I've brought this up before on this forum and got all the same kind of advice you got, and I do everything properly, and I've been doing it once or twice a week for years, so for me it's just become a fact of life that it's going to hurt
Data that remained non-normally distributed and/or heteroscedastic after log transformation were analyzed (not log-transformed, but still 1e13-transformed) with a KruskalWallis test, while normally distributed and homoscedastic data were analyzed with a one-way ANOVA, performed on the log-transformed data as necessary
And somewhere on the label, in small print, are four words that tell you everything: For Research Use Only
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When finished, I rub the area to help the B12 dissipate but also to make the site feel better
Learn more about regulatory considerations in the complete AOD 9604 guide