Based on a Lifestyles presentation by Terri Wilks, a wholesaler of adult products for 13 years It is very hard to tell difference between rip-off products and those that really work. No FDA to regulate.
Labels are very misleading.
For example, many of the heating lotions contain sugar which in the vagina can cause yeast infections. It gets by with its gimmick since the name of the company is Carnation, but the oil is really mineral oil. It tricks you into thinking its from the carnation flower. Whipped Cream products often taste bad. Those applied with propellents to make foam often worst.