Sponsor United States Handball Association

Every influencer marketing article tells you the same thing: micro-influencers are better value. Almost none of them show you the receipts. So we pulled ours.

Glutathione has become one of the most talked-about molecules in wellness — the “master antioxidant” that shows up in podcasts, longevity conversations, and the supplement aisle alike. But behind that mainstream moment is a brand that has spent decades making glutathione credible: Immunotec. This is the story of how OpenSponsorship helped Immunotec turn that scientific authority into everyday consumer demand — and a real-world example of what ingredient branding looks like when it’s done right.

On July 4, 2026, the United States turns 250. The Semiquincentennial — America250 — isn't a single day; it's a Congress-chartered, yearlong national celebration running from Memorial Day 2025 through the end of 2026, with signature events in New York, Philadelphia, Washington, DC and Main Streets across the country.