Nano brows ghosting is a term used in the field of semi-permanent makeup, specifically for eyebrow tattooing. It refers to the phenomenon where the pigment used in the tattooing process does not fully absorb into the skin, resulting in a faint or 'ghost' image of the original tattoo.

This can occur for several reasons. The primary cause is often related to the depth at which the pigment is implanted into the skin. If the pigment is not deposited deep enough into the dermis, the body's natural exfoliation process can cause the pigment to fade or appear ghost-like over time.

Another factor could be the type of pigment used. Some pigments may not be compatible with the client's skin type or pH level, causing the color to change or fade quickly.

Dealing with nano brows ghosting involves a few steps:

1. **Consultation with a Professional**: If you notice ghosting, the first step should be to consult with a professional. They can assess the situation and recommend the best course of action.

2. **Touch-up Sessions**: Often, the solution to ghosting is a touch-up session where the professional will reapply the pigment, ensuring it is deposited at the correct depth.

3. **Proper Aftercare**: Following the aftercare instructions provided by the professional is crucial. This may involve avoiding certain activities that could cause excessive sweating or exposure to sunlight, both of which can affect the longevity of the pigment.

4. **Use of Quality Pigments**: Ensure that the professional uses high-quality pigments that are compatible with your skin type.

5. **Regular Maintenance**: Semi-permanent makeup like nano brows requires regular maintenance. Scheduling touch-up appointments every 1-2 years can help maintain the color and shape of the brows.

Remember, everyone's skin is different, and what works for one person may not work for another. It's always best to consult with a professional to understand the best course of action for your specific situation.