DIY Nail Soak Recipe For Strong, Healthy Nails--1/2 packet unflavored gelatin, 1/2 c boiling water 1. Place gelatin in a glass bowl. Pour boiling water over the gelatin and stir well. 2. Let mixture cool until just warm to avoid burns. 3. Soak your fingertips and nails for 5 minutes. 4. Take fingers out of the solution and massage the mixture on your nails and cuticles. 5. Rinse well.