Modern living utilizes electronic devices to an increasing extent, (for example) laptops, smartphones and tablets. Although technology creates productivity and connectivity, increased use of visual display terminals (VDTs) raises issues like digital eye strain (DES) and other vision conditions.

Astaxanthin Ingredient Linked to Improved Visual Function

Ingredient Intelligence Oct 07, 2025

Modern living utilizes electronic devices to an increasing extent, (for example) laptops, smartphones and tablets. Although technology creates productivity and connectivity, increased use of visual display terminals (VDTs) raises issues like digital eye strain (DES) and other vision conditions.

Astaxanthin, a naturally occurring red carotenoid pigment derived from a microalgae (Haematococcus pluvialis) is one nutraceutical ingredient formulation and innovation that has received attention for addressing these issues and is best known for its powerful antioxidant capacity. Astaxanthin has been studied for its potential to promote eye health and may aid in preventing oxidative damage as well as age-related declines in vision.

In a recent clinical trial featured in the Journal of Clinical Biochemistry and Nutrition, BGG World recently gained attention for astaxanthin branded as AstaZine Natural Astaxanthin and its potential benefits for visual function, especially for individuals over 40. This highlights the growing role of nutraceutical product development focused on vision health. [1]

Study Design

Scientists have completed a controlled clinical study, with 60 healthy adults. Most of the adults reported daily use of visual display terminals and were therefore at greater risk of developing digital eye strain.

  • Participants: 60 healthy adults
  • Groups:Placebo or AstaZine Natural Astaxanthin (9 mg/day astaxanthin)
  • Duration: 6 weeks
  • Primary Assessment: Tests on visual function, focusing on visual acuity and, pupil constriction rate

The design was randomized split into placebo vs. (natural) astaxanthin; the design represents a strong basis for establishing or determining expected effects of astaxanthin supplementation. [2]

Key Finding

The least expected or promising benefit was observed for participants aged 40 and older.

  • Improvements in visual acuity (the ability to see fine detail clearly).
  • Pupil constriction rate in the dominant serves as an indicator of enhanced neural response and muscular contraction.
  • Decreases in their oxidative stress marker believed to be caused by prolonged screen use.

Overall, these data demonstrate that astaxanthin supplementation provides measurable support to ocular health, important for health-conscious product development targeting age-related visual disturbances.

Mechanism of Action

Astaxanthin is a xanthophyll carotenoid with notable antioxidant properties. Unline other antioxidants that have effects primarily in one section of a cell, astaxanthin settles in a location throughout lipid membranes, permitting it to address free radicals both inside and outside of the cell wall.

In terms of ocular health, this is particularly noteworthy because:

  • Screen-induced oxidative stress increases reactive oxgen species (ROS) in ocular tissues with extended exposure.
  • ROS can impair ciliary muscle function which is responsible for focusing of the eye and visual acuity in the aging population.
  • Astaxanthin promotes mitochondrial function in ocular tissues while maintaining protection of delicate muscle fibers and retinal tissues from damage from oxidative stress.

Thus, astaxanthin protects the lens, retina, and ciliary muscles by reducing oxidative stress and enhancing blood flow to ocular tissues, a key focus in nutraceutical ingredient formulation and innovation for eye care products. [3] 

Study Observations: Participant Outcomes

The most significant findings were noted in individuals aged over 40, a group that is most likely to have been experiencing age-related decline in ocular functioning. This indicates that astaxanthin not only has the potential to improve outcomes from screens in the short term but could also offer some level of protection against age-related changes in ocular degeneration.

Outcome Measure

Placebo Group

Astaxanthin Group (9 mg/day)

Observed Effect

Visual Acuity (dominant eye)

No significant change

Significant improvement

Better clarity of detail, less blurriness

Pupil Constriction Rate

No change

Increased responsiveness

Better adaptation to light

Oxidative Stress Markers

Unchanged

Reduction observed

Reduction of free radical injury

Eye Fatigue (subjective)

No improvement

Reported decrease

Longer comfortable use of a screen

The significant effects in participants over 40 suggest astaxanthin not only aids short-term outcomes from screen use but also offers protection against age-related declines, essential for nutraceutical product development targeting aging eyes. [4]

Broader Implications for Eye Health

The clinical trial produces three essential findings which are discussed below.

