Phytosterol Science • 6 Min Read

Beta-Sitosterol & Peak Urinary Flow (Qmax): Why Transdermal Delivery Beats Oral Plant Sterols

Published by the P-Protect™ Canada Official Website (pprotectcanda.com) Editorial & Research Team

Beta-Sitosterol & Peak Urinary Flow (Qmax): Why Transdermal Delivery Beats Oral Plant Sterols

In landmark meta-analyses published in the British Journal of Urology and the Cochrane Database of Systematic Reviews, Beta-Sitosterol stood out for producing statistically significant improvements in both Peak Urinary Flow Rate (Qmax) and International Prostate Symptom Scores (IPSS).

Yet there is a major catch when taking Beta-Sitosterol as an oral pill—and it explains why P-Protect™ Canada (pprotectcanda.com) engineered a transdermal patch instead.

1. The Intestinal Sterol Competition Bottleneck

In the human small intestine, plant sterols like Beta-Sitosterol compete directly with dietary cholesterol for Niemann-Pick C1-Like 1 (NPC1L1) transport proteins. Worse, ATP-binding cassette transporters actively pump up to 95% of ingested Beta-Sitosterol right back out into the gut lumen!

2. Why Transdermal Beta-Sitosterol Changes Everything

By delivering 90% pure bioactive Beta-Sitosterol across the epidermis via the P-Protect™ 72-hour dermal matrix, you bypass intestinal sterol rejection completely (see our full Oral vs. Transdermal comparison).

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