Cardiovascular Health

Working around the clock, the cardiovascular system is continually exposed to oxidative and mechanical stress that challenge its normal function. A 2021 review of 11 clinical studies highlighted that astaxanthin supports healthy circulation, helps maintain cholesterol and triglycerides already within a healthy range, and supports healthy blood pressure and vascular function.[5] It works in two main ways: by providing antioxidant protection and promoting a balanced inflammatory response.[5,6]

Cognitive Function and Brain Health

The central nervous system—made up of the brain and spinal cord—uses about 25% of the body’s energy. Its high oxygen consumption makes it especially vulnerable to oxidative stress.*[7] Astaxanthin crosses the blood-brain barrier, enabling it to provide antioxidant protection to brain tissue.*[8] Clinical research shows it supports episodic memory, working memory, and response time—an indicator of focus and mental clarity.*[7,1]

Immune  System Health

The immune system works around the clock to protect the body from harm, but it is constantly challenged by stress, activity, and environmental factors. A double-blind, placebo-controlled study in healthy young women found that daily supplementation with 8 mg astaxanthin supported normal white blood cell activity and promoted healthy immune function.[9]

Healthy Vision and Visual Performance

The eyes are especially vulnerable to oxidative stress because they are constantly exposed to light — both UV light from the sun and blue light from screens — and contain high levels of polyunsaturated fatty acids. Clinical research has shown that astaxanthin supports healthy vision and visual performance.6 It is believed to work by protecting the delicate structures of the eyes from oxidative stress and supporting healthy ocular blood flow.

Exercise Recovery

While physical activity is essential to overall health, it also creates physiological stress on the body, affecting immune function, creating oxidative stress, and putting strain on muscles. In a study in trained soccer players, astaxanthin supplementation encouraged recovery from exercise-related stress. Compared to placebo, it maintained normal immune defense, protected against oxidative stress, and supported muscle recovery.

Healthy Metabolic Function

Maintaining metabolic homeostasis rests on healthy glucose and lipid metabolism. When the body is processing glucose and lipids well, it’s easier to maintain blood sugar balance, healthy body weight, and blood lipids already within a healthy range. A research review noted that astaxanthin supports healthy insulin sensitivity and glucose metabolism, protects lipids from oxidation, supports healthy lipid metabolism, and helps maintain already-normal cholesterol and triglycerides.[3]

Skin Health and Appearance

Astaxanthin has been called “nature’s sunscreen.” The microalgae Haematococcus pluvialis produces this bright-red pigment as a protective response against oxidative stress from UV radiation, and similar protective effects are conferred on people who consume it. A review of 11 clinical trials on astaxanthin found the carotenoid helps reduce the appearance of fine lines and wrinkles, protects skin from free radical damage caused by UV exposure, and helps nourish skin hydration and elasticity.[10]