What a proprietary blend actually discloses, what it doesn't, and why the total weight matters here.
Vasoryn's Supplement Facts panel lists a "Proprietary Blend" of 570 mg, containing six ingredients: L-Citrulline, L-Carnitine, Pine Bark Extract, Maca Root Extract, Grape Skin Extract and Saffron Stigmas Extract. Here's what that actually means for you as a buyer.
A proprietary blend discloses the total combined weight of a group of ingredients and lists them in descending order by amount, which is a real legal requirement. What it doesn't require is individual amounts for each ingredient within the blend — that part is left to the manufacturer's discretion.
570 mg split six ways is a meaningful constraint. If you add up doses commonly used in research for these six ingredients individually — L-Citrulline alone is often studied at up to 3,000 mg — the combined figure comes to roughly 5,330 mg. Vasoryn's entire blend is about 11% of that combined figure, split an unknown number of ways.
This doesn't mean the blend contains none of these ingredients at a meaningful level, or that it's ineffective — we simply can't verify the amounts from the label alone. Ingredients are listed by descending weight, so L-Citrulline (listed first) likely makes up the largest share, but "largest share of 570 mg" could still be well below research-studied amounts.
Use it to set realistic expectations rather than as a reason to avoid the product outright. Many supplements in this category use proprietary blends; the honest move is factoring that into your expectations rather than assuming the label matches published research doses.
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