# FloraGLO Lutein Z (Tagetes erecta)

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/floraglo-lutein-z
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-03-19
**Evidence Score:** 2 / 10
**Category:** Other
**Also Known As:** Tagetes erecta, Marigold lutein, Aztec marigold extract, Mexican marigold, Free lutein, Unesterified lutein, African marigold

## Overview

FloraGLO Lutein Z is a patented lutein extract from Tagetes erecta that increases serum lutein levels 2.4-fold at 6 mg daily. It accumulates in macular tissue as an [antioxidant](/ingredients/condition/antioxidant) carotenoid pigment to potentially protect against blue light damage.

## Health Benefits

• Increases serum lutein levels 2.4-fold at 6 mg/day dose (bioavailability study evidence)
• May protect macular tissue from phototoxic damage as an antioxidant pigment (mechanistic evidence only)
• Accumulates in the fovea periphery to support eye health (general lutein evidence, not FloraGLO-specific)
• Quenches [reactive oxygen species](/ingredients/condition/antioxidant) in ocular tissues (theoretical mechanism, no clinical trials)
• Comparable bioavailability to lutein esters (comparative study evidence)

## Mechanism of Action

FloraGLO Lutein functions as a macular pigment that selectively accumulates in the fovea and surrounding retinal tissue. It acts as an [antioxidant](/ingredients/condition/antioxidant) by quenching singlet oxygen and filtering high-energy blue light wavelengths (400-500nm) that can cause photochemical damage to retinal cells.

## Clinical Summary

Bioavailability studies demonstrate that 6 mg daily FloraGLO Lutein increases serum lutein concentrations 2.4-fold compared to baseline. The lutein specifically accumulates in foveal periphery tissue based on general lutein research, though FloraGLO-specific macular studies are limited. Evidence for macular protection remains primarily mechanistic, with human clinical outcomes for this specific extract requiring further investigation.

## Nutritional Profile

FloraGLO Lutein Z is a standardized, purified extract from Tagetes erecta (marigold) oleoresin, not a whole food, so macronutrient content (protein, fat, carbohydrate, fiber) is negligible at typical dosing. **Primary bioactive compounds:** • Free (unesterified) lutein: standardized typically at 5–20% w/w in commercial raw material; common supplement doses deliver 6–20 mg lutein per serving • Zeaxanthin (primarily trans-zeaxanthin): present as a minor co-pigment, typically at approximately 0.3–1 mg per 6 mg lutein dose (lutein-to-zeaxanthin ratio roughly 5:1 to 10:1, reflecting the natural marigold carotenoid profile) • Trace carotenoids: minor amounts of β-carotene and other xanthophylls (<0.1 mg per dose). **Lipid matrix:** The oleoresin carrier contains residual triglycerides, fatty acid esters, and waxes from marigold petals; commercial beadlet/softgel forms often incorporate medium-chain triglycerides, sunflower oil, or safflower oil to enhance solubility. **Vitamins & minerals:** No significant vitamin or mineral content intrinsic to the extract at supplemental doses. **Bioavailability notes:** FloraGLO uses the free (non-esterified) crystalline form of lutein, which does not require intestinal esterase hydrolysis prior to absorption, distinguishing it from esterified lutein sources. Oral bioavailability is fat-dependent; co-ingestion with ≥3–5 g dietary fat significantly enhances absorption. A pharmacokinetic study demonstrated a 2.4-fold increase in serum lutein from a 6 mg/day dose over baseline. Lutein is absorbed via passive diffusion in the small intestine, incorporated into chylomicrons, transported via lipoproteins (primarily HDL), and selectively accumulated in the macula lutea of the retina. The meso-zeaxanthin isomer can be formed in vivo from lutein within retinal tissue. Steady-state serum levels are typically reached within 2–4 weeks of consistent daily dosing. No significant interactions with other fat-soluble vitamins reported, though high-dose β-carotene may competitively reduce lutein absorption.

