Muscle cramps are sudden, involuntary, and often painful contractions of a muscle or muscle group. For athletes, they can strike without warning during key training sessions, mid-race, or late in a game, and can significantly impact performance. FIXX has developed CrampFix® in the form of a compact sachet, is an all-natural, batch-tested formula designed to help both prevent and rapidly relieve muscle cramps. CrampFix® contains a carefully balanced combination of vinegar and electrolytes, using a science-backed approach that works with the body’s own neuromuscular systems to combat cramps from the source.
CrampFix® is formulated with a precise combination and balance of ingredients, designed to work together. While the acidic component from the vinegar provides a strong sensory stimulus, it is the inclusion of key electrolytes and the overall formulation that supports a consistent and effective response. The benefit doesn’t come from one component alone, but from how the ingredients work together,
Dr Kevin Miller’s research showed that certain oral solutions activate sensory receptors in the mouth and throat, known as transient receptor potential (TRP) channels. Activation of these receptors reduces excessive motor neuron firing to the cramping muscle, allowing it to relax within seconds. This rapid response supports the understanding that cramp relief is primarily neurological, rather than purely nutritional.
CrampFix® works through multiple pathways simultaneously, including neural inhibition, hydration, and electrolyte support. The sensory stimulus helps calm overactive motor neurons, reducing involuntary muscle contractions. Meanwhile, sodium, potassium, magnesium, and calcium support normal nerve transmission and muscle contraction–relaxation cycles, particularly during endurance exercise or periods of heavy sweating and fatigue.
Similarly, Fixx has also designed a mouth spray, providing fast and effective relief from muscular cramps within 30 - 120 seconds. Its mechanism of action is similar to the QuickFix Shot sachet, working via the body’s neuromuscular system, and is the perfect solution to instantly relieving non-exercise induced cramps that can disrupt daily routines and sleep.
CrampFix® is designed for both prevention and rapid relief, delivering a dual-purpose solution in a single, convenient formula for athletes of all sports. By aligning with current and emerging research on exercise-associated muscle cramps, CrampFix® offers an effective, evidence-based approach to cramp management without relying on outdated theories or single-ingredient fixes. Athletes can also take comfort in knowing it has been Informed Sport certified for safe use in training and competitions.
