Metagenics Sinuplex, Immune & Respiratory Support, 120 Tablets

Customers find the supplement effective for sinus conditions, with one mentioning it works well for histamine issues. Moreover, the product receives positive feedback for its side effects, with customers noting it eliminates night-time post-nasal drip and helps with allergy symptoms. The quality is high, and while some customers find it worth the price, others consider it a waste of money.