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Image of a pack of CurraNZ
approx USD
$30
per carton
A pack shot of CurraNZ
approx
$30
per carton

Ultra-performances
need an ultra-supplement

Are you going for an ‘ultra’ effort but your body isn’t there (yet)?

You can’t cheat on your nutrition when going big – which is where our unique, high-potency superfood comes into its own.

A competitive advantage, proven in 50+ clinical trials
CurraNZ will change the game for your capacity to train, race and recover, thanks to its powerful antioxidant and cardiovascular-enhancing actions.

Suffer less, train more
We guarantee that CurraNZ will cut your recovery time and reduce muscle soreness.

Go Ultra, Go with CurraNZ
The trusted global science leader in high-performance blackcurrant supplements

*If you don't feel the post-exercise muscle recovery difference within a month, we offer a full money-back guarantee on purchases via curranz.com

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

CURRANZ BLACKCURRANT CAPSULES PACK A PUNCH 👊

A natural blood flow-promoter and antioxidant, CurraNZ delivers a powerful combination of recovery, performance, fat metabolism and health benefits.

Made from a unique berry that enhances ‘ultra’ performance, Vegan-friendly CurraNZ is perfect for health and fitness, to help you live life to the full.

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USA SPORTS NUTRITION PRODUCT OF THE YEAR, 2021

Winner of eight major international awards in North America, Europe and Asia, CurraNZ  is the most researched and trusted New Zealand blackcurrant supplement brand globally. Discover the 'CurraNZ difference' today.

Perfected By Nature.
Proven IN Science

The ingredient discovery of the decade, CurraNZ sets the industry standard thanks to its research-backed efficacy for human health and performance, supported by real-world results.

  • Guaranteed recovery:
    49% less soreness, 3x faster muscle recovery, CurraNZ will change your readiness to train.

  • Next-level for performance:
    One of the most effective performance-enhancing supplements available, CurraNZ can deliver running, cycling and climbing improvements of up to 11%.

  • Unprecedented fat burning:
    Over 12 studies confirm CurraNZ makes your body favour fat as fuel at rest and during exercise.

  • An ultra supplement with game-changing benefits:
    Powerful plant-based nutrients to help you achieve your health and fitness goals - naturally.

research AND DOSING GUIDE

To be the best, you have to use the best. CurraNZ has been helping people smash their health and fitness goals for a decade and is proud to be the science leader in our field.

Energy Metabolism

  1. Two weeks daily intake of anthocyanin-rich New Zealand blackcurrant extract CurraNZ enhances whole-body fat oxidation during supine rest in healthy males, Dietary Supplements and Nutraceuticals, August 2023. DOI: https://www.doi.org/10.31989/dsn.v2i8.1124

  2. Running-Induced Metabolic and Physiological Responses Using CurraNZ New Zealand Blackcurrant Extract in a Male Ultra-Endurance Runner: A Case Study. https://doi.org/10.3390/jfmk7040104

  3. Daily and Not Every-Other-Day Intake of Anthocyanin-Rich CurraNZ New Zealand Blackcurrant Extract Alters Substrate Oxidation during Moderate-Intensity Walking in Adult Males. https://doi.org/10.1080/19390211.2020.1841356

  4. CurraNZ NewZealand Blackcurrant Extract Enhances Fat Oxidation During Submaximal Exercise in the Heat. https://doi.org/10.1016/j.jsams.2020.02.017

  5. CurraNZ New Zealand blackcurrant extract enhances fat oxidation during prolonged cycling in endurance-trained females. http://doi.org/10.1007/s00421-018-3858-3

  6. CurraNZ New Zealand blackcurrant extract improves cycling performance and fat oxidation inCyclists. http://doi.org/10.1007/s00421-015-3215-8

  7. Dose effects of CurraNZ NewZealand blackcurrant on substrate oxidation and physiological responses during prolonged cycling. https://doi.org/10.1007/s00421-017-3607-z

  8. Intake Duration ofAnthocyanin-Rich CurraNZ New Zealand Blackcurrant Extract Affects Metabolic Responses during Moderate Intensity Walking Exercise in Adult Males. https://doi.org/10.1080/19390211.2020.1783421

