Wood Lock

Wood Lock is a medicated liniment/ointment 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 . In this sense, it can be considered of containing 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.

USA

As of 1994-1996, the medicated liniment shipped to the was packaged in .85- and 1.7-fluid-ounce glass bottles with black plastic caps. The label contained a photo of a man's face as well as "WOOD LOCK Medicated Balm" in both and writing.

It was recalled in the on November 19, 1996 because of incorrect packaging that could result in children ingesting the poisonous ingredient, resulting in severe injury or death.

Canada

Wood Lock Medicated Balm is imported by T.C.UNICORN LTD in Toronto. The genuine Wood Lock Medicated Balm is packaged in a 50mL bottle, the front of the package has a dome shape window, with "NPN # PENDING" printed at right side above the window, at the back of the package has directions both in and , one portrait of the inventor Wong To Yick.


There are imitation Wood Lock sold in Canada, the fake package has a squarish window at front, no "NPN# PENDING"; three portraits at back, no English / French dual language direction and no importer information.

Active Ingredients

Per 50 milliliter:
* Camphor 4.5g
* Menthol 17.0g
* 15.0g
* 6.0g

Sources

*
*Package Insert of Wood Lock Oil, as on 27 March 2006