Best Antioxidant & Immune Ingredients China Manufacturer
AccoBio antioxidant and immune ingredients span fermentation, botanical and enzyme grades, each released against a documented standard with a full batch COA.
- Trans-resveratrol 99% by fermentation — water-clean process, no solvent residue concern
- Natural astaxanthin from Haematococcus pluvialis at 1.5-5.0% (HPLC)
- Quercetin dihydrate ≥95% from Sophorae Japonica flower, ≥95% through 80 mesh
- L-ergothioneine ≥99.9%, urolithin A ≥98% and spermidine trihydrochloride ≥98%
- Chlorella powder at ≥50% protein and lactase at NLT 160,000 ALU/g for gut-immune lines
Choose Antioxidant & Immune Ingredients For Your Wellness Formulas
Our antioxidant and immune portfolio is built around three sourcing routes — fermentation, botanical extraction and enzymatic production — so you can match the origin story to your brand positioning. Each grade carries a documented specification, a defined assay method and a full microbial panel.
1. Fermentation-Derived Antioxidants
- Trans-resveratrol 99% from fermentation, ≥95% through 80 mesh
- Non-irradiated, non-ETO, excipient-free
- L-ergothioneine ≥99.9% (HPLC) with 100% pass 50 mesh, bulk density 0.55-0.75 g/mL
- Both grades suit capsule, tablet and powder blend applications
2. Botanical Antioxidant Extracts
- Quercetin dihydrate ≥95% (HPLC) from Sophorae Japonica flower
- Astaxanthin from Haematococcus pluvialis at 1.5-5.0%, total carotenoids 2.0-6.0%
- L-carnosine 99.0-101.0% with 100% through 100 mesh
- S-equol ≥98% and urolithin A ≥98% for next-generation positioning
3. Cellular Health & Longevity Actives
- Spermidine trihydrochloride ≥98.0% by GC, chloride titration 99.0-101.0%
- Urolithin A ≥98.0% with bulk density NLT 0.2 g/ml
- Tight heavy-metal windows (Pb ≤0.5 ppm on urolithin A)
- Cold-chain and light-protected options for stability
4. Gut-Immune & Nutritional Support
- Lactase at NLT 160,000 ALU/g from Aspergillus oryzae
- Chlorella powder at ≥50% protein, ≥95% through 80 mesh
- L-glutamine 98.5-101.5% for intestinal support formulations
- D-biotin 97.5-102.0% tested to USP2022, EP9 and FCC X
Antioxidant & Immune Ingredient Applications
Resveratrol, astaxanthin and quercetin combine in daily oxidative-stress formulas. Fermentation-derived resveratrol offers a clean origin story, while astaxanthin at 1.5-5.0% keeps dosage volume practical.
Ergothioneine, chlorella and lactase support immune and gut-immune positioning. Chlorella at ≥50% protein doubles as a protein claim contributor in capsule and powder formats.
Urolithin A and spermidine serve the emerging cellular-health category. Both are supplied at ≥98% purity with documented residual solvent control for premium positioning.
Astaxanthin, L-carnosine and S-equol are used in skin defence blends. Low heavy-metal limits and full microbial panels keep them suitable for long-term daily use in beauty-from-within lines.
Why Choose AccoBio Antioxidant & Immune Ingredients To Grow Your Wellness Brand
Since 2010, AccoBio has supplied antioxidant and immune ingredients to over 500 active supplement brands across 50+ countries. The range covers legacy actives such as astaxanthin and quercetin alongside newer categories like urolithin A, spermidine and ergothioneine — all held to documented specifications.
Whether you are relaunching a resveratrol capsule, building a gut-immune blend with lactase or developing a cellular-health formula, we deliver the purity, origin documentation and lead times your label and your calendar require.
- Fermentation, botanical and enzymatic grades from one qualified source
- Method-transparent COA — assay method stated for every active
- 4 global warehouses — samples in 7 days, bulk orders in 2-4 weeks
- Custom specifications — dilution, carrier, particle size, premix blending
Why Our Antioxidant & Immune Ingredients Stand Out
Fermentation, botanical extraction and enzymatic production are all represented in this portfolio. You can choose a water-clean fermentation origin for resveratrol and ergothioneine, a traceable botanical origin for quercetin and astaxanthin, or an enzymatic grade for lactase — without adding suppliers.
Urolithin A is controlled at Pb ≤0.5 ppm and S-equol at Pb ≤0.1 ppm, well inside typical pharmacopoeia limits. These windows matter most on premium, high-priced actives where a single out-of-spec batch is expensive.
Assay methods are stated per grade — HPLC for resveratrol, ergothioneine, quercetin, urolithin A and S-equol; UV for astaxanthin carotenoids; FCC for lactase activity; GC for spermidine. You can audit the method, not just the number.
Our R&D collaboration with Jiangnan University supports custom work on extraction parameters, fermentation optimisation, carrier and dilution systems, and premix design for multi-active antioxidant blends.
