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Unbekoming's avatar

Author's Note

Readers have flagged, correctly, that isopropyl "rubbing alcohol" is not the ideal solvent for a topical preparation. Grain alcohol at 70–75% is more skin-compatible and less drying. Same solvent action on the resin and alkaloids.

Kloss's 1939 text specifies "rubbing alcohol (70 percent)" without naming the alcohol. In 1939 that phrase covered both ethanol and isopropyl formulations. Isopropyl became the default "rubbing alcohol" over the following decades on cost, after Standard Oil commercialized it in 1920 as a refining byproduct. His original readers may well have used ethanol.

The essay is updated. The recipe now specifies grain alcohol at 70–75% (Everclear 151 works directly; higher-proof grain alcohol diluted with distilled water also works). Marion Farms and Organic Alcohol Company are the standard sources for organic grain alcohol.

For the reader who hit $100 goldenseal on Amazon: Kloss himself added a note to the recipe that if goldenseal is not available, make the liniment without it. The two-ingredient version (myrrh and cayenne in grain alcohol) is field-workable. He anticipated the shortage sixty years before international treaty ratified it.

Thanks to the commenters who caught this.

j t's avatar
16hEdited

Great mixture EXCEPT for the rubbing alcohol -- very drying and damaging to skin. I wouldn't use ethanol either, which is also toxic to the skin. Better to use something else, like DMSO, as the eluting ingredient, perhaps diluted to 30% or so with water or physiologic saline. Even better, mix in some coconut oil.

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