LUTEIN (MARIGOLD EXTRACT)
Lutein is a xanthophyll, or naturally occurring carotenoid, found in high quantities in the Marigold Flower.
✓ Helps even skin tone
✓ UV protective properties
✓ Improve skin texture
How it works:
Lutein is an essential component of the eye (e.g. lens/macula), but research has shown that it is also present in the skin, and is responsible for protection against UV induced damage caused by sunlight. Recent clinical studies have demonstrated that lutein is able to block melanin pathways, down regulate cytokines, and promote antioxidants, which promotes tone/texture improvements and improves skin appearance.
Safe and Effective Dosage:
Clinical studies support safe, effective dosages between 6 mg to over 44 mg per day, with the optimal dose at 10 mg.
10 mg at a purity of 5% (this means the formulation contains 200 mg of marigold flower extract, which contains 10 mg of Lutein).
RESEARCH &CLINICAL STUDIES
"Overall skin tone and skin-lightening-improving effects with oral supplementation of lutein and zeaxanthin isomers: a double-blind, placebo-controlled clinical trial"
Purpose: Carotenoids, especially lutein and zeaxanthin isomers (L/Zi), filter blue light and protect skin from environmental factors including high-energy sources. These carotenoids may be able to block the formation of melanin pathways, decrease cytokines, and increase antioxidants.
Subjects and methods: This is a randomized, double-blind, placebo-controlled clinical trial over a 12-week supplementation period. Fifty healthy people (50 healthy subjects were recruited and 46 subjects completed the study) (males and females, age: 18–45 years) with mild-to-moderate dry skin were included in this study. Skin type of the subjects was classified as Fitzpatrick skin type II–IV scale. Subjects were administered with either an oral dietary supplement containing 10 mg lutein (L) and 2 mg zeaxanthin isomers (Zi) (L/Zi: RR-zeaxanthin and RS (meso)-zeaxanthin) or a placebo daily for 12 weeks. The minimal erythemal dose and skin lightening (L*) were measured via the Chromameter®. The individual typological angle was calculated. Subjective assessments were also recorded.
Results: Overall skin tone was significantly improved in the L/Zi group compared to placebo (P<0.0237), and luminance (L*) values were significantly increased in the L/Zi group. Mean minimal erythemal dose was increased with L/Zi supplementation after 12 weeks of supplementation. L/Zi supplementation significantly increased the individual typological angle.
Conclusion: L/Zi supplementation lightens and improves skin conditions.
"Lutein and zeaxanthin in eye and skin health"
Less than 20 of the hundreds of carotenoids found in nature are found in the human body. These carotenoids are present in the body from the foods or dietary supplements that humans consume. The body does not synthesize them.
Among the carotenoids present in the body, only lutein and its coexistent isomer, zeaxanthin, are found in that portion of the eye where light is focused by the lens, namely, the macula lutea.
Numerous studies have shown that lutein and zeaxanthin may provide significant protection against the potential damage caused by light striking this portion of the retina. In the eye, lutein and zeaxanthin have been shown to filter high-energy wavelengths of visible light and act as antioxidants to protect against the formation of reactive oxygen species and subsequent free radicals.
Human studies have demonstrated that lutein and zeaxanthin are present in the skin, and animal studies have provided evidence of significant efficacy against light-induced skin damage, especially the ultraviolet wavelengths. Little was known about the protective effects of these carotenoids in human skin until recently.
This article reviews the scientific literature pertaining to the effects that lutein and zeaxanthin exhibit in the human eye and skin.