iFormula -Eye Formula (Singapore)

iFormula Eye Formula provides targeted nutritional support for eye health, delivering lutein and zeaxanthin — the two macular carotenoids that accumulate in the retina’s macula — alongside bilberry extract and other antioxidant compounds. These nutrients support macular function, help filter high-energy blue light, and contribute to long-term eye health, making iFormula particularly relevant for anyone spending extended hours in front of screens or exposed to year-round UV radiation.

What Makes iFormula Different

Lutein and zeaxanthin are not produced by the human body — they must come from dietary sources or supplementation. These two carotenoids are the only ones that selectively accumulate in the macula, the central area of the retina responsible for sharp, detailed vision. They form the macular pigment, which acts as an internal filter for blue light (400–500 nm wavelength) and as a localised antioxidant protecting retinal cells from oxidative damage. The AREDS2 study (Age-Related Eye Disease Study 2), one of the largest eye nutrition studies ever conducted with 4,203 participants over 5 years, confirmed that lutein and zeaxanthin supplementation supports macular health.

Singapore presents a particularly strong case for eye health supplementation. A 2023 survey by the Infocomm Media Development Authority found that Singaporeans average over 12 hours of screen time daily when combining work and personal device use. Blue light exposure from LED screens, smartphones, and office lighting is a constant. Additionally, Singapore’s equatorial location means UV radiation is intense year-round — UV index readings regularly reach 11+ (classified as “extreme” by the WHO) — and UV exposure affects not just skin but also eye health over time. The addition of bilberry extract in iFormula provides anthocyanins, which support microcirculation in the small blood vessels of the eye and have been studied for their role in reducing eye fatigue.

Key Ingredients

Lutein: A xanthophyll carotenoid that concentrates in the macula and lens of the eye. Lutein absorbs blue light and acts as an antioxidant within retinal tissue. Dietary sources include dark leafy greens (kale, spinach), but most diets provide only 1–2 mg daily — well below the 10 mg used in the AREDS2 study. iFormula bridges this dietary gap with a concentrated, supplemental dose.

Zeaxanthin: The second macular carotenoid, which concentrates specifically in the fovea — the very centre of the macula where visual acuity is highest. Zeaxanthin and lutein together form the macular pigment layer. The AREDS2 study used a 2 mg zeaxanthin dose alongside 10 mg lutein, and this 5:1 ratio has become a benchmark in eye health supplementation.

Bilberry Extract (Vaccinium myrtillus): Rich in anthocyanins — the pigments responsible for bilberry’s deep purple colour. Anthocyanins support the integrity of blood vessel walls and microcirculation. Studies have examined bilberry’s effects on visual fatigue, particularly in individuals with high screen exposure. Bilberry has a long history of use in European herbal medicine for eye support, dating back to RAF pilots in World War II who reportedly consumed bilberry jam before night missions.

How to Use

Take one capsule daily with a meal containing some dietary fat — lutein and zeaxanthin are fat-soluble carotenoids, so absorption improves significantly when consumed with fat. Even a small amount of dietary fat is sufficient: an egg, a few nuts, or avocado at the same meal will do. Each bottle provides a 30-day supply. Macular pigment density builds gradually with consistent supplementation — studies measuring macular pigment optical density (MPOD) typically show meaningful increases after 3–6 months of daily lutein and zeaxanthin intake. Consistent long-term use is more beneficial than short-term, high-dose bursts. Store in a cool, dry place away from Singapore’s ambient heat and humidity.

Frequently Asked Questions

How is iFormula shipped in Singapore?
Orders ship from the official Nu Skin Singapore warehouse. Standard shipping is S$4.99, or free on orders over S$99. Delivery takes 1–3 business days to most Singapore addresses.

Is iFormula a replacement for eye check-ups?
No. iFormula provides nutritional support for eye health but does not replace regular eye examinations. Singapore’s National Eye Centre recommends comprehensive eye exams every 1–2 years for adults. Supplementation supports long-term macular health but cannot diagnose or treat existing eye conditions.

Can I take iFormula if I already eat a lot of vegetables?
Even vegetable-rich diets typically provide only 1–2 mg of lutein daily. The AREDS2 study used 10 mg lutein and 2 mg zeaxanthin — levels difficult to achieve consistently through diet alone (you would need to eat approximately 200g of cooked kale daily). iFormula ensures a consistent, concentrated dose regardless of daily dietary variation.

How long before I notice a difference?
Eye health supplementation works at a cellular level — macular pigment density builds gradually. Studies measuring MPOD typically show significant increases after 3–6 months of consistent daily supplementation. Some users report reduced eye fatigue within the first few weeks, particularly those with high screen exposure, but the core macular health benefits are cumulative and long-term.

Is iFormula suitable for children?
iFormula is formulated for adults. For children with high screen exposure, ensuring adequate dietary intake of lutein-rich foods (spinach, broccoli, eggs) is generally recommended as a first step. Consult a paediatrician before giving eye health supplements to children under 18.

Important Information

Important Information: This product is not intended to diagnose, treat, cure, or prevent any disease. Consult your healthcare professional before use, especially if you are pregnant, nursing, taking medication, or have a medical condition. Health supplements are regulated by the Health Sciences Authority (HSA) of Singapore. Individual results may vary. Store in a cool, dry place away from direct sunlight — this is especially important in Singapore’s tropical climate.

NuBest Skin is an Independent Nu Skin Brand Affiliate. This content is not produced or endorsed by Nu Skin Enterprises Inc.

Sources & References

Product information sourced from official Nu Skin product documentation. AREDS2 study referenced from the National Eye Institute (NEI), National Institutes of Health, 4,203 participants, 5-year study, 2013 results publication. Singapore screen time data referenced from IMDA Annual Survey on Infocomm Usage, 2023. UV index data for Singapore referenced from the National Environment Agency (NEA) historical UV index records. Bilberry anthocyanin research referenced from peer-reviewed studies published in the Journal of the Science of Food and Agriculture and Molecular Vision.

Reviewed by the NuBest Skin Editorial Team. Last updated: April 2026.