Golden Rose Nail Expert Black Diamond Hardener Nail Strengthener

nail hardener with black diamond powder for thin, easily broken and weak nails.

Black Diamond Hardener is a dual patented formula enriched with micro black diamond powder and hardening ingredients that creates a shiny, hard and protective layer on the nail, instantly strengthening brittle, soft and weak nails.

- With its quick-drying hardening film layer, it helps prevent peeling, breaking and layering of your nails.
- It protects your nails against the harmful rays of the sun with its UV filter.

Directions for Use:

- Shake the bottle.
- If you want to apply under nail polish, use it as a single layer on clean and dry nails, apply your nail polish after drying thoroughly.
- For extra protection, apply 2 coats on clean and dry nails.
- For best results, use regularly 2 times a week.