This product delivers 4 mg of **astaxanthin** per softgel using the Zanthin branded extract from Haematococcus pluvialis microalgae. Astaxanthin is a carotenoid antioxidant with moderate clinical evidence for reducing eye fatigue, supporting skin against UV-related damage, and improving lipid markers like HDL cholesterol and triglycerides. At 4 mg, you're at the lower end of the researched dose range (4-12 mg), which is sufficient for eye health and general antioxidant benefits but below the 6-12 mg range used in cardiovascular studies.

Zanthin is one of the well-recognized natural astaxanthin sources, and the softgel includes extra virgin olive oil as a carrier fat. This matters because astaxanthin is fat-soluble, meaning your body absorbs it significantly better when consumed alongside dietary fat. The built-in oil base helps with this even if you take it on a lighter meal.

One thing to know: astaxanthin is one of the few carotenoids that can reach the back of your eye directly, which is why it shows up in eye health research alongside ingredients like lutein. If your primary goal is cardiovascular support, you may want to take two softgels daily (8 mg) to move closer to the doses used in lipid studies. Pairing it with omega-3 fatty acids can also improve absorption and provide complementary heart and antioxidant benefits.