Hello Donia! I have taken a look to your website and I suggest using copy that highlights how the Vichy experience and results are different from other spas. Like Adam Knipes mentioned, talk to your current customers to better understand what is it that they like about your services over other spas, and what is it that makes them come back to you, and use their words as a guideline to develop the copy for your website and all other marketing efforts.

Also, since Vichy's offer is different from what other similar businesses offer, I suggest inviting top bloggers and editors from relevant media to experience your spa in exchange for coverage. This can be handle as an exclusive to select media.