I’ll try and give the idiots guide!
One of the worst offenders with ANTI ANTIPERSPIRANTS is aluminium. This blocks your pores and prevents you sweating which is why they are fab at stopping you sweating. HOWEVER that sweat (which is basically a kinda toxin that needs to come out) will come out somewhere else so you might get sweaty feet or palms or the sweat will stay inside - not good; it’s a bit like shoving a cork up your bum to stop you going to the toilet. Aluminium is suspected in things like dementia and is a potential (nothing proved yet) caccinogen. The basic fact of blocking your pores with it, is that it alters the body’s natural function…
Many deodorants do NOT contain aluminium, because they do not claim to stop you sweating, they work by neutralising or masking the odur of sweat, so they are techincally safer.
However, deodorants often contain all sorts of other nasties like artificial fragrances.
Brands like Toms of Maine (owned by a company some like to boycott I think), Weleda and Neals Yard make decent deodorants which are basically perfumes.
YOu can sprinkle a bit of bicarb under your pits - not easy to apply but pretty effective and as you mentioned, there are crystal deodorants. Unfortunately it’s still a bit of a minefield because not all crystal deodorant stones are created equal - more info here: http://myzerowaste.com/2010/04/sniff-my-pits/
Here’s an extract of info: The crystal deodorants you see for sale in health food shops are almost without exception ammonium alum. This ammonium alum is made with waste from aluminium factories and nylon factories – it doesn’t work well and because industrial waste is never ‘cleaned’, but just used as a cheap ingredient, the synthetic alum is always contaminated and does cause allergies.
This is why lots of people use crystal deodorants then have reactions to them and think they are all rubbish; they’re in fact buying an inferior product that unscrupulous companies have jumped on the bandwagon of.
Hmmm, not sure this was the idiots guide after all LOL!
Bottom line; if you want to freshen up without the chemicals buy a ‘real’ crystal deodorant (I recommend Sally at Natural Spa Supplies http://naturalspasupplies.co.uk/) or find a brand that offer a decent deodorant or try the bicarb trick. Avoid any anti antiperspirant like the plague.