If you have a spa which you own then you need to have the microdermabrasion treatment at your place for sure and that will mean that you need to have the microdermabrasion equipment which will enable you to give the treatment.
The microdermabrasion machines be it the diamond microdermabrasion or the aluminum oxide microdermabrasion machines are costly and if need be it is better to select the machines from an existing owner and buy the sued machines.
There are variety of places where you can go to find that and the one of the places if you are looking offline is the distributor of the spa equipment. These people will generally have all the used as well as the original products to sell.
Then comes the next part which is online and in this you can easily look for the bets site which sells the products and that is eBay. All used equipment can be bought here. Make sure that you check the seller rating so that you have the authentic equipment in your hand after the sale.
There are specific Spa Equipment retailers online which dabble in the spa equipment exclusively.
Buying used equipment helps as then you can very easily save on thousands of dollars and this will work absolutely wonderfully.
For example a brand new machine may cost you around $12000-$13000 whereas the used one you can get for around $3000-400. Now that will be a bargain if you can ensure that the used equipment is in absolute healthy condition.
Last I Checked on eBay even the at home kits were available for sale for at least one third the price of a regular cream.