Grocery stores sell stripped salon hair products?

Picture from : http://peggyshairsalon.com/

  If you don't know by now, there has been this debate going on about whether professional salon brand name products are okay to purchase at grocery, drug, or retail stores. Now, I'm not talking about regular hair products such as Cream of Nature shampoo at grocery stores being stripped. Please don't get that confused. Far as I know, there is nothing wrong with buying those type of products at a supermarket.
  I'm talking about grocery stores selling professional hair products such as Paul Mitchell or Nexxus. Some tests have found traces of salmonelia in professional hair products from grocery and drug stores. It has also been stated that some professional hair products at these stores are expired or about to expire.
  It is even rumored that products have been contaminated by diluting or refilling empty bottles with other products and can be the reason why products are cheaper to buy at supermarkets. This is also called Diversion. Diversion is when professional hair products are being bought from places other than a salon such as grocery, drug, and retail stores.
  So to be safe, it is better to buy professional hair products from a salon because legit distributors sell the most guaranteed and real products to licensed salons, professional stylists, and colorists. It is also okay to buy hair products at your local beauty supply stores ( which is what I do ) because the person or people who owns the store has their license to sell products. Now in conclusion, it is stated that this situation happens rarely but it is good to know in case you suspect stores near you are doing this.