Loreal la manicure diamond force base coat is a 2 in1 powerserum and base coat combined if you suffer from weak and soft nails then you need to reinforce them the green powerserum is enriched with calcium xt and helps protect your nails from splitting while the transparent base coat protects the nail surface from daily aggressions and helps maintain colour your nails will feel harder stronger reinforced and more resistant use before applying your chosen nail colour or daily on its o