Key Benefits

• Supports normal spermatogenesis with selenium.

• Contributes to normal hormone function with vitamin D.

• 100% pure, vegan, and laboratory tested.

Endurance Catalyst is a daily supplement formulated for men, combining vitamins, minerals, and plant extracts in a simple, balanced capsule. Selenium contributes to normal spermatogenesi, important for male reproductive health, and helps protect cells from oxidative stress. Vitamin D supports the maintenance of normal hormone function, while niacin contributes to the reduction of tiredness and fatigue. The formula also includes L-citrulline and tribulus, alongside L-tyrosine, an amino acid that complements neurotransmitter activity.

Together, these ingredients provide targeted nutritional support for male reproductive function and overall wellbeing. Free from unnecessary additives and suitable for regular use when taken as directed, Endurance Catalyst offers a clear way to include these key nutrients in a man’s daily routine.

Melve creates evidence-based supplements with uniquely crafted formulas, designed to deliver targeted nutritional support backed by clinical studies. Every detail—from waste-free, compostable packaging to rigorous quality testing—reflects a commitment to science, safety, and sustainability.

The brand was founded by Michael Bartenstein to bring science-first, clinically proven solutions into everyday life. From sexual wellbeing to hair health and more, Melve offers personalised supplements developed with pharmaceutical scientists and medical experts. Each formula is backed by research, created for real results, and delivered with clarity and care. Staying true to this vision, Melve continues its mission to make premium treatments accessible and effective.

With our Healf Curation Process, we do the work for you. Shop with confidence knowing that every item has been tried, tested, and curated for you.

Learn more about each step—Brand Discovery, Expert Validation, and Community Testing—here.

L-Tyrosine, L-Citrulline Malate, Tribulus Terrestris (90% Saponins), Vitamin B3 (Niacinamide), Vitamin B6 (Pyridoxine Hydrochloride), Vitamin D3 (Cholecalciferol), Vitamin B12 (Cyanocobalamin), Selenium (Sodium Selenite).
Other Ingredients: Hydroxypropylmethylcellulose (capsule shell), Microcrystalline Cellulose, Calcium Hydrogen Phosphate, Magnesium Stearate, Silicon Dioxide.

Daily Intake: 1-2 capsules per day, morning or night.

When to take: Can be taken with or without food.

Important: Do not exceed the recommended intake.

Storage: Store in a cool, dry place away from direct sunlight. Food supplements are not to be used as a substitute for a varied, balanced diet and healthy lifestyle. For best before date & batch number please see base.

Cautionary advice: If you are taking medication or are under medical supervision, consult your doctor before taking any food supplement. Keep out of sight and reach of children. Do not take if seal is broken. This product is not intended to diagnose, treat, cure or prevent any disease.

Additional Information:

Food supplements and foods sold by Healf should not be used as a substitute for a varied, balanced diet and healthy lifestyle.

If you are pregnant, breastfeeding, have a medical condition, or are taking any medications, please consult with a healthcare professional before use. Use products only if the seal is intact. Store in a cool, dry place, out of the reach of young children. Do not exceed the recommended daily intake.

We make every effort to ensure that product information on our website is accurate and up to date, but packaging and ingredients may occasionally vary from images shown on site. Please refer to the product label and contact Healf before use if you have any questions regarding your specific allergies or intolerances.