  9. Enhanced Walking-Induced Fat Oxidation by CurraNZ New Zealand Blackcurrant Extract Is Body Composition-Dependent in Recreationally Active Adult Females. https://doi.org/10.3390/nu14071475

  10. Intake Duration of Anthocyanin-Rich CurraNZ New Zealand Blackcurrant Extract Affects Metabolic Re­sponses during Moderate Intensity Walking Exercise in Males. https://doi.org/10.1080/19390211.2020.1783421

Sports Performance

  1. CurraNZ New Zealand blackcurrant extract improves high-intensity intermittent running. https://dx.doi.org/10.1123/ijsnem.2015-0020

  2. Effect of CurraNZ New Zealand blackcurrant extract on performance during the running based anaerobic sprint test in trained youth and recreationally active male football players. https://doi.org/10.3390/sports5030069

  3. Beneficial effects of CurraNZ New Zealand blackcurrant extract on maximal sprint speed during the Loughborough Intermittent Shuttle Test. https://doi:10.3390/sports4030042

  4. CurraNZ New Zealand blackcurrant extract improves cycling performance and fat oxidation in cyclists. https://doi.org/10.1007/s00421-015-3215-8

  5. CurraNZ New Zealand Blackcurrant Extract Attenuates Enterocyte Damage Following Exertional Heat Stress https://doi.org/10.1123/ijsnem.2021-0330

  6. Anthocyanin-Rich Supplementation: Emerging Evidence of Strong Potential for Sport and Exercise Nutrition. https://doi.org/10.3389/fnut.2022.864323

  7. Effects of anthocyanin-rich CurraNZ New Zealand blackcurrant extract on Rugby Union specific tests, https://doi.org/10.3390/sports10100152P

  8. CurraNZ New Zealand blackcurrant extract enhances muscle oxygenation during repeated intermittent forearm muscle contractions in advanced and elite rock climbers. https://doi.org/10.1123/ijsnem.2019-0365

  9. CurraNZ New Zealand Blackcurrant Extract Enhances Forearm Muscle Oxygenation During andFollowing Isolated Exhaustive Forearm Exercise in Intermediate-Level RockClimbers. https://doi.org/10.1123/ijsnem.2019-0365

  10. Effects of CurraNZ New Zealand blackcurrant extract on sport climbing performance. https://doi.org/10.1007/s00421-019-04226-2

  11. The effect of New Zealandblackcurrant on sport performance and related biomarkers: a systematic review and meta-analysis. https://doi.org/10.1186/s12970-020-00354-9

  12. The effects of an acute dose of New Zealand blackcurrant extract on 5 km running performance Int J Sport Nutr Exerc Metab 2023 https://doi.org/10.1123/ijsnem.2023-0029

  13. Effects of CurraNZ, a New Zealand Blackcurrant Extract during 1 Hour of Treadmill Running in Female and Male Marathon des Sables Athletes in Hot Conditions: Two Case Studies, 2024. Journal of Func. Morph and Kinesiology https://doi.org/10.3390/jfmk9020076

Muscle Recovery

  1. Consumption of CurraNZ New Zealand Blackcurrant Extract Improves Recovery from Exercise-Induced Muscle Damage in Non-Resistance Trained Men and Women: A Double-Blind Randomised Trial. https://doi.org/10.3390/nu13082875

  2. Consumption of an Anthocyanin-Rich Extract Made From New Zealand Blackcurrants Prior to Exercise may Assist Recovery from Oxidative Stress and Maintains Circulating Neutrophil Function: A Pilot Study. https://doi.org/10.3389/fnut.2019.00073

  3. Daily consumption of NZBCE for five weeks supports recovery through management of Oxidative Stress and inflammation: A Randomized Placebo Controlled Pilot Study. https://doi.org/10.3389/fnut.2020.00016

  4. Short-term blackcurrant extract consumption modulates exercise-induced oxidative stress and lipopolysaccharide-stimulated inflammatory responses. https://doi.org/10.1152/ajpregu.90740.2008

  5. New Zealand blackcurrant extract enhances skeletal muscle glycogenre-synthesis in response to sub-optimal carbohydrate ingestion, [Abstract],International Sports and Exercise Nutrition Conference, Manchester, December 2022 (publication due 2023)

