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Endurance Catalyst
A daily men’s supplement combining targeted nutrients, including selenium for normal spermatogenesis and protection against oxidative stress, and vitamin D for hormone balance—delivering focused nutritional support in simple, easy-to-take capsules.
Free sample each month
Pause or cancel anytime
365 day free returns
In stock. Next day delivery available.
Healf Zone members get free next day delivery on all orders. Enter the Zone.
Buy now, pay later from £8.75/mo
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.
Endurance Catalyst
A daily men’s supplement combining targeted nutrients, including selenium for normal spermatogenesis and protection against oxidative stress, and vitamin D for hormone balance—delivering focused nutritional support in simple, easy-to-take capsules.
Free sample each month
Pause or cancel anytime
365 day free returns
In stock. Next day delivery available.
Healf Zone members get free next day delivery on all orders. Enter the Zone.
Buy now, pay later from £8.75/mo
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.
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Frequently asked questions
Every product undergoes our Healf Curation Process. With it, you can shop confidently knowing that every item has been tried and tested before it reaches you. Our Healf Curation Process includes three key steps: Brand Discovery, Expert Validation, and Community Testing. Through these, we assess quality, ingredients, effectiveness, and more, ensuring that every product empowers your wellbeing.
The Healf Source offers detailed insights into different aspects of wellbeing, as well as guidance, research, recipes, and more to help you invest in your personal wellbeing journey. You can also subscribe to our weekly newsletters for the latest updates at Healf and in the wellbeing industry. Subscribe via the sign-up block at the bottom of this page.
We love people who check ingredients as carefully as we do, so you'll find detailed information about the ingredients used on every product page (where applicable). If you see something you'd like to flag with us or have additional questions, please don't hesitate to get in touch—we'd love to hear from you.
Healf Curation Process™
Every product undergoes our rigorous Healf Curation Process, ensuring you are always getting the best when it comes to your wellbeing.
The Discovery
Expert Validation
Community Testing
The Discovery
Expert Validation