Gel and shellac are basically the same, they are often confused because they both involve a long-lasting, shiny finish for nails and the application process is the same. Here's a breakdown of the key differences:
Gel Polish:
Formula: Gel polish is a thick, gel-like substance that is applied to the nails and cured under a UV or LED lamp.
Durability: Gel nails are known for being very durable, lasting up to 2-3 weeks without chipping or fading.
Removal: Gel polish is removed by acetone
Application: Gel polish is applied in several layers (base coat, color coats, top coat), with each layer being cured under the lamp.
Flexibility: Gel nails can be used for both natural nails and for sculpting fake nails, like in gel extensions.
Shellac:
Formula: Shellac is a hybrid polish that combines regular polish and gel. It is thinner than pure gel polish and also cured under a UV lamp. Shellac is a brand name.
Durability: Shellac is also long-lasting, typically lasting about 10-14 days without chipping, but it may not be as durable as full gel polish.
Removal: Shellac is easier to remove than gel polish; it can usually be peeled off (although it’s recommended to use acetone to prevent damage to the nail).
Application: Shellac is usually applied in 2-3 thin coats (base, color, top) and cured under a UV lamp.
Flexibility: Shellac is usually used for enhancing natural nails, rather than for extensions or sculpting.
What happens to the nail itself is covered in does getting your nails done ruin your natural nails.