| Features | |
| Also known as | Quinol, 1,4-benzenediol |
| Blood pressure | No significant effect |
| Chemical name | Hydroquinone |
| Dosage (medical) | Topically, 2-4% concentration, applied 1-2 times daily |
| Dosage (sports) | Not applicable |
| Effects | Reduces the production of melanin in the skin |
| Formula | C6H6O2 |
| Half-life | 1-2 hours |
| Hepatotoxicity | Low, but toxicity can occur with systemic absorption or excessive use |
| Lab Test | Not routinely required for medical use |
| Main action | Skin lightening |
| Side effects | Skin irritation, allergic reactions, possible increased risk of skin cancer with prolonged use |
| Storage conditions | Store at room temperature away from light and moisture |
| Strength | 400 mg |
| Substance class | Phenol derivative |
| Trade name | Eldoquin, Melanex |
| Use in sports | None |
| Water Retention | None |
| Manufacturer | Ipca Laboratories Ltd |