Tincture of benzoin

Tincture of benzoin is a pungent solution of benzoin resin in alcohol. A similar preparation called Friar's Balsam or compounded tincture of benzoin contains in addition Cape aloes and storax (liquidambar resin).

It has two main uses, as a treatment for damaged skin, and as an inhalant.

It is often applied to skin before applying tape or other adhesive bandages. To some degree, it protects the skin from allergy to the adhesive in the tape or bandage, but mostly it makes the tape or bandages adhere much longer. It is also used by athletes for its reputation of toughening skin exposed to the tincture.

It can be applied to minor cuts as a styptic and antiseptic.

It is also used as an oral mucosal protectant, for recurring canker sores.

It can also be inhaled in steam as a treatment for various conditions including asthma, bronchitis, and colds.