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Because formal, large-scale Phase 3 clinical trials for Long COVID are still scaling up, researchers have relied heavily on massive patient-reported outcome surveys to see what is working in real-world clinical settings

Its a tough choice, but our recommendation is Hikari Ultra

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You can get it at clinics, doctors' offices, or pharmacies.

Published September 15, 2025 Full letter: Comment BIOHACK if you want more science and health news like this

High-dose or poorly formulated over-the-counter products are more likely to cause issues than a medical-grade drip or injection from a reputable clinic