Douglas Laboratories

Please research the supplement brand "Douglas Laboratories".

## Data on file (from the US NIH Dietary Supplement Label Database and Japanese Foods with Function Claims notifications)
- Website: https://www.douglaslabs.com
- Location: Pittsburgh, PA, United States
- Products in database: 651 (on market)
- Dosage forms: Capsule 338, Tablet 185, Softgel 44, Powder 40, Other (e.g. tea bag) 24, Liquid 16
- Product types: Other Combinations 304, Non-Nutrient / Non-Botanical 112, Botanical 60, Mineral 47, Vitamin 46, Fat / Fatty Acid 25
- Most common main ingredients: Vitamin C 151, Vitamin E 130, Calcium 129, Zinc 125, Vitamin D3 118, Riboflavin 108, Selenium 108, Chromium 107, Magnesium 107, Thiamine 107
- Date range (DSLD entry / Japanese notification): 2012-06-25 – 2023-04-21

## 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.