Interval International

About Interval International

Interval International is an independent brand in supplements & nutrition, best known here for its pre workout, lactic acid buffer. Every product on this page is sold and shipped by Interval International directly, and prices are checked daily.

In the brand’s words: “Lactic Acid Buffer, Pre-Shot, electrolytes, creatine and collagen for Hyrox and functional fitness athletes. Clinically dosed and made in the UK.”