Healthy skin is a good protective barrier. You can put salt on it without feeling pain.
However, if your skin has an open wound, the protective barrier is broken.
If you put salt on the wound, you will feel pain. You may feel pain even if you put water on it.
Likewise, an atrophied vaginal lining is like wounded skin. It is sensitive to all kinds of treatment products and even to water.
The more severe the atrophy is, the more sensitive it becomes.
This is why we have designed several levels of NeuEve products to accommodate women with different severities of vaginal atrophy.