# L-Tryptophan 500 mg

> Life Extension — US label snapshot lbl_dsld_231998_0bbda8481352263c

Canonical: https://anaturalendeavor.com/labels/lbl_dsld_231998_0bbda8481352263c

## Original facts and normalized results

| Ingredient | Original | Normalized | Status |
|---|---:|---:|---|
| Tryptophan | 500 mg | 500 mg | as_labeled |
| Cellulose | not stated  | not available  | missing_quantity |
| Cellulose | not stated  | not available  | missing_quantity |
| Hypromellose | not stated  | not available  | missing_quantity |
| Stearic Acid | not stated  | not available  | missing_quantity |

## Source

- Original: https://api.ods.od.nih.gov/dsld/v9/label/231998
- Source record: src_dsld_231998
- Snapshot: snap_dsld_231998_0bbda8481352263cfade80c4
- Retrieved: 2026-09-28T16:13:08.959Z
- Source updated: unknown
- Content hash: 0bbda8481352263cfade80c47f0b727367e8e0ff7e8582287c895ca162dfb87b

## Limitations

- This record reports label facts from a US-market source snapshot, not current inventory or product safety.
- Label quantity comparisons do not establish absorption, efficacy, safety, or clinical equivalence.