About Hydroquinone 4% w/w
Topical skin-lightening agent
Used for
- Treats melasma and other dark patches caused by excess skin pigment.
Usual adult dose
Apply a thin layer to affected areas twice daily, as prescribed; reassess after about two months.
Common side effects
- Redness, burning, dryness, or itching
- Contact dermatitis
- Rare blue-black skin discoloration with prolonged use
Important warnings
- For external use only; avoid eyes, lips, and broken skin.
- May increase sun sensitivity; use sun protection during treatment.
- Stop if severe irritation or unusual darkening develops.
- Long-term or widespread use can cause ochronosis, a persistent skin discoloration.
Pregnancy
Safety is not well established; generally avoid during pregnancy unless a clinician advises use.
Breastfeeding
Safety is uncertain; avoid applying to the breast or areas an infant may contact.
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 It may be incomplete or out of date.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.