Wood Lock is a Chinese medicated liniment/ointment (external analgesic) from Hong Kong. Its intended purpose is to relieve muscle aches and pains. It is highly popular in Hong Kong and sold in North America at Chinese herbalist stores.
Wood Lock has been made by the China Medicine Laboratory and Wood Lock Medicine Company Limited since 1968.
The liniment is based on the formula of the traditional White Flower Oil recipe, in which the creator, Wong To Yick, added several Chinese herbs including Dong Quai. In this sense, it can be considered to contain herbal extracts but it was never labelled.
This liniment has an unconventional form of application, using acupressure methods rather than the conventional massage; the oil is applied on the point of pain and finger pressure is then applied on the point for 15 minutes.
Read more about Wood Lock: USA, Canada, Active Ingredients
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