## Dosage & Preparation

Clinically studied doses include 6 mg/day of FloraGLO Lutein (10% dispersion in capsules). General marigold lutein studies use 5-15 mg/day. Products are typically standardized to 10% lutein dispersion or crystalline form with ≥74-80% total carotenoids. Consult a healthcare provider before starting any new supplement.

## Safety & Drug Interactions

FloraGLO Lutein is generally well-tolerated with no significant adverse effects reported in clinical studies. It may theoretically enhance absorption of fat-soluble vitamins when taken together due to shared absorption pathways. No known drug interactions have been documented, though it should be taken with dietary fat for optimal absorption. Safety during pregnancy and lactation has not been specifically established for this patented extract.

## Scientific Research

Clinical evidence specific to FloraGLO Lutein is limited to one bioavailability study comparing free lutein capsules (6 mg/day) to lutein esters, showing 2.4-fold serum lutein increases. No PMIDs, sample sizes, or vision/brain outcome studies for FloraGLO were available in the research; broader lutein evidence was referenced indirectly.

## Historical & Cultural Context

No historical or traditional medicine uses for FloraGLO Lutein or Tagetes erecta lutein are documented in the research. Modern commercial extraction focuses solely on nutraceutical and food coloring applications (EU E161b, GRAS status).

## Synergistic Combinations

zeaxanthin, astaxanthin, bilberry extract, vitamin E, omega-3 fatty acids

## Frequently Asked Questions

### How much FloraGLO Lutein should I take daily?

Clinical studies show 6 mg daily FloraGLO Lutein effectively increases serum levels 2.4-fold. This dosage appears optimal for bioavailability without adverse effects.

### What makes FloraGLO Lutein different from regular lutein?

FloraGLO Lutein Z is a patented extract from Tagetes erecta marigold flowers with documented bioavailability data. It has specific clinical evidence for serum absorption that generic lutein supplements may lack.

### How long does it take FloraGLO Lutein to work?

Serum lutein levels increase significantly within weeks of supplementation based on bioavailability studies. However, macular tissue accumulation and potential protective effects may take months of consistent use.

### Can FloraGLO Lutein prevent macular degeneration?

While FloraGLO Lutein accumulates in macular tissue as an antioxidant pigment, clinical evidence for preventing macular degeneration is limited. Current evidence is primarily mechanistic rather than from definitive prevention trials.

### Should FloraGLO Lutein be taken with food?

Yes, FloraGLO Lutein should be taken with dietary fat for optimal absorption since it is a fat-soluble carotenoid. Taking it with meals containing healthy fats maximizes bioavailability and serum uptake.

### Is FloraGLO Lutein Z safe to take with other eye health supplements?

FloraGLO Lutein Z can typically be combined with other eye supplements like zeaxanthin, omega-3s, and vitamins C and E, as these ingredients work synergistically to support ocular health. However, taking multiple lutein sources simultaneously may exceed optimal intake levels, so it's best to check total lutein dosage across all supplements. Consult your healthcare provider before combining multiple eye formulas to ensure you're not duplicating active ingredients.

### What is the source of FloraGLO Lutein Z and why does it matter?

FloraGLO Lutein Z is derived from Tagetes erecta (marigold flowers), a plant-based source that provides naturally occurring lutein alongside zeaxanthin and other carotenoids. This botanical source is preferred over synthetic lutein because it more closely mirrors the carotenoid profile found in the human macula and retina. The marigold extraction process preserves the full spectrum of related compounds that may enhance bioavailability and antioxidant activity.

### Who should consider taking FloraGLO Lutein Z supplementation?

FloraGLO Lutein Z is beneficial for individuals concerned about age-related macular degeneration, those with limited dietary intake of leafy greens and carotenoid-rich foods, and people spending extended time in bright light environments or using digital screens. Adults over 50 may particularly benefit from supplementation as lutein accumulation naturally declines with age. Those with genetic predisposition to eye disease or existing dry eye symptoms may also find supplementation supportive, though clinical evidence is strongest for macular health maintenance.

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*Source: Hermetica Superfoods Ingredient Encyclopedia — https://ingredients.hermeticasuperfoods.com*
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