C'mon now. If we gonna pick nits, I'll take up for LazyB.
If you buy a jug of Roundup and don't dilute it with anything else, is it not 100% ?
The author didn't mention glyphosate.
As to skin toxicity, the MSDS for a glyphosate brand I sell suggests insignificant risk of dermal toxicity. You have been listening too much to those California lawyers that managed to win a big lawsuit against Monsanto for a bogus claim of long term injury. There are no studies that support your assertions about the dermal absorbence.
The dermal toxicity of glyphosate is >5000mg per kilogram of body weight, with similar numbers for oral toxicity.
Basically, it is less toxic than aspirin. While I'm not going to recommend ignoring the safety guidelines of any herbicide label, I damn sure wouldn't make a special mention of the dermal toxicity in a conversation about stump treatment with Roundup, either.
Kindly notice the special mention of "Practically non-toxic" and "Essentially non irritating"
From another
paper on that topic:
As to being a carcinogen? In a webpage used by a law firm soliciting glyphosate "victims" for initiating more lawsuits, I found this handy little news bit from our government: " ...the US EPA changed its classification to evidence of non-carcinogenicity in humans (Group E) in 1991." Any evidence showing carcinogenicity from glyphosate/Roundup remains nebulous at best. That fact, however, doesn't prevent lawyers from winning lawsuits on the topic, nor convincing the users of these products as to the relative safety while using them.
Nitrile gloves and proper protective gear are a good recommendation for all herbicide applications, regardless of what the product MSDS says. You won't be able to find any herbicide anywhere that advises you that it's a safe product, feel free to get wet and stay drenched in it. If I was required by some maniac to pick a herbicide to take a shower in, however, I might select Roundup for that purpose.