Glamour Soft dermal filler is the lightest in the whole Glamour product line. It's 100% hyaluronic acid and it might be melt with Hyaluronidase in 30 minutes. Most of our Korean Doctors use it for lips, nice lines and under eye. Glamour Soft dermal filler is high viscosity so it remains in shape and it will last about 1 year depends on patient.