CORTISOL STRESS REDUCER+

KA-EX® RTD Cortisol Stress Reducer

$7.99 USD
Regular price
Unit price
per

AVAILABLE AT thefeed.com

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.

Pay in 4 interest-free installments of $133.12 with

Key Benefits
  • Supports cortisol balance & stress recovery
    KA-EX is designed to help support healthy cortisol balance after intense training, helping athletes recover faster while supporting sleep quality, energy levels, muscle recovery, and endurance.
  • Trusted by elite athletes worldwide
    KA-EX is used by thousands of professional athletes and multiple professional sports teams, including world champions and Olympians across various sports. The formula is certified for clean sport and tested by Informed Sport.
  • Swiss science – clinically validated
    Developed through 5 years of scientific research in Switzerland, KA-EX is supported by multiple clinical studies designed to evaluate its effectiveness in supporting recovery and performance.
  • Premium ingredients
    Formulated with a high-quality blend of GMP-certified amino acids, electrolytes, vitamins, alkaline salts, and bioactive compounds.
KA-EX® RTD Cortisol Stress Reducer
$7.99 USD
Regular price
Unit price
per

KA-EX® RTD Cortisol Stress Reducer

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Testimonial
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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

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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

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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

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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

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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

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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)

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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

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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