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Quick Specs
FormMarigold Oleoresin
Purity5% Zeaxanthin (HPLC)
SourceTagetes erecta
Shelf life18 months (2–8°C)
MOQ1 kg (sample); 5 kg (commercial)
Nutraceuticals

Zeaxanthin

Marigold Oleoresin 5% Oleoresin Tagetes erecta Foveal Macular Pigment
The foveal carotenoid psupplied from Tagetes erecta marigold oleoresin at 5%, as an enriched concentrate, and as a fixed-ratio blend with lutein.
Zeaxanthin is not simply a companion to lutein — it is the specific carotenoid that concentrates in the fovea centralis, the central 0.5mm of the macula responsible for the sharpest, most detailed vision the human eye produces. Without adequate zeaxanthin at the fovea, the protective macular pigment layer is incomplete precisely where it matters most. It is normally specified alongside lutein rather than on its own, which is why the fixed-ratio blend grade exists.

SV Botanica supplies zeaxanthin from Tagetes erecta oleoresin, HPLC-tested for zeaxanthin content and lutein:zeaxanthin ratio, refrigerated and nitrogen-flushed. Available as a standalone zeaxanthin concentrate or as a pre-blended lutein+zeaxanthin oleoresin at a fixed ratio, so the ratio is set upstream of your process.
Available specifications
Zeaxanthin 5% Oleoresin
Natural marigold-source, softgel-ready
Lutein 20% + Zeaxanthin 4%
Fixed 5:1 pre-blended ratio
Zeaxanthin-Enriched Concentrate
High-zeaxanthin marigold fraction
Meso-Zeaxanthin (synthetic)
Synthetic grade, available on request
  • Lipid matrix requirement — insoluble in water and soluble in oils, so an oil carrier is required. The 5% oleoresin is supplied softgel-ready; aqueous formats need a beadlet or emulsion system rather than the oleoresin directly.
  • Cold chain and shelf life — 18 months refrigerated and nitrogen-flushed, shorter than powder actives. Cold-chain shipping at 2–8°C is available for oleoresin grades and should be specified at enquiry.
  • Blend versus separate actives — the 20% lutein with 4% zeaxanthin natural blend fixes the ratio upstream; separate actives let a formulator set their own. Confirm which assay basis your specification uses before comparing.
  • Meso-zeaxanthin — a synthetic grade available on request, distinct from the marigold-derived form. Specify explicitly if your formulation requires it, since it is not interchangeable on a botanical declaration.
  • Colour carry-through — the yellow-orange colour carries into the finished format and into softgel shells, which matters for clear or lightly coloured presentations.
  • Enriched concentrate — a high-zeaxanthin marigold fraction for formats where the standard 5% oleoresin would require an impractical fill volume.
  • Packaging — 5 kg and 25 kg sealed containers with nitrogen headspace for oleoresin, and 1 kg opaque nitrogen-flushed foil bags for crystalline and enriched grades. Custom blends and pack sizes available.
  • Documentation — each batch ships with a CoA covering assay against the stated grade, heavy metals at NMT 10 ppm with lead at NMT 0.5 ppm, moisture at NMT 2.0%, microbial limits and botanical identity for Tagetes erecta.
Softgel and oil-based supplements
Eye-health category formulations
Carotenoid combination products
Food and beverage fortification
Colour and functional food systems
Infant and clinical nutrition formats
Private-label and contract manufacture
Pet and animal nutrition
Common nameZeaxanthin
IUPAC name(3R,3'R)-β,β-Carotene-3,3'-diol
SynonymsZeaxanthol; (3R,3'R)-Zeaxanthin; All-trans-zeaxanthin
CAS number144-68-3
Molecular formulaC₄₀H₅₆O₂
Molecular weight568.87 g/mol (identical to lutein — constitutional isomers)
Appearance (oleoresin)Yellow-orange to orange viscous liquid
Appearance (crystalline)Yellow to orange crystalline powder
Assay (HPLC)≥5.0% zeaxanthin in oleoresin; ≥90% crystalline grade
Botanical sourceMarigold (Tagetes erecta) flower petals; naturally co-present with lutein
Natural ratioLutein:Zeaxanthin approximately 5:1 in standard marigold oleoresin
Structural difference vs luteinBeta-ionone rings at both ends (vs epsilon-ionone at one end in lutein); double bond position differs
SolubilityInsoluble in water; soluble in chloroform, acetone, oils; highly lipophilic
LogP~10 (highly lipophilic — formulate in lipid matrix)
Moisture contentNMT 2.0%
Heavy metalsNMT 10 ppm total; Lead NMT 0.5 ppm; Arsenic NMT 0.5 ppm
Pesticide residuesComplies with EU Regulation 396/2005 MRLs; tested per APEDA standards
Microbial limitsTotal aerobic count NMT 10³ CFU/g; Absence of Salmonella, E. coli
Shelf life18 months (2–8°C, nitrogen-flushed, opaque)
StorageRefrigerated at 2–8°C; nitrogen atmosphere; opaque packaging; avoid light and heat
5 kg and 25 kg sealed containers with nitrogen headspace (oleoresin grades)
1 kg aluminium foil bags (crystalline or enriched concentrate, nitrogen-flushed, opaque)
Cold-chain shipping (2–8°C) available for oleoresin grades
Custom lutein+zeaxanthin ratio blends available in custom pack sizes
Quality Assurance

Tagetes erecta Source. Lutein:Zeaxanthin Ratio Verified by HPLC.

