Hydroquinone

Hydroquinone is a skin-lightening agent used to reduce the appearance of dark patches on the skin. It is commonly applied to the skin to treat conditions like hyperpigmentation.

Hydroquinone works by decreasing the formation of melanin, the pigment responsible for skin color. It is often used in situations where skin discoloration is a concern.

Information about Hydroquinone

Hydroquinone Uses

Hydroquinone is typically used to lighten areas of darkened skin caused by various conditions.

  • Melasma
  • Age spots
  • Freckles
  • Post-inflammatory hyperpigmentation
  • Chloasma

How Hydroquinone Works

Hydroquinone works by inhibiting an enzyme called tyrosinase, which is essential in the production of melanin. By reducing melanin production, it helps lighten the skin.

This action makes it effective in treating hyperpigmentation and other related skin conditions.

It is important to apply it only to the affected areas to avoid undesired lightening of normal skin.

Common side effects of Hydroquinone

Not everyone experiences side effects from Hydroquinone, and many side effects are mild and temporary.

  • Skin irritation
  • Redness
  • Dryness
  • Itching
  • Minor burning sensation
  • Allergic reaction

If you experience serious or persistent symptoms, contact your healthcare provider.

CONTENT DETAILS

Written By
Douglas C. Goldberg, MD
Reviewed By
Philip Schein, MD
Last updated
28 Nov 2025 | 03:00 PM (UTC)

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Expert advice for Hydroquinone

  • Apply Hydroquinone only to affected areas and avoid contact with eyes and mouth.
  • Use sunscreen regularly, as Hydroquinone can make your skin more sensitive to sunlight.
  • Avoid using other skin products that may cause irritation unless advised by a doctor.
  • Do not use on broken or irritated skin.
  • If you notice any unusual skin changes, stop using and consult a doctor.

Always consult your doctor for personalized medical advice and before starting any new treatment.

Frequently Asked Questions

How long does it take for Hydroquinone to work?

Hydroquinone may take several weeks to show noticeable results. It is important to use it consistently as directed by your healthcare provider.

Can Hydroquinone be used on all skin types?

Hydroquinone can be used on various skin types, but it is essential to test it on a small skin area first to check for any adverse reactions.

Is Hydroquinone safe for long-term use?

Hydroquinone should not be used for extended periods without medical supervision. Long-term use can lead to unwanted skin effects.

Can I use Hydroquinone if I am pregnant?

If you are pregnant or planning to become pregnant, consult your doctor before using Hydroquinone to ensure it is safe for you.

Does Hydroquinone interact with other skincare products?

Hydroquinone may interact with certain skincare products, especially those containing benzoyl peroxide or resorcinol. It’s best to consult your doctor before combining treatments.

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