Zeaxanthin VS Astaxanthin: Which One Is Better?

Zeaxanthin VS Astaxanthin

Zeaxanthin VS Astaxanthin: Which One Is Better?

Zeaxanthin and astaxanthin are both plant-based carotenoids. Both contain high levels of antioxidants and provide a variety of health benefits.

Zeaxanthin VS Astaxanthin: Color Changes And Source Differences

Zeaxanthin is known for its unique yellow color. It is commonly found in plants and vegetables such as corn, cantaloupe, and carrots.

Despite this unique color, zeaxanthin is the most common lutein (yellow pigment) found in dark green leafy vegetables, including kale, spinach, and broccoli.

Zeaxanthin is also one of the most common carotenoids found in nature. It is synthesized by plants and some microorganisms.

People can get it by eating plenty of fruits and vegetables.

Natural astaxanthin powder is known as the “King of Carotenoids” because of its powerful source of antioxidants. It is an orange-red pigment.

The natural environment and climate of the Himalayas are ideal for the growth of Haematococcus pluvialis, a microalgae that contains astaxanthin. While algae are where astaxanthin is most concentrated, it is also found in fish such as salmon, trout, and various shellfish.

What Are Different Healthy Benefits Between Them?

Zeaxanthin Benefits

One of the biggest differences between zeaxanthin and astaxanthin is that zeaxanthin and lutein are the only carotenoids that accumulate in the retina. Therefore, it greatly benefits eye health by protecting the eyes from inflammation and free radicals.

  • It can also act as a natural barrier.

It prevents the absorption of excess light energy, like ultraviolet rays from the sun and blue light emitted by electronic devices. Due to modern society’s heavy reliance on screens, eye strain, and its associated pain are common among people of all ages. This eye strain can lead to side effects such as headaches, dry eyes, eye strain, blurred vision, and neck and shoulder fatigue.

According to researchers at Fordham University, zeaxanthin helps filter out the blue light emitted from these electronic screens and protects eye tissue from singlet oxygen damage. Their study also provides evidence that this carotenoid may help reduce the risk of irreversible blindness.

  • It helps in treating various eye-related conditions and diseases.

Eye-related conditions and diseases include eye fatigue and aging, uveitis, macular degeneration, cataracts, and diabetic retinopathy.

Among them, uveitis is a general term for ocular inflammation affecting different eye parts. Researchers from the University of Texas Medical Branch at Galveston explored several antioxidants’ role in reducing eye inflammation. Their data showed that carotenoids, in particular, protect against free radicals and help regulate inflammation caused by oxidative stress.

Macular degeneration usually occurs in older adults and eventually leads to vision loss. Increased dietary intake of zeaxanthin and lutein may prevent advanced macular degeneration. Another study by the Department of Ophthalmology and Visual Sciences showed that a diet rich in these carotenoids may prevent intermediate macular degeneration in healthy women up to 75.

Cataracts are another common eye disease that usually occurs later in life. A study by the University of Melbourne, Australia, found an inverse correlation between high dietary intake of lutein-zeaxanthin and cataract prevalence. Other research suggests that consuming a diet of zeaxanthin vegetables may help prevent cataract formation and/or slow their growth.

  • It can potentially inhibit diabetic retinopathy.

Retinopathy causes vision loss and damage. A study from the Kresge Eye Institute in Detroit, Michigan, discusses excessive oxidative damage as a cause of diabetic retinopathy.

By supplementing zeaxanthin, results showed it significantly inhibited damage and elevated vascular endothelial cell growth factors, potentially inhibiting retinopathy development in diabetic patients.

Astaxanthin Benefits

Zeaxanthin has been shown to benefit primarily eye health. However, astaxanthin has a wider range of health benefits.

  • It is good for heart health.

Australian researchers have shown that astaxanthin supplements can help reduce blood clots and plaque formation and lower fatty acids and blood pressure.

