Bulk Pomegranate Peel Extract Supplier — Ellagic Acid 40% & 98% HPLC, B2B Wholesale
Valeherb supplies pomegranate peel extract bulk wholesale, standardized to ellagic acid at 40% and 98% by HPLC, derived from the dried peel (rind) of Punica granatum L. (Lythraceae). Pomegranate peel is a byproduct of juice and food processing, and is the primary commercial source of ellagic acid — a polyphenolic compound formed through hydrolysis of ellagitannins, principally punicalagin, the dominant polyphenol in pomegranate peel. Ellagic acid is one of the most extensively researched dietary polyphenols, with a published evidence base spanning antioxidant, anti-inflammatory, and antimicrobial activity.[2]
On this page: available grades, ellagic acid vs punicalagin, research background, formulation applications, sourcing criteria, and regulatory guidance.
Available Grades
| Grade | Ellagic Acid Content | Typical Application |
|---|---|---|
| Standard | 40% (HPLC) | Antioxidant supplement blends, functional food fortification, cosmeceutical formulations where cost efficiency matters |
| High-Purity | 98% (HPLC) | Premium antioxidant capsules, precision-dosed skin-care actives, research and reference compound applications |
Custom standardization levels and punicalagin-quantified specifications available on request. MOQ, lead time, and current pricing available on inquiry.
Ellagic Acid vs Punicalagin: Understanding the Peel’s Compound Profile
Pomegranate peel’s antioxidant activity comes from two related but distinct compound classes. Punicalagin is the dominant ellagitannin in raw peel and has notably high direct antioxidant capacity. Ellagic acid is a downstream metabolite formed when ellagitannins including punicalagin undergo hydrolysis — its per-molecule antioxidant capacity is lower than punicalagin’s, but it is more chemically stable and is the standard HPLC marker compound used for standardization and quality control across the industry.[1]
Research Background
Provided as scientific context for formulators, not as claims for any Valeherb product.
Antioxidant and Anti-Inflammatory Mechanisms
Xiang et al. (2022) reviewed the bioactivity and applications of pomegranate peel extract, documenting ellagic acid’s antioxidant, anti-inflammatory, neuroprotective, antiviral, and antibacterial activities across published preclinical research, and analysing the proposed mechanisms underlying these effects alongside applications in food preservation and functional food development.[1] A 2025 comprehensive review in Frontiers in Pharmacology further characterised the compound profile of pomegranate peel extract, confirming punicalagin’s high direct antioxidant capacity and its hydrolysis to ellagic acid and punicalin, and noted that long-term intake of ellagitannin-rich sources is metabolised by gut microbiota into urolithins — a class of gut-derived metabolites under active research investigation.[2]
Topical Anti-Inflammatory Research — Direct Comparison Study
Mo et al. (2013, Journal of Ethnopharmacology) conducted a controlled study comparing topical application of a standardized pomegranate rind extract (13% ellagic acid) against its isolated marker compound ellagic acid, across both acute inflammation models (croton oil-induced ear edema, carrageenan-induced paw edema) and a chronic polyarthritis model in rodents. Both the standardized extract and isolated ellagic acid produced dose-dependent reductions in edema, with the extract showing a maximal inhibition of 86.3% versus 80.8% for equivalent ellagic acid alone — suggesting a possible synergistic contribution from other peel-derived compounds alongside ellagic acid itself.[3] These are preclinical animal model findings described here as research context.
Immunomodulatory Activity
A 2022 study investigated pomegranate peel extract in a human peripheral blood mononuclear cell (PBMC) culture model, finding that punicalagin, punicalin, and ellagic acid acted synergistically to modulate immune cell response, providing mechanistic insight into the extract’s documented immunomodulatory properties beyond ellagic acid’s isolated activity alone.[4]
Formulation Applications
- Antioxidant supplement capsules: 40% or 98% grade at 200–500 mg per serving. Pairs with vitamin C, grape seed extract, and resveratrol in multi-mechanism antioxidant formulas
- Cosmeceutical and skin-care actives: 98% grade in brightening serums and antioxidant topicals. Ellagic acid has documented tyrosinase-inhibitory and antioxidant activity relevant to skin-brightening formulations — see our dedicated skin formulation guide for mechanism and use-level detail
- Functional food and beverage fortification: 40% grade for antioxidant fortification in functional beverages and food products, leveraging pomegranate’s established consumer recognition as an antioxidant-rich ingredient
- Food preservation applications: Ellagic acid’s antimicrobial and antioxidant activity supports its use in food preservation research, though formulators should confirm regulatory status for this specific application in their target market
Sourcing Criteria
| Criterion | What to Require |
|---|---|
| Plant Part | Dried peel (rind) of Punica granatum confirmed on COA — not whole fruit or seed extract, which have different compound profiles |
| Ellagic Acid Content | HPLC-verified ellagic acid percentage per batch (40% or 98%). Colorimetric total polyphenol figures alone are insufficient for standardized grade verification |
| Punicalagin Data | Request punicalagin content separately quantified if your formulation targets the ellagitannin fraction directly, or if authenticity verification against adulterated material is required |
| Third-Party COA | Ellagic acid content (HPLC), heavy metals (USP <232>), pesticide residues, microbial limits (USP <2021>), moisture — per production batch from accredited laboratory |
Regulatory Guidance
- US (DSHEA): Antioxidant structure/function claims are supportable with published research — self-substantiation and FDA disclaimer required. Disease treatment claims require drug approval. FDA-registered facility (21 CFR Part 111)
- Cosmetics (EU/US): INCI name Punica Granatum Peel Extract. Listed in EU Cosing database. Confirm safety assessment under EU Cosmetics Regulation 1223/2009 for your specific formulation and concentration
- China: Pomegranate peel extract is used in food, cosmetic, and TCM applications; confirm current approved use categories under GB standards for your specific application