Every zeaxanthin batch is tested by HPLC for zeaxanthin content and lutein:zeaxanthin ratio, pesticide residues, heavy metals, and microbial safety. Cold-chain storage and nitrogen-flushed packaging to prevent carotenoid oxidation.

01

HPLC zeaxanthin & lutein co-quantification

COA reports both zeaxanthin and lutein contents and their ratio; important where a specification requires documented zeaxanthin content separate from total carotenoids.

02

Tagetes erecta botanical traceability

Same marigold source as lutein; botanical identity confirmed by HPLC carotenoid fingerprinting; pesticide residues tested to EU MRL standards on raw material.

03

Cold-chain storage & nitrogen-flushed packaging

Zeaxanthin shares lutein's carotenoid sensitivity to heat and oxygen; all grades stored refrigerated, nitrogen-flushed, in opaque containers; cold-chain export logistics available.

04

Export documentation

COA, MSDS, Certificate of Origin, Phytosanitary Certificate with every shipment; pre-blend COA specifying both lutein and zeaxanthin contents for combination ingredients.

Formulation Intelligence

Zeaxanthin Buyer's Guide: Grades, Ratios and the Three Macular Carotenoids

The macular pigment is not a single compound — it is a precisely stratified gradient of three carotenoids, each occupying a distinct spatial zone of the macula that corresponds to its specific retinal protective function. Understanding this spatial architecture helps formulators build scientifically credible products and communicate macular health to consumers with precision.

Foveal Core

Zeaxanthin — Central Vision

CAS 144-68-3

Concentrates in the fovea centralis, the 0.5mm zone of highest photoreceptor density. The fovea is responsible for reading, face recognition, and fine detail. Zeaxanthin here acts as both blue-light filter and antioxidant for the metabolically demanding cone photoreceptors. Commonly specified at 2 mg alongside 10 mg lutein.

The carotenoid protecting your most critical vision zone.
Parafoveal Ring

Lutein — Supporting Vision

CAS 127-40-2

Concentrates in the parafoveal and peripheral macular ring around the fovea, providing broader area protection. Commonly specified at 10 mg. The 5:1 lutein:zeaxanthin ratio reflects both dietary intake patterns and macular tissue distribution. Together, lutein and zeaxanthin cover the full macular area.

Always pair with zeaxanthin at the 5:1 ratio for complete macular coverage.
Foveal Centre

Meso-Zeaxanthin — The Missing Carotenoid

Stereoisomer of zeaxanthin

Concentrates at the umbo (very centre of fovea). Found in almost no dietary sources; converted from lutein in retinal tissue. Premium "complete macular pigment" supplements include all three carotenoids. Some populations have low meso-zeaxanthin conversion efficiency and may particularly benefit from direct supplementation. Available from SV Botanica on request.

Emerging third ingredient in premium macular health formulations.
Formulation Tip

Fixed-Ratio Blend Grade

Lutein 10mg + Zeaxanthin 2mg per serving

The pre-blended 5:1 oleoresin supplies both carotenoids as a single ratio-verified input, which removes a blending step and the associated in-process assay. Where your specification calls for a different ratio, custom blends are quoted against it. Any reference to a published study formula on your finished-product label is your own regulatory decision and should be checked for your destination market.

Ratio verification is reported on the CoA for both carotenoids.
Buyer FAQ

Frequently Asked Questions

A 5% marigold oleoresin as the standard softgel-ready grade, a zeaxanthin-enriched marigold fraction, a natural blend at 20% lutein with 4% zeaxanthin, and synthetic meso-zeaxanthin on request. All marigold material is Tagetes erecta.
It is a synthetic grade, distinct from the marigold-derived form, and available on request. It is not interchangeable with the natural material on a botanical declaration, so specify explicitly if your formulation requires it.
It is insoluble in water and soluble in oils, so an oil carrier is required. The 5% oleoresin is supplied softgel-ready for that reason; aqueous formats need a beadlet or emulsion system rather than the oleoresin directly.
Shelf life is 18 months refrigerated and nitrogen-flushed, because the material is oxygen- and light-sensitive. Cold-chain shipping at 2–8°C is available for oleoresin grades and should be specified at enquiry.
The 20% lutein with 4% zeaxanthin blend fixes the ratio upstream, which suits formulators who want a single specified input. Buying separately lets you set your own ratio. Confirm which assay basis your specification uses before comparing the two on price.
Assay against the stated grade, heavy metals at NMT 10 ppm with lead at NMT 0.5 ppm, moisture at NMT 2.0%, microbial limits, and botanical identity for Tagetes erecta.
Yes. The yellow-orange colour carries into the finished format and into softgel shells, which is a consideration for clear or lightly coloured presentations.
5 kg and 25 kg sealed containers with nitrogen headspace for oleoresin grades, and 1 kg opaque nitrogen-flushed aluminium foil bags for crystalline and enriched-concentrate grades. Custom blends and pack sizes are available.
Against your specification and volume. Grade, concentration, whether cold-chain shipping is required and pack size all move the price.
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Supplied as a bulk ingredient for further manufacture. Buyers are responsible for compliance with the regulations of their destination market. This product is not intended to diagnose, treat, cure or prevent any disease.