Hard Gel vs Acrylic
Hard gel is more flexible and stronger than acrylic, but it's not as hard. Someone who is used to acrylic may feel that hard gel is weaker, but that is not true. Hard gel can withstand greater pressure, and it is less likely to break or crack than acrylic.
What is hard Gel: Hard gel similar to acrylic in its chemical makeup. It's made of monomers and/or oligomers (chains of monomers) plus other ingredients that help the gel remain workable, adhere to the nail, harden properly and resist yellowing.
Which is healthier gel or acrylic nails?
Gel nails are a healthier alternative for the nail than acrylic. They are less likely to cause damage to the natural nail or nail bed. Gel nails also feel more natural and less rigid than acrylic, so if you accidentally hit them against something they are less likely to snap!