Heat stress

  1. CurraNZ, an anthocyanin-rich New Zealand blackcurrant extract reduces treadmill running-induced gastro-intestinal symptoms in the heat: A pilot study. Proceedings of the Nineteenth International Society of Sports Nutrition (ISSN) Conference and Expo, 2023,  https://www.tandfonline.com/doi/full/10.1080/15502783.2023.2187955 [In review]

  2. New Zealand blackcurrant extract modulates the heat shock response in men during exercise in hot ambient conditions. European Journal of Applied Physiology https://doi.org/10.1007/s00421-024-05439-w, February 2024

  3. Anthocyanin-rich blackcurrant extract preserves gastrointestinal barrier permeability and reduces enterocyte damage but has no effect on microbial translocation and inflammation after exertional heat stress, International Journal of Sports Nutrition and Exercise Metabolism, July 2022. DOI: 10.1123/ijsnem.2021-0330

Cardiovascular Function

  1. CurraNZ New Zealand Blackcurrant Alters Physiological Reponses and Femoral Artery Diameter during Sustained Isometric Contraction. https://doi.org/10.3390/nu9060556

  2. Effect of Intake Duration of Anthocyanin-rich CurraNZ New Zealand Blackcurrant Extract on Cardiovascular Responses and Femoral Artery Diameter during Sustained Submaximal Isometric Contraction. https://doi.org/10.1080/19390211.2021.1948943

  3. Cardiovascular function during Supine Rest in Endurance-Trained Males with New Zealand Blackcurrant: A Dose-Response Study. https://doi.org/10.1007/s00421-016-3512-x

  4. Dose Effects of CurraNZ NewZealand Blackcurrant on Substrate Oxidation and Physiological Responses During Prolonged Cycling. http://doi.org/10.1007/s00421-017-3607-z

  5. Effect of blackcurrant anthocyanins on the activation of endothelial nitric oxide synthase (eNOS) in vitro in human endothelial cells. https://doi.org/10.1021/jf201116y

  6. Upregulation of endothelial nitric oxide synthase bycyanidin-3-glucoside, a typical anthocyanin pigment. (2004). https://doi.org/ 10.1161/01.HYP.0000135868.38343.c6

  7. The Effect of Anthocyanin-Rich Foods or Extracts on Vascular Function in Adults: A Systematic Review and Meta-Analysis of Randomised Controlled Trials. http://doi.org/10.3390/nu9080908

  8. Effects of blackcurrant extract on arterial functions in older adults: A randomized, double-blind, placebo-controlled, crossover trial. https://doi.org/10.1080/10641963.2020.1764015

Health

  1. Anthocyanin-Rich NewZealand Blackcurrant: Implications for Health, (2022). Agro FOOD Industry https://doi.org/10.3389/fnut.2022.864323

  2. Effect of CurraNZNew Zealand Blackcurrant on Blood Pressure, Cognitive Function and Functional Performance in Older Adults. http://doi.org/10.1080/21551197.2019.1707740

  3. Effects of CurraNZ blackcurrant extract on arterial functions in older adults: A randomized, double-blind, placebo-controlled, crossover trial. https://doi.org/10.1080/10641963.2020.1764015

  4. Effect of CurraNZ New Zealand Blackcurrant on Blood Pressure, Cognitive Function and Functional Performance in Older Adults. https://doi.org/10.1080/21551197.2019.1707740

  5. Short term, but not acute, intake of CurraNZ New Zealand blackcurrant extract improves insulin sensitivity and free living postprandial glucose excursions in individuals with overweight or obesity. https://doi.org/10.1007/s00394-020-02329-7

  6. Plasma Uptake of Selected Phenolic Acids Following CurraNZ NZBCE Supplementation in Humans. https://doi.org/10.1080/19390211.2021.1914802  

  7. Drinks containing anthocyanin-rich blackcurrant extract decrease postprandial blood glucose, insulin and incretin concentrations. https://dio.org/10.1016/j.jnutbio.2016.09.002

  8. Berries modify the postprandial plasma glucose response to sucrose in healthy subjects. http://doi.org/10.1017/S0007114509992868

  9. Postprandial glucose, insulin, and free fatty acid responses to sucrose consumed with blackcur­rants and lingonberries in healthy women. Am J ClinNutr 96(3):527–533. https://doi.org/10.3945/ajcn.112.042184

Dosing Guide

GENERAL HEALTH AND WEIGHT MANAGEMENT

1. Use one to two capsules daily, (mornings) or 2 hours before exercise.
2. For weight management, take 2 capsules daily, away from meals. Effects start after 7 days and improve with longer use.

