About HYDROQUIN ONE 4% W/W
Topical skin-lightening agent
Used for
- Short-term treatment of melasma and other dark patches, usually with sun protection.
Usual adult dose
Apply a thin layer to affected skin once or twice daily, as directed.
Common side effects
- Redness, burning, dryness, or itching
- Rare allergic skin reaction
- Long-term use may cause blue-black skin discoloration
Important warnings
- For external use only; avoid eyes, mouth, and broken skin.
- May increase sun sensitivity; use sun protection.
- Stop if severe irritation or unusual darkening develops.
- Avoid prolonged or widespread use; treatment needs monitoring.
Pregnancy
Safety is uncertain; generally avoid during pregnancy unless a clinician recommends it.
Breastfeeding
Safety is uncertain; ask a clinician before use and prevent infant contact with treated skin.
Interactions
- Other irritating skin products may worsen redness or burning.
- Benzoyl peroxide or hydrogen peroxide can temporarily stain skin.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.