Help Center

Frequently Asked Questions

Top FAQs

【Product Effects】 What are the main effects of Katsuo Stamina?

【Product Effects】 What sports does Katsuo Stamina help with?

【Product Effects】 Does it help prevent injury or muscle pain/soreness?

【Product Effects】 Does it also help with leg cramps?

【Product Effects】 Can I take Katsuo Stamina to help me lose weight?

【Product Effects】 Does Katsuo Stamina help build muscle/fitness?

【Product Effects】 What could be the reasons behind mild or unnoticeable effects?

【Ingredients/Working Principle】 What ingredients are included in Katsuo Stamina?

【Ingredients/Working Principle】 Does this product contain Gelatin, or gluten, or any allergy-causing substances?

【Dosage Method】 How do I take Katsuo Stamina?

【Dosage Method】 Why is it important to take it before and during exercise?

【Dosage Method】 Is it a substitute for electrolytes or energy supplements?

【Dosage Method】 Is it safe to use it in conjunction with other supplements?

【Dosage Method】 Is it safe to use with medication?

【Dosage Method】 Is there a maximum intake limit?

【Dosage Method】 What does it taste like? Does it have a fishy smell/taste?

【Dosage Method】 Is Katsuo Stamina safe for children to use?

【Dosage Method】 Can I take it on an empty stomach?

【Safety】 Is Katsuo Stamina manufactured in Japan?

【Safety】 Are there any side effects?

【Anti-doping】 Is there anything that would qualify as doping or prohibited substances?

【Anti-doping】 What is the INFORMED-SPORT certification?

【Preservation Method】 How do I store the product?

【Preservation Method】 What is the shelf life of the product?

【Payment Method】 What forms of payment do you accept?

【Shipping & Handling】 Do you ship to my country?

【Shipping & Handling】 Do you charge for shipping? (What is your shipping policy?)

【Shipping & Handling】 Do I need to pay customs duty for overseas purchases?

【Shipping & Handling】 Where can I track my order?

【Return & Refund】 What is your return and refund Policy?