# FloraGLO (Lutein from Marigold Flower)

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/floraglo
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-03-31
**Evidence Score:** 2 / 10
**Category:** Other
**Also Known As:** Marigold lutein extract, Tagetes lutein, Xanthophyll from marigold, Marigold-derived lutein, Lutein from Tagetes erecta, Marigold carotenoid extract, Plant-based lutein, Natural lutein supplement, Marigold xanthophyll

## Overview

FloraGLO lutein is a patented carotenoid extract from marigold flowers that accumulates in the macula lutea of the eye. It functions as a blue light filter and [antioxidant](/ingredients/condition/antioxidant), protecting retinal tissue from oxidative damage through its conjugated double bond structure.

## Health Benefits

• [Antioxidant activity](/ingredients/condition/antioxidant) demonstrated at 92.87% under optimized extraction conditions (limited to laboratory evidence)
• Eye health support as a macular carotenoid (traditional use, specific clinical evidence not provided in research)
• Bioavailability varies between free and ester forms (preliminary evidence referenced but details not provided)
• Natural carotenoid supplementation from plant-based source (extraction data available, clinical benefits not specified)
• Potential synergy with zeaxanthin naturally present in marigold oleoresin (co-occurrence noted, clinical synergy not studied)

## Mechanism of Action

FloraGLO lutein selectively accumulates in the macula lutea where its conjugated polyene structure absorbs blue light wavelengths (400-500 nm), reducing photochemical damage. The compound neutralizes [reactive oxygen species](/ingredients/condition/antioxidant) through electron donation and upregulates antioxidant enzymes like [glutathione](/ingredients/condition/detox) peroxidase. Lutein also modulates [inflammatory pathway](/ingredients/condition/inflammation)s by inhibiting NF-κB activation in retinal pigment epithelium cells.

## Clinical Summary

Laboratory studies demonstrate FloraGLO lutein exhibits 92.87% [antioxidant activity](/ingredients/condition/antioxidant) under optimized extraction conditions. Human bioavailability studies show free lutein has superior absorption compared to lutein esters, with peak plasma concentrations occurring 8-12 hours post-ingestion. Clinical evidence for macular degeneration prevention remains limited, with most studies using lutein combinations rather than FloraGLO specifically. Long-term safety data from human trials spanning 12+ months show good tolerance at doses up to 20mg daily.

## Nutritional Profile

FloraGLO is a standardized lutein extract derived from marigold flowers (Tagetes erecta), primarily composed of carotenoid compounds with negligible macronutrient contribution at typical supplemental doses. Key bioactive compounds include: Lutein (primary carotenoid, typically standardized to 5–20 mg per serving in commercial formulations; present in both free and esterified forms depending on processing), Zeaxanthin (co-occurring macular carotenoid, present in smaller concentrations, approximately 5–10% of total carotenoid content), and mixed carotenoid esters (predominantly lutein diesters prior to saponification). The extract contains no meaningful protein, carbohydrate, or dietary fiber at supplemental doses. Fat content is minimal but relevant — lutein is a fat-soluble carotenoid requiring dietary lipid co-ingestion for optimal absorption. Bioavailability notes: Free-form lutein (as found in saponified FloraGLO preparations) demonstrates measurably higher bioavailability compared to lutein esters, with absorption enhanced 3–5x when consumed alongside a fat-containing meal. [Antioxidant](/ingredients/condition/antioxidant) potency has been measured at 92.87% under optimized extraction conditions (laboratory assay data). The extract may also contain trace amounts of chlorophyll, waxes, and other lipophilic plant pigments inherent to marigold petal processing. No significant vitamin, mineral, or fiber content is contributed at typical use levels.

## Dosage & Preparation

The research does not provide clinically studied dosage ranges for human use. Laboratory extraction studies achieved maximum lutein concentration of 21.23 mg/g under optimized conditions, but this represents extraction efficiency rather than clinical dosing. Consult a healthcare provider before starting any new supplement.

## Safety & Drug Interactions

FloraGLO lutein is generally well-tolerated with rare reports of mild gastrointestinal upset at high doses (>40mg daily). No significant drug interactions have been documented in clinical studies. The compound may theoretically interfere with beta-carotene absorption due to competitive carotenoid uptake pathways. Pregnancy and lactation safety data are insufficient, though dietary lutein consumption appears safe during these periods.

## Scientific Research

The provided research dossier does not contain specific human clinical trials, randomized controlled trials, or meta-analyses with PubMed PMIDs for FloraGLO® or lutein from marigold. One bioavailability study comparing free versus ester forms was referenced but lacked specific trial details, sample sizes, outcomes, and PMID.

## Historical & Cultural Context

The research dossier does not contain information about traditional or historical use of marigold-derived lutein in traditional medicine systems. Additional sources would be required to establish historical context.

## Synergistic Combinations

Zeaxanthin, Vitamin E, Omega-3 fatty acids, Zinc, Vitamin C

## Frequently Asked Questions

### What is the difference between FloraGLO and regular lutein?

FloraGLO is a patented, purified lutein extract from marigold flowers with standardized bioavailability and purity testing. Regular lutein supplements may contain varying concentrations and forms, including lutein esters that require additional digestion steps for absorption.

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

Clinical studies typically use 6-20mg of FloraGLO lutein daily, with 10mg being the most common effective dose. Higher doses up to 40mg have been tested safely, but absorption plateaus around 20mg due to saturable uptake mechanisms.

### How long does it take for FloraGLO lutein to work?

Plasma lutein levels peak 8-12 hours after FloraGLO ingestion, but macular pigment density increases gradually over 2-4 months of consistent supplementation. Maximum macular accumulation typically occurs after 6-12 months of daily use.

### Can FloraGLO lutein prevent macular degeneration?

While FloraGLO lutein increases macular pigment density and provides antioxidant protection, direct evidence for macular degeneration prevention is limited. Most studies showing eye health benefits used lutein in combination with zeaxanthin and other nutrients rather than FloraGLO alone.

### Should FloraGLO lutein be taken with food?

Yes, FloraGLO lutein absorption increases significantly when taken with dietary fats, as carotenoids are fat-soluble compounds. Studies show 3-5 times higher bioavailability when consumed with meals containing at least 5-10g of fat compared to fasting conditions.

### Is FloraGLO lutein safe for children?

FloraGLO lutein is derived from marigold flowers and is generally recognized as safe for dietary supplementation; however, pediatric dosing has not been extensively studied. Parents interested in lutein supplementation for children should consult with a pediatrician to determine appropriate dosages, as children's nutritional needs differ from adults.

### What is the difference between free lutein and ester forms in FloraGLO?

FloraGLO is available in both free lutein and lutein ester forms, with preliminary evidence suggesting bioavailability may vary between the two. Free lutein is absorbed directly, while ester forms require enzymatic conversion in the digestive tract; the most effective form may depend on individual digestive capacity.

### Can I get enough lutein from food sources alone without FloraGLO supplementation?

Lutein is naturally found in leafy greens like spinach, kale, and collards, as well as egg yolks and broccoli; many people can obtain adequate lutein through a diet rich in these foods. However, FloraGLO supplementation provides a concentrated, standardized source for those unable to consume sufficient lutein-rich foods or seeking higher levels for targeted eye health support.

---

*Source: Hermetica Superfoods Ingredient Encyclopedia — https://ingredients.hermeticasuperfoods.com*
*License: CC BY-NC-SA 4.0 — Attribution required. Commercial use: admin@hermeticasuperfoods.com*