The National Institute of Health and Nutrition in Tokyo has evidence that astaxanthin helps prevent atherosclerosis. Plaque buildup often leads to serious heart problems such as angina and myocardial infarction.

  • It helps with skin health.

Algae is known for its skincare benefits when used as a topical solution. Natural Astaxanthin helps skin health from the inside out. For example, when taken as a chewable tablet, astaxanthin can reduce age spots, wrinkles, and fine lines by inhibiting the aging effects of the sun and preventing moisture loss that leads to dry, rough skin tone and texture.

  • It protects joint health.

Astaxanthin supplements have also reduced pain and joint degeneration associated with carpal tunnel syndrome and osteoarthritis. Due to its activity in inhibiting oxidative stress and reducing inflammation, studies have shown it to be effective in reducing the effects of joint pain.

  • It is used to regulate immune responses.

A collaborative study between Inha University in South Korea, La Haye Labs, Inc. in Redmond, and Washington State University showed that taking astaxanthin (two or eight milligrams) daily for eight weeks helped subjects reduce inflammation and oxidative damage symptoms. At the same time, DNA damage markers are reduced over the first four weeks.

Zeaxanthin VS Astaxanthin: Which One Is Better?

It’s safe to say that zeaxanthin and astaxanthin have many different health benefits, proven and supported by research. But astaxanthin covers a much wider spectrum of benefits.

In addition, astaxanthin is beneficial to accumulating macular carotenoids, such as zeaxanthin etc., in the retina. It helps protect eyes from blue ray damage and age-related vision problems. Therefore, combining zeaxanthin with astaxanthin together can provide better eye protection.

Vitamin K2 Supplements: It May Promote Retinal Health.

In addition to zeaxanthin, natural astaxanthin, lutein, DHA, and other ingredients, what can be used to help with eye problems? Nutri Avenue, a supplier with decades of experience in the supplement ingredient industry, recommends Vitamin K2.

In the past, people usually thought that vitamin K2 was a nutrient for heart and bone health. However, new research has uncovered how vitamin K2 benefits vision health. Matrix Gla protein is abundantly expressed in the eye and maintains the structural integrity of the trabecular meshwork, sclera, and retinal ganglion cells. In mouse experiments, matrix Gla protein is also abundantly expressed in retinal microvessels and exhibits anti-calcification and anti-dystrophic properties.

The study “Inactive matrix Gla protein is a novel circulating biomarker for predicting narrowing of human retinal arterioles” was published in Scientific Reports. The trial randomly recruited 935 participants (50.3% female, mean age 40.9 years) and followed them for 11 years. Retinal arteriolar diameter was assessed by nonpupillary retinal photography.

Results show that circulating inactive matrix Gla protein is a long-term predictor of retinal arteriolar diameter and that vitamin K2 supplementation may promote retinal health. It is also pointed out that activated matrix Gla protein is an effective inhibitor of arterial calcification and helps maintain the integrity of renal and myocardial microcirculation.

Nutri Avenue provides vitamin k2 powder, astaxanthin, zeaxanthin, lutein, and a series of supplement ingredients related to eye protection. Support related supplement products, such as astaxanthin supplements, etc., at wholesale prices, to launch high-quality products on the market. Welcome to come for a consultation.


  1. Wei FF et al. “Inactive matrix Gla protein is a novel circulating biomarker predicting retinal arteriolar narrowing in humans.” Scientific Reports, vol. 8, no. 1 (Oct 10, 2018): 15088

Share this post with your friends

Get a Free Quote

Stay In Touch

How can we help? Get free samples, pricing and stock list.

USA address
1641 W Main St, Ste 222, Alhambra, CA 91801
China address:
Room 209 , Huana Business Center , NO 1733 Lianhua Road , Minhang District , Shanghai , China 201103

Top Sellers

Nutri Avenue

how can we help ?

Bulk raw Ingredients Supplier

Nutri Avenue

Leave your details below, and let us help you get fresh, high-quality ingredients ASAP.