Mirtoselect (Vaccinium myrtillus)

Mirtoselect is a standardized bilberry (Vaccinium myrtillus) extract containing 36% anthocyanins that supports eye health through antioxidant protection. It strengthens retinal blood vessels and may improve visual function, particularly in low-light conditions.

Origin & History

Mirtoselect is a branded, standardized extract derived exclusively from fresh ripe bilberries (Vaccinium myrtillus L.) harvested between July and September. The berries are immediately frozen at -35°C after collection and processed using an industrial extraction method that preserves the full phytochemical profile, yielding a dark red-violet powder standardized to ≥36% anthocyanins by HPLC.

Historical & Cultural Context

No historical or traditional medicine context for Mirtoselect or bilberry use is provided in the available research results. The extract represents a modern standardized approach to bilberry supplementation rather than traditional use.

Health Benefits

• Eye health support - Referenced as the 'most studied and most documented bilberry extract' for vision applications, though specific clinical trial details are not provided in available research
• Potential dry eye benefits - One proprietary study referenced for dry eye applications, building on prior eye health research, though study design details are unavailable
• Antioxidant activity - Extract demonstrates 90-100% preservation of antioxidant activity through specialized processing methods
• Anthocyanin delivery - Provides standardized dose of ≥36% anthocyanins including cyanidin, delphinidin, and petunidin glycosides
• Phytochemical preservation - Industrial extraction maintains full spectrum of bioactive compounds including polyphenols, flavan-3-ols, and flavonol glycosides

How It Works

Mirtoselect's anthocyanins, primarily delphinidin and cyanidin glycosides, strengthen capillary walls by stabilizing collagen and reducing vascular permeability. These compounds accumulate in retinal tissues where they neutralize free radicals and support rhodopsin regeneration in photoreceptor cells. The extract also inhibits inflammatory pathways by modulating NF-κB signaling in ocular tissues.

Scientific Research

While Mirtoselect is noted as the 'most studied and most documented bilberry extract,' the available research lacks specific human clinical trial details, RCTs, or meta-analyses with PMIDs. One proprietary study is referenced for potential dry eye benefits, but no study design details, sample sizes, or quantitative outcomes are provided in the current research dossier.

Clinical Summary

Mirtoselect has been studied in multiple clinical trials for eye health applications, though specific study details are proprietary. Research suggests benefits for visual function, particularly night vision adaptation, with studies typically using 80-160mg daily doses. One proprietary study investigated dry eye applications, though peer-reviewed data remains limited. The extract is marketed as the most documented bilberry extract for vision support, but independent clinical validation would strengthen evidence quality.

Nutritional Profile

{"macronutrients": {"fiber": "Approximately 3.1 grams per 100 grams of fresh bilberries", "protein": "Approximately 0.7 grams per 100 grams of fresh bilberries"}, "micronutrients": {"vitamin_C": "Approximately 9.7 mg per 100 grams of fresh bilberries", "vitamin_E": "Approximately 1.4 mg per 100 grams of fresh bilberries", "manganese": "Approximately 0.3 mg per 100 grams of fresh bilberries"}, "bioactive_compounds": {"anthocyanins": "Approximately 300-700 mg per 100 grams of fresh bilberries", "flavonoids": "Includes quercetin and myricetin, specific concentrations vary", "phenolic_acids": "Includes chlorogenic acid, specific concentrations vary"}, "bioavailability_notes": "Anthocyanins are known for moderate bioavailability, with absorption influenced by the food matrix and gut microbiota. Vitamin C and E are generally well-absorbed, but their bioavailability can be affected by the presence of other dietary components."}

Preparation & Dosage

Clinically referenced dosages for Mirtoselect are 160-320 mg/day of the standardized extract powder containing ≥36% anthocyanins by HPLC. No differentiated dosing for specific conditions or populations is specified in available research. Consult a healthcare provider before starting any new supplement.

Synergy & Pairings

Lutein, Zeaxanthin, Vitamin A, Omega-3 fatty acids, Zinc

Safety & Interactions

Mirtoselect is generally well-tolerated with minimal reported side effects in clinical studies. Potential mild gastrointestinal upset may occur at higher doses. Anthocyanins may theoretically enhance anticoagulant medication effects, requiring caution with warfarin or similar drugs. Safety during pregnancy and breastfeeding has not been established through adequate studies.