First of all, it has anti-aging and antioxidant effects. This is because it contains anthocyanin, a powerful natural antioxidant, which can soften blood vessels, eliminate inflammation in the body, help damaged collagen connection, strengthen skin elasticity and scavenge free radicals. Second, as mentioned above, it can eliminate eye fatigue and protect the optic nerve. It can promote the regeneration of rhodopsin in retinal cells, effectively protect optic nerve, prevent myopia, prevent cell damage, effectively protect fundus blood vessels and relieve eye fatigue. As for the side effects of blueberry capsules, as long as they are taken orally according to the instructions, there are no side effects. Everyone knows the efficacy and side effects of blueberry capsules. This is a soft capsule, which is extracted from wild blueberry juice. Only 3 grams of blueberry is extracted per kilogram, so it is a concentrated essence, with high anthocyanin content, good effect and convenient taking and storage. It is a very good health care product.