  1. Age-Related Visual Decline

The aging process weakens the ciliary muscles and other ocular muscles which results in reduced ability to focus on near objects and causes eye strain. The antioxidant properties of astaxanthin help protect muscles from damage while preserving their functional capabilities.

  1. Digital Eye Strain (DES)

The global population’s increasing screen time has made DES prevention a medical necessity and a lifestyle requirement for people of all ages. Astaxanthin functions as a dietary supplement which helps people who want to prevent DES while they follow screen break rules and use blue light protection.

  1. Preventive Nutrition

The study supports astaxanthin as a preventive dietary supplement which helps reduce eye strain while protecting visual performance and decreasing the chances of developing permanent eye problems through its antioxidant properties. [5]

Astaxanthin Ingredient Linked to Improved Visual Function

Expert Commentary

Yanmei Li PhD serves as BGG’s Global Chief Scientific Officer who stated:

“The AstaZine formulation has appeared in two separate studies which investigated visual health benefits. Doctors believe that eye muscles weaken with age which results in diminished detail vision. People who spend excessive time using computers and smartphones experience this condition most severely. AstaZine supplements provide an effective solution to treat this widespread condition which affects numerous people in our modern digital world.”

Li’s comments emphasize the importance of astaxanthin not only for therapeutic use but also for everyday individuals in modern, screen-heavy lifestyles.  [6]

Other Clinical Evidence on Astaxanthin and Eye Health

The present study contributes to a few other prior studies linking astaxanthin to beneficial effects on eye health. Research studies have demonstrated multiple positive outcomes from astaxanthin supplementation.

  • Improved Retinal Blood Flow: Astaxanthin has been shown to enhance microcirculation in the retina, supporting nutrient delivery and protection of photoreceptor cells.
  • Reduction in Eye Fatigue Symptoms: Prior human trials found that astaxanthin supplementation alleviated subjective symptoms of eye fatigue among heavy VDT users.
  • Synergistic Role with Other Nutrients: Combined formulations of astaxanthin with lutein or zeaxanthin demonstrated greater support for macular health and protection against light-induced oxidative injury.

This expands the scientific foundation for nutraceutical ingredient formulation and innovation in eye health supplementation. [7]

Applications for Nutraceutical and Supplement Industry

The research results from this study create substantial market opportunities for the nutraceuticals market AstaZine as a scientifically backed visual health supplement for people aged 40 and above who and functional foods industry.

  1. Positioning for Eye Health
    The nutraceutical industry should work on screens.
  2. Gaining Attention in the Market for Digital Eye Health
    Health providers have now recognized digital eye strain as a common condition, leading consumers to search for eye health supplement for prevention.
  3. Consideration for Formulation
    Due to its hydro-soluble properties, it is necessary to choose a delivery systems that are suitable for astaxanthin in order to improve absorption and ultimately efficacy, oil-based soft gels and emulsions are ideal for absorption and delivery.

Limitations of the Study

While the clinical trial results are promising, several limitations need to be acknowledged:

  • Small Sample Size: Only 60 participants were tested. Larger studies are needed for more definitive conclusions.
  • Short Duration: Six weeks is relatively short; long-term supplementation data would provide stronger support.
  • Age-Specific Benefits: Improvements were clearly measurable only in individuals over 40, suggesting supplementation may be more preventive than corrective in younger users.
  • Mechanistic Analysis: Although oxidative stress reduction is a likely mechanism, direct measurement of ciliary muscle strength and mitochondrial function would strengthen findings. [8] 

Future Directions in Research

To build on this evidence, future studies should consider:

  • Clinical studies of longer duration of 6–12 months.
  • Larger and more diverse populations studied across numerous locations.
  • Combination studies (astaxanthin with lutein, zeaxanthin, and omega-3 fatty acids).
  • Biomarkers tracking more detailed assessments of changes in oxidative stress and vascular health of ocular tissues. [1]

Conclusion

The new clinical data confirms the role of AstaZine Natural Astaxanthin in enhancing visual function in the adult population, especially those over 40 years old, who are more susceptible to age-related eye strain and declining muscle strength in their eyes. Astaxanthin proves its efficacy as a nutraceutical for eye health, through its capacity to improve visual measures, enhance pupil responses, and reduce oxidative stress.
In our screen-driven world, astaxanthin supplementation offers a simple, effective strategy to safeguard vision. As ongoing research in Food Research Lab expands the evidence base, astaxanthin is poised to remain a cornerstone in advanced health-conscious product development and disease specific product development for ocular care.