Why lutein is extracted from marigold flowers, what "standardized to 5% lutein" means on a label, and how much lutein a VapoCept capsule provides.
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Lutein is a yellow carotenoid, one of the pigments that give many plants their color. A 2023 study in Foods that profiled the petals of ten marigold cultivars describes marigold flower petals as the primary source of lutein for commercial extraction, and notes that the industry uses marigold flowers extensively for natural lutein production for functional food and feed. The same paper describes lutein and zeaxanthin as a pigment in the macula of the human retina.
Tagetes erecta, the large-flowered marigold grown for its orange and yellow blooms. The extract is made from the flowers.
Lutein, a carotenoid. In the petals it occurs largely as lutein esters, which the paper names as the raw material for natural lutein.
"Marigold (Tagetes erecta) (Flower) Extract (std. to 5% Lutein)": a marigold flower extract standardized so that 5% of its weight is lutein.
A standardization tells you how much of a named compound the extract holds. At 5%, every 100 mg of extract carries 5 mg of lutein. On the VapoCept label the marigold extract weighs 25 mg, so the lutein in one capsule comes to about 1.25 mg. The label does not list zeaxanthin separately.
25 mg of marigold flower extract per capsule, the fourth of the six VapoCept ingredients by weight.
About 1.25 mg per capsule (5% of 25 mg). One capsule a day is the label's serving.
VapoCept lists marigold extract alongside glucosamine, ginkgo, turmeric, green tea and bamboo, each with its own amount; the full panel is on the VapoCept ingredients page. The 2023 paper cited here measures lutein in marigold petals and makes no statement about supplements or their safety, so this guide adds no safety note beyond the label's own caution: pregnant or nursing mothers, under-18s and anyone with a known medical condition should consult a physician first.
A 2023 study in Foods describes marigold flower petals as the primary source of lutein for commercial extraction, widely used for natural lutein in food and feed.
That 5% of the extract's weight is lutein. In 25 mg of extract, that is about 1.25 mg of lutein.
About 1.25 mg per capsule, from 25 mg of marigold flower extract standardized to 5% lutein.
No. The VapoCept label names Tagetes erecta, a marigold of a different genus from calendula (Calendula officinalis), which is also called pot marigold.
No. The VapoCept label lists the marigold extract and its 5% lutein standardization only.
VapoCept lists 25 mg of marigold flower extract with glucosamine, ginkgo, turmeric, green tea and bamboo in one daily capsule. The packs, the guarantee and how to order are in the VapoCept buying guide.
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