Superior Source

Please research the supplement brand "Superior Source".

## Data on file (from the US NIH Dietary Supplement Label Database)
- Website: https://www.superiorsourcevitamins.com
- Location: Los Angeles, CA, United States
- Products in database: 28 (on market)
- Dosage forms: Tablet 27, Powder 1
- Product types: Botanical with Nutrients 11, Vitamin 6, Other Combinations 5, Non-Nutrient / Non-Botanical 3, Botanical 2, Mineral 1
- Most common main ingredients: Stevia leaf extract 17, Vitamin B12 9, Vitamin B6 5, Folate 4, Folic Acid 4, Dehydroepiandrosterone 3, Vitamin D 3, 5-HTP 2, Gamma-Aminobutyric Acid 2, L-5 Methyltetrahydrofolate 2
- DSLD entry dates: 2018-09-21 – 2020-06-24

## 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 DSLD-based data. AI answers can contain errors, so always check the sources.