I recently went back and saw that is DOES have a warning (curse my distracted nature):
"Very refreshing aroma, woody and wintergreen, very similar to Birch. Use with caution, the EO is approximately 99% salicylate, the main ingredient in aspirin (irritant, sensitizing). Many aromatherapists try to stay away from this oil. Methyl salicylate has been incorporated into liniments and ointments for muscular skeletal problems. Use tiny amounts in muscle/joint blends, patch test. Not recommended for usage in persons who take aspirin regularly or who are allergic to aspirin. Not to be used on children, the elderly, pregnant women and pets. Blends well with pine, peppermint, and lemon. Flash point: 200°F"
Though I still don't fully understand how the lye and the saponification process "breaks down" the EO and inhibits the therapeutic or toxic properties. I haven't read anything definite on that (just some different opinions)... though I think it may be because no one knows for certain? I'm still nixing wintergreen.
Oh, look, it's on a list of toxic EO's:
http://www.essentialoils.co.za/toxic-oils.htmIs it just me or does it seem like soaping websites warn us sufficiently about the hazards of lye but they neglect to warn about the potentially dangerous nature of essential oils? Definitely not being talked about enough. There needs to be more education about how to select, handle, store, smell, and use them or someone is going to do something stupid! They are super powerful and I think we sometimes pass them off as nice smelling oils and ignore the potential Mr. Hyde nature of them. Oh now I'm just ranting...