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THE PRINCIPLE
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OUTPERFORM
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ViCap™ is a Swiss-based innovator in the beverage packaging industry. At its core, Vicap Systems is driven by a passion for innovation, quality, and sustainability - with the goal of redefining how beverages deliver value to consumers worldwide.
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You're training harder than ever, but recovery still feels like it's dragging you down. Here's what most athletes miss: it's not just about what you do during workouts—it's about what happens to your cortisol after. When stress hormones stay elevated, your body can't rebuild. Sleep suffers. Energy tanks. Progress stalls.
KA-EX is the world's first clinically-proven cortisol reducer that works in 48 hours.
What Makes It Different
Cortisol Control That Actually Works Clinical studies show a 36% faster return to normal cortisol levels within 48 hours. This isn't about masking fatigue—it's about fixing the root cause of incomplete recovery.
Swiss-Engineered Recovery Stack Phosphatidylserine tells your body to dial down stress hormones. L-tryptophan supports deep REM sleep. L-glutamine and targeted amino acids rebuild what training breaks down. This goes way beyond basic electrolytes.
Zero Stimulants, Maximum Results No caffeine. No taurine. Just clean, functional ingredients that work with your body's natural recovery systems. Vegan, gluten-free, and Informed Sport certified for pro athletes.
Olympic gold medalists and F1 drivers rely on this formula because when cortisol drops, everything else improves—muscle growth, testosterone, immune function, and endurance. If it’s good enough for the world’s best, it’s good enough for your PR goals.
How to Use It
Post-Workout: Mix 1 sachet in 10-17oz cold water immediately after training. For ready-to-drink bottles, push the cap to activate and consume right away.
Next-Day Dose: Take another serving 24 hours later, even on rest days. Cortisol doesn't take days off, so neither should your recovery strategy.
Pro Tip: Daily use delivers the best results—lower baseline cortisol means more energy in everyday life, not just after workouts.
Social Proof KA-EX is the official supplier to PSG, Tudor Pro Cycling Team, Swiss National Soccer Team, and thousands of Olympic athletes and World Champions. Fabian Cancellara calls it "the perfect complement for top performance." When the world's best trust their recovery to one product, that tells you everything.
Gluten-free, dairy-free, vegan, vegetarian, tree-nut & peanut-free, soy-free, and stimulant-free. This isn't just another recovery drink. This is Swiss science solving the problem most athletes don't even know they have.
$49.99 USD
Unit price
Regular price
per
Testimonial
Throughout my career, it has always been important to me to stay true to myself. At KA-EX, I've found exactly that: high-quality products, a clear vision, and an impressive track record of scientific success that I'm proud to be a part of.
Lara Gut-Behrami
Olympic Gold Medalist, 48× career wins and 2× World Championships
I only work with partners who take performance seriously. What impresses me about KA-EX is its commitment to quality and its clear scientific focus. That aligns with my understanding of professional sports.
Dario Cologna
4x Olympic Gold Medalist 4x Overall World Cup Winner 4x Tour de Ski Winner
Success comes from consistency and the right decisions. KA-EX is a reliable part of my routine to maintain performance and recovery at the highest level.
Claudio Castagnoli
Swiss professional wrestler
As a holistic recovery product, KA-EX is the perfect complement to offer our riders the best possible conditions for top performance.
Fabian Cancellara
2x Olympic gold medal winner, President Tudor Pro Cycling Team
In the heptathlon, every second and every detail counts. KA-EX helps me perform consistently across every discipline and recover optimally.
Antonia Gmünder
Swiss heptathlete & hurdler
In boxing, speed, focus, and endurance are key. KA-EX helps me perform consistently and recover optimally.
Angelo Peña
Swiss professional boxer - TheONE Pro Boxer 13-0 (7KO)
Our team of nutritionists and sports scientists are excited to have a holistic product like KA-EX, supporting us in every recovery process.
Yo Murphy
former NFL Player and VP of Performance at House of Athlete
KA-EX is becoming more and more popular with our players and staff. We instruct players to use KA-EX after every game or practice. We are very happy with the product.
Martin Krone
Head of Physiotherapy, FC Basel
TRUSTED BY
+1000 PRO ATHLETES.
TRUSTED BY
+1000 PRO ATHLETES.
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FAQ
What is KA-EX® and how does it work?
Cortisol is the body’s primary stress hormone. It rises in response to physical or emotional stress to help you adapt—but when cortisol stays elevated for too long, it can impair recovery, disrupt sleep, and diminish overall performance.
