When it comes to all natural products, we usually think plants, especially essential oils. But there is another option -- minerals.

Spa brand Ahava offers a luxurious line of environmentally responsible face, body, bath and hair products that combine Dead Sea minerals and botanicals.

Ahava takes a very scientific approach to the ingredients and why they work, and you're welcome to visit the site and read about this research in detail if that floats your boat.

We were more interested in watching the behind the scenes video of Kristen Davis doing a photoshoot for the line, and then trying out the mineral shampoo and conditioner.

About two seconds after using the shampoo, we became fans. The experience is sort of trippy, and we had try them few times before we figured out how to explain it: unlike most hair stuff, the products are curiously not-slimy.

You know how sometimes you just can't rinse off the product, and your hair feels coated and overly soft all day? With Ahava, you have the opposite experience, but without being dry. Your hair just feels soft and clean. Also, the products -- and your hair -- smell really good, without being all perfumey.

It's very a low-key, effective, pleasant experience. No drama, it just works.

Ahava is surprisingly affordable, for such a cool spa brand. The mineral shampoo, which also comes in a dandruff formula, and conditioner are just $17 a bottle. You can order them from the website, or look for a local store.