This site cites this specific source directly for its Bromelain ingredient claim — worth checking what it actually covers.
NCCIH, the National Center for Complementary and Integrative Health, is a government research body — worth reading its bromelain page as a credible background source on the enzyme generally, not a trial of this specific spray.
Given Bromelain's role in this site's own blood-thinner caution, worth reading the NCCIH source directly for its own stated safety notes on bromelain, rather than relying solely on this site's summary.
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