STRIX™ Bilberry Extract contains Mirtoselect®, the Original Bilberry Extract obtained exclusively from Vaccinium myrtillus L., and standardized to contain 36 % anthocyanosides (equivalent to 25 % anthcoyanidins). Anthyocyanidins are a type of flavonoid with powerful antioxidant properties beneficial to the health of the eyes and the circulatory system.

Numerous studies have been conducted to identify the pharmacological activities of anthocyancoides from Vaccinium myrtillus berries and to assess their clinical efficacy. Most pivotal studies have been carried out with Mitroselect® a standardized bilberry fruit extract containing 36 % anthocyanosides. Pharmacological studies have shown that Mirtoselect® is effective in increasing capillary resistance, reducing abnormal vascular permeability and performing antioxidant activity at the vascular level. There is clinical evidence that the intake of bilberry extract is useful for the recovery of visual acuity and relief of eye fatigue symptoms in case of eye overuse.