POST-EXERCISE MUSCLE RECOVERY

1. Take 2 hours before exercising, or immediately after.
2. Use one capsule up to 70kg, or two capsules if 70kg+.
3. Redose 7 days following intense sessions.

FOR SPORTS ENDURANCE, CARDIOVASCULAR FUNCTION, FAT METABOLISM and GI SUPPORT

1. Take 1-3 capsules, two hours before exercise
2. 7 days loading required for performance and fat oxidation effects (1-2 capsules).
3. Racing or training for eight hours or more? Redose on 1-3 capsules, every 4-6 hours.
4. Use daily for best effects.

QUESTIONS?

We're here to help. Email us today, info@curranz.com

STOCKISTS

To ensure the best buying experience for our customers in The US, we've partnered up with a number of retailers. Please find our list of official suppliers below. In order to purchase, click the logo and it will take you to the suppliers store.

INSIST ON CURRANZ

The researched health and sports benefits of CurraNZ supplements are characterised by Enzans™, key identifiers of our proprietary New Zealand blackcurrant bioactives that deliver the outstanding properties of our product. CurraNZ is the only New Zealand blackcurrant supplement brand on the global market that is validated by dozens of product-specific studies in gold-standard, peer-reviewed research.

99% of blackcurrant products and formulations do not meet our exacting standards due to the high variation in fruit bioactives and production methods that influence the efficacy of blackcurrant functional food products and dietary supplements globally.

CURRANZ – THE SCIENCE LEADER

A picture of Blackcurrants

HARNESS THE POWER OF NEW ZEALAND BLACKCURRANTS

Thanks to New Zealand's unique growing climate, clean, green environment and special cultivars, CurraNZ blackcurrants possess one of the highest anthocyanin densities of any berry, which rank amongst the most important phenolics found in food.

Anthocyanins are important bioactives that prime the body for exercise to support cardiometabolic function, enable faster muscle recovery and improve endurance. Thanks to our proprietary extraction process, CurraNZ delivers the equivalent of a generous handful of fresh blackcurrants in each capsule to help you be your personal best.

A picture of Blackcurrants
A picture of blackcurrants

HARNESS THE POWER OF NEW ZEALAND BLACKCURRANTS

Thanks to New Zealand's unique growing climate, clean, green environment and special cultivars, CurraNZ blackcurrants possess one of the highest anthocyanin densities of any berry, which rank amongst the most important phenolics found in food. Each capsule contains the equivalent of a generous handful of fresh blackcurrants, to help you be your personal best.

Get Started

Awards

Nutra Ingredients Winner USA Awards 2021
Functional Sports Nutrition Best Recovery Winner 2020
European Specialist Sports Nutrition Awards 2021 Best Post-Workout Product Winner
European Specialist Sports Nutrition Awards 2021 - Winner Best Sports Nutrition Product

testimonials

To be the best, you have to use the best. CurraNZ has been helping people smash their health and fitness goals for a decade and is proud to supply elite athletes worldwide.

Picture of Andrew Heyden
★★★★★

I’ve been using CurraNZ for well over a year and the recovery and GI benefits I’ve experienced by incorporating CurraNZ have allowed me to push my body further than ever before - and just a year after knee surgery.

CurraNZ been a game-changer in my career, and I truly believe it’s helped me secure a PB at Western States and to win CCC at UTMB.

As a pro athlete, this is my career, I’m really careful with what I put in my body. I don’t just throw things in and hope for good numbers. I only put in what I trust and believe in. I’ve seen the positive effects from CurraNZ. It works.”

Hayden Hawks

1st Place UTMB CCC , 1st Place Lavaredo Ultra Trail , 1st Place Black Canyon 100k , Gold medalist World Mountain Running Championships , 2nd Place Western States
Picture of Andrew Heyden
★★★★★

'I took it for a test run! I did the Milford Track (60km and 9hrs of running) in one go on legs that were definitely not trained for that distance/time. I had taken CurraNZ for about a month before I did the run, and was so surprised at how my legs responded to the fatigue of the run, as well as recovering quickly without any DOMS!'

