I am a Massage Therapist and I use this product on clients daily. They notice immediate results from pain that cannot be resolved from massage treatment. One client had PCOS and uses it regularly to manage the pain of that condition. Another client thought she was starting to get arthritis symptoms in her feet & ankles and noticed relief right away after applying the magnesium lotion to her legs & feet. So many clients apply this for relief of headaches, leg cramps, shoulder pain, etc. Every client that has used this product after my recommendation has messaged me to say how they appreciate the recommendation and how much better they are feeling. So many women are deficient in Magnesium and with your skin being your biggest organ in your body, this is the most effective way to absorb magnesium into your system. If you want to have a better sleep, this can also be beneficial. You will not be disappointed in your purchase of this product!