Endurance Products Company

Please research the supplement brand "Endurance Products Company".

## Data on file (from the US NIH Dietary Supplement Label Database and Japanese Foods with Function Claims notifications)
- Website: https://www.endur.com
- Location: Tualatin, OR, United States
- Products in database: 69 (on market)
- Dosage forms: Tablet 65, Softgel 4
- Product types: Vitamin 42, Other Combinations 9, Multivitamin & Mineral (MVM) 5, Non-Nutrient / Non-Botanical 3, Mineral 3, Fat / Fatty Acid 2
- Most common main ingredients: Niacin 34, Vitamin C 13, Phosphorus 11, Calcium 10, Magnesium 10, Vitamin E 7, Biotin 6, Folic Acid 6, Pantothenic Acid 6, Riboflavin 6
- Date range (DSLD entry / Japanese notification): 2013-01-25 – 2022-02-23

## What to find out
1. Company overview (year founded, headquarters, parent company, contract manufacturers)
2. What characterizes the product line, and whether it matches the dosage forms and ingredients above
3. Quality systems (cGMP compliance, third-party certifications such as NSF or Informed Sport)
4. Any FDA warning letters, recalls or other regulatory actions
5. Where the products are sold (official retailers, availability outside the US)
6. Objective differences from other brands in the same category (formulations, country of manufacture, certifications)

## Output rules
- Cite a primary-source URL for every item
- If something cannot be confirmed, say "no information found" instead of guessing
- Do not make claims about health effects; stick to facts and sources
- Answer in English as bullet points under each heading

A research request pre-filled with our data (from DSLD and Japanese Consumer Affairs Agency notifications). AI answers can contain errors, so always check the sources.