Anna Frost

1st TransVulcania – La Palma, 2nd Sky Running World Series, 1st Hardrock100 (2015 & 2016), 2nd Mt Blanc 80km – France, 1st Speed Goat – USA
Picture of Andrew Heyden
★★★★★

'My recovery phase (of hard training) matched the science/study results of faster recovery with less muscle soreness. The Anthocyanins have been studied to improve natural blood flow (read: recovery+ & performance+) so I’m excited to say I was feeling really solid through these sessions! #NewFan'

Robyn Lesh

1st at Midstate Massive 50km, 5th Canyons Endurance 50km, 2nd Whistler Alpine Meadows 50km, 15th Golden Trail World Final Stage Race Madeira
Picture of Andrew Heyden
★★★★★

'After a recommendation from a trusted elite running friend I started using CurraNZ and have been able to increase the intensity of my sessions. Since then I have set new PBs for every distance from 5,000m to marathon and have been getting faster in my 40s. For the first time ever, the product has allowed me to go on training runs the days following a marathon. The reduced DOMS is really significant - my running mates have been amazed that can run the day after a race. I put it down to CurraNZ.'

Andrew Heyden

Ultra-Runner. Australian 50km Champion, NSW Masters Age Group 5,000m Champion. Silver medallist, Australian 100km Champs,Silver medallist, NSW Marathon Championship.
A Picture of Dougal Allan
★★★★★

'I’ve seen big differences from year to year using CurraNZ. I train my body through the full spectrum - slow energy training, tempo work, threshold stuff, VO2max – and I’m more efficient at every level of output.“Everything has moved on - even my coach has been taken aback. In my last track session I was 5 seconds per kilometre faster and my maximum heart rate was seven beats lower. “That’s significant and adds up to a lot of improvement and at a lower cost too. I’ll happily attribute that to CurraNZ’s vasodilatory action and creating less resistance to help blood and oxygen delivery - it all stacks up.“CurraNZ is the only supplement I use and has been a game changer.'

Dougal Allan

New Zealand endurance athlete, Ironman and coach, 3 x World Multisport Champion
A Picture of Camilla Lindholm Borg
★★★★★

'CurraNZ helped me get into the greatest shape ever at the age of 43. The supplement’s endurance, fuelling and recovery benefits have been crucial for a long-distance athlete like me.'

Camilla Lindholm Borg

European Duathlon Champion
A Picture of Hannah Sheridan
★★★★★

'The feedback from my footballers has been positive, as an example, athletes who are experiencing overtraining syndrome have found that it’s disappeared within a week of using CurraNZ.'We use CurraNZ for recovery during intense periods and also pre-exercise, because of the improvements it delivers to blood flow.'

Hannah Sheridan

First Team Nutritionist, Tottenham Hotspur Football
A Picture of Hannah Sheridan
★★★★★

'I started using CurraNZ over the winter while I was healing a bone stress injury, with the hope of supporting peripheral blood flow. I continued to use it as I eased back into a regular training regimen and have been extremely pleased with its effects on recovery and performance. The research that is emerging on polyphenol anthocyanins, a strong antioxidant within black currants, and its benefits for endurance athletes is very promising and a driving factor in my usage of CurraNZ. I am excited to grow with this brand and continue supporting my athletic career with science.'

Dr Stefanie Flippin

2021 USA 100-mile Champion, professional ultra-runner and coach
A Picture of Hannah Sheridan
★★★★★

'I took two CurraNZ capsules three times a day when setting the speed record on the Appalachian Trail in 2023. I felt less fatigued and this showed physically and mentally as I didn’t spiral like I did on the attempt the previous year. I felt fitter, stronger and had more focus and clarity.

I’m a big berry person anyway, so to have these high-antioxidant berries in a convenient capsule knowing the invaluable benefits they provide with food-based nutrient support every day, was great. CurraNZ is my favourite supplement now.'

Kristian Morgan

British ultra-runner, Fastest Known Time record-holder Appalachian Trail (Southbound, supported), four-time podium finisher in Thailand’s North Face 100km.