Prinova has launched its clinically supported pre-workout ingredient CitraPeak® in Europe.

The unique product is the first 100% soluble form of hesperidin – a flavonoid that occurs naturally in citrus fruits. Its vasodilatory and pump effects make it ideal for pre-workout applications.

In CitraPeak®, hesperidin is bonded to tapioca starch, making it 100,000 times more soluble and 347 times more bioavailable than standard hesperidin, allowing rapid activation.

The benefits of CitraPeak® are supported by a range of published clinical studies. They include:

• Increase in physical output: Research shows that CitraPeak® helps increase energy and physical output. 
• Rapid release: Over 100,000 times more soluble^[1] and 347 times more bioavailable than standard hesperidin, CitraPeak® activates in just 30 minutes.^[2] 
• Increase in thermogenic effect: In a cold condition test, surface temperatures were 5.4 °F higher among a CitraPeak® group than a control, with users reporting increased sweating at room temperature.^[3] 
• Nitric oxide pump effect: CitraPeak® is broken down in the body into hesperetin (of which hesperidin is a glycoside), which has been linked to increased release of nitric oxide^[4] and related pump effects. 
• Increase in blood flow: In another clinical study, CitraPeak® was found to increase blood flow by 18% compared to a control.^[5]

Ongoing research is also exploring the product’s benefits in areas like V̇O2 max, recovery, mood and cognitive performance.

Already available in the US, CitraPeak® will make its European debut at Vitafoods Europe (20th to 22nd May 2025 in Barcelona), where it will feature in a new pre-workout beverage concept. Prinova will exhibit at Stand #CC.B38.

James Street, Global Marketing Director at Prinova, said: “CitraPeak® is a one-of-a-kind ingredient for pre-workout applications. It offers all the clinically proven benefits of standard hesperidin–like increase in thermogenic effect and release of nitric oxide. However, for the first time, it delivers them in a completely soluble form, so that the vasodilatory and pump effects of hesperidin are noticeable extremely rapidly. CitraPeak® is a game-changing pre-workout ingredient, and we’re delighted that its benefits are now available to active consumers in Europe.”

Sourced from citrus peels, CitraPeak® is clean, near colourless, near tasteless, and odourless.

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References

1. H Mitsuzumi et al. Glucosyl Hesperidin Lowers Serum Triglyceride Level in the Rats Fed a High-Fat Diet through the Reduction of Hepatic Triglyceride and Cholesteryl Ester. Japanese Pharmacology & Therapeutics 39(8): 727-740 (2011)
2. M Yamada et al. Bioavailability of Glucosyl Hesperidin in Rats. Bioscience Biotechnology and Biochemistry 70(6): 1386-1394 (2006)
3. K. Yoshitani et al. Effect of a-Glucosylhesperidin on Poor Circulation in Women. Journal of Nutritional Science and Vitaminology 61: 233-239 (2008)
4. L Liu et al. Distinct Effects of Naringenin and Hesperetin on Nitric Oxide Production from Endothelial Cells. Journal of Agricultural and Food Chemistry 56: 824-829 (2008)
5. S. Endo. Dietary Glucosyl Hesperidin Improves Blood Flow, Skin Color and Skin Conditions. The Society for the Study of Hesperidin (2015)