Nail Optimizer will optimize the natural beauty of your nails with a protein and calcium enriched formula. You will have healthy and attractive nails without the need for artifical tips and wraps. Nail Optimizer blends six different types of collagen, gelatin and protein at the right levels that will end splitting, dry, peeling and weak nails. The 2oz. Nail Optimizer refill does not have a brush in the bottle. NEW LOWER PRICE! Nail Optimizer a best seller in professional salons.