Medicines & Supplements A to Z > Vitamin B7 (Supplement)

Vitamin B7 (Supplement)

Last updated on July 30, 2019.

Overview   |   Dosage   |   Side Effects   |   Where To Buy  

GENERIC NAMES: Biotin, Vitamin H, Vitamin B7, Vitamin Bw, Coenzyme R


COMMON BRANDS OF VITAMIN B7 IN HONG KONG: Actionvit, B Complex 50, Centrum Junior, Nature’s Way

What is Vitamin B7 for?

Vitamin B7  is a vitamin that converts the food you eat into energy in your body. It is also responsible for gene regulation and cell signaling. The adequate intake (AI) of Vitamin B7 to ensure no deficiency for adults is 30 mcg per day. You should only take a Vitamin B7 supplement when you have a Vitamin B7 deficiency, which is quite rare, or are unable to take sufficient Vitamin B7 from your diet. Symptoms of Vitamin B7 deficiency include thinning of hair and skin, brittle nails and red rashes. 

How to use it?

Vitamin B7 are usually taken by mouth in tablets. The usual adult dose is one tablet daily (30-3000 mcg per day). For specific dosages, refer to the product label.

What are the side effects of Vitamin B7?

Vitamin B7 is water-soluble and accumulation in the body is unlikely. It has no potential side effects. If you experience side effects, tell you doctor or pharmacist immediately. 

What are the other sources of Vitamin B7?

Most people should obtain adequate amounts of Vitamin B7 from a healthy diet. Vitamin B7 is present in many foods including organ meats (e.g. beef liver), meat, fish, seeds and nuts, eggs and vegetables.

Where to buy Vitamin B7 in Hong Kong?

In Hong Kong, Vitamin B7 supplements can be purchased without a prescription from any retail outlet in Hong Kong. This includes grocery stores, convenience stores, medicine shops, and pharmacies. 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 Vitamin B7 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.