After intense training, the body enters a prolonged stress state: inflammation, increased acidity, and micro-tears in muscle tissue trigger an extended cortisol response that can last 48 to 72 hours. This often results in low energy, stagnated progress, and—in more severe cases—declining muscular performance.
KA‑EX® is designed to support cortisol normalisation through multiple pathways:
- It contains phosphatidylserine, a clinically studied ingredient associated with supporting the regulation of exercise-induced cortisol responses;
- It supports muscle repair and immune function with L-glutamine, and improves sleep quality with L-tryptophan, both of which help mitigate the effects of elevated cortisol.
- By restoring optimal pH balance and replenishing muscle glycogen through a precise mix of glucose and fructose, KA-EX reduces metabolic stress and accelerates recovery.
Together, these mechanisms help your body return to balance faster—reducing the negative impact of cortisol and unlocking better recovery, sleep, and training results.
In three clinical studies, KA-EX was shown to accelerate cortisol normalization by 36%, improve REM sleep by 16%, and enhance heart rate variability (HRV) by 10%— resulting in more energy (9%) and an 8% mood improvement.
When and how should I take KA-EX®?
KA‑EX® is designed to be taken after physical exercise or activity to support recovery. Since recovery processes last over 48 hours, many athletes also take it on rest days.
KA‑EX® can also be taken on demanding workdays, during periods of mental fatigue, or whenever your body is under stress — whether physical or psychological.
The recommended serving is one KA‑EX® per day, available in either sachet or bottle format. Mix one sachet with 500 ml (approx. 17 oz) of cold water, shake well until fully dissolved, and drink chilled.
Sugar is known to lead to a cortisolspike,why does KA-EX® contain sugar?
It’s true that sugar can cause a short-term cortisol spike lasting 30 to 60 minutes. However, in the context of post-exercise recovery, this effect is largely irrelevant.
Intense physical activity elevates cortisol levels for 48 to 72 hours due to muscle damage, inflammation, and systemic stress. In comparison, the brief spike caused by sugar is minimal and does not contribute to any meaningful additional cortisol load.
KA‑EX® contains only 18g of sugar—the same amount and type found in a regular apple (12g fructose, 6g glucose)—and is classified as “low in sugar.” Yet this small amount plays a critical role in the product’s effectiveness by enabling key recovery processes:
- Replenishment of muscle glycogen: Glycogen is the body’s primary fuel source during exercise. Recovery requires energy, and restoring glycogen immediately post-workout is essential for proper muscle repair and performance rebound.
- Facilitated nutrient and electrolyte absorption: Sugar acts as a transport facilitator. As glucose and fructose are taken up into muscle cells, they carry along vital co-transported substances—such as electrolytes, L-glutamine (for cellular repair), anti-inflammatory compounds, and alkaline minerals to restore optimal pH balance.
Research shows that even when the body is adequately supplied with protein and other nutrients, the absence of sugar post-exercise can reduce recovery efficacy by up to 34%. In fact, after high-intensity training, it is often recommended to consume 60g of carbohydrates to support full recovery.
How is KA-EX® different from a regular sports drink or electrolyte mix?
Most sports drinks and electrolyte mixes are designed with a single goal in mind: rehydration. They typically contain water, sodium, potassium, and simple carbohydrates to replace what is lost through sweat during exercise. While these are important, they address only one dimension of what your body needs after intense physical activity.
KA‑EX® is clinically developed and patented in Switzerland as a full-spectrum recovery formula, targeting multiple recovery pathways simultaneously:
- Hormonal recovery: Phosphatidylserine supports regulation of the cortisol response to exercise-induced stress, helping the body return to hormonal balance more efficiently.
- Muscle repair and immune support: L-glutamine plays a central role in muscle repair and immune function, which are compromised following high-intensity exercise.
- Sleep and mood support: L-tryptophan is the dietary precursor to both serotonin and melatonin, supporting the sleep quality that is essential for tissue repair and growth hormone release.
- Antioxidant defence: L-cysteine helps neutralizing the oxidative stress generated by intense exercise.
- Energy and electrolyte restoration: A glucose and fructose combination initiates carbohydrate replenishment, alongside a full electrolyte profile supporting fluid balance, nerve conduction, and muscle contractility.
- Micronutrient support: vitamins B6 and B12 support energy metabolism, while zinc and selenium contribute to immune defense and antioxidant enzyme activity.
Is KA-EX® clinically tested?
In three clinical studies, KA-EX was shown to accelerate cortisol normalization by 36%, improve REM sleep by 16%, and enhance heart rate variability (HRV) by 10%—resulting in more energy (9%) and an 8% improvement in mood.