The other factor which should be considered to choose good dermal filler is less swelling and other side effect factors. Regardless monophasic, biphasic or even major fillers, swelling risk is always existing. By reducing BDDE (compared with other fillers BDDE mixing rate 60%) and substituting this gap with its specialized cross linking technology called UHDT (Ultra High Density Technology), Lux Fill is realizing less swelling and other side effect factors.