Anyone heard of this type of cleanse?

It is called Dieter's Cleanse by Nature's Sunshine. It looks as if it is both a Bowel Cleanse & a liver cleanse. I have never heard of this product and was wondering if anyone could give me their expert opinion on its safety. Anything that says the word diet & cleanse in it kinda sways my opinion, but I know Nature's Sunshine makes wonderful products. My cousin told me she was using this product and it concerned me because she mentioned that she was taking about 18 pills each day & this is her first cleanse. I thought it sounded a little intense for a first timer. I myself have only done one cleanse & loved it, but it was a very mild cleanse. Here is the link Thanks in advance for replies!

http://www.naturessunshine.com/products/catalog/products.asp?stocknum=3220