Medicines & Supplements A to Z > Hydrogen Peroxide

Hydrogen Peroxide

Last updated on June 27, 2019.

Overview   |   Dosage   |   Side Effects   |   Where To Buy  

GENERIC NAME: Hydrogen Peroxide 

CHINESE NAME: 過氧化氫(雙氧水)

COMMON BRANDS IN HONG KONG: Banitore, Kam Shing, Shui Cheung, Valiant 

What is Hydrogen Peroxide for?

Hydrogen Peroxide can be used as an oxidiser, bleaching agent and antiseptic that can be used for oral hygiene (with Hydrogen Peroxide 6%) and skin disinfection, particularly cleansing and deodorising wounds and ulcers.

How to use it?

Hydrogen Peroxide can be used as a mouthwash or applied topically to the skin. If you want to use it for oral hygiene, you can use Hydrogen Peroxide 6% mouthwash by rinsing or gargling 15 mL 2-3 times daily for 2-3 minutes and remember to dilute the mouthwash in half a tumblerful of warm water. This is applicable for both adults and children. If you want to use it for skin disinfection, particularly cleansing and deodorizing wounds and ulcers, you should apply 3% or 6% Hydrogen Peroxide to the skin and consult product literature for further information. 

What are the side effects of Hydrogen Peroxide 

Hydrogen Peroxide rarely cause side effects but allergic reaction may occasionally occur. 

Where to buy Hydrogen Peroxide in Hong Kong?

In Hong Kong, Hydrogen Peroxide is an over-the-counter medicine and can be purchased without a prescription from any retail outlet in Hong Kong. This includes grocery stores, convenience stores, medicine shops, and pharmacies. It can also be obtained from doctors. To find a pharmacy near you, refer to the list of pharmacies (“Authorized Sellers of Poisons”) from the Hong Kong Department of Health. 

For more information about drug names and ingredients, you can visit Hong Kong’s Drug Office at

For detailed information about the use of Hydrogen Peroxide in children, pregnancy and breastfeeding, and for questions about drug interactions, please check with your pharmacist or doctor.

Disclaimer: our goal is to provide you with the most relevant drug information and common dosage for Hong Kong. This information does not constitute medical advice. For specific treatment recommendations and advice, always discuss with your doctor or pharmacist, and follow the instructions included with your specific medicine.