As the

Cons of artificial nails from acrylic

Since the composition of the material includes unnatural components (methylacrylic and acrylic acids), they may well provoke skin irritation, as well as the occurrence of allergies. In addition, these components give the nails fragility and brittleness. It should also be borne in mind that directly at the time of extension you will have to breathe a somewhat harsh smell of acrylate. The fact that in the case of cracking of acrylic nails they will have to be built up again may be inconvenient.