanidin (OPC) grade, with custom assays on request.
Yes. Its antioxidant polyphenols make it a popular active in anti-ageing and skin-health cosmetic formulations, and CTA supplies water-dispersible grades suited to that use.
Lutein esters, free lutein and high-purity lutein crystal from marigold flowers.
View details →Our most developed extraction programme — from 95% curcuminoids to water-dispersible and high-bioavailability turmeric actives.
View details →Chlorogenic-acid-rich green coffee extracts and natural caffeine — backward-integrated to the group's own Robusta estate.
View details →Send the grade and quantity you need. CTA responds to qualified B2B enquiries, CoA and sample requests within two working days.