I saw a pop up ad on facebook and bought fibreglass gel for my nails. The promise was strong nails, and even the possibility of repairing splits and breaks. The product arrived with no instructions and no ingredient list.  I used the gel for a few weeks, but after the last application the skin around my nails started stinging. I washed my hands immediately. My fingertips became really sore, and then after a few days I developed blisters under the tips of my nails. The blisters are now weeping, and my finger tips are still very painful. I would NOT recommend this product.