Hard gel nail extensions are a type of nail enhancement that can be used to add length and strength to natural nails. Here is some information about hard gel nail extensions based on the search results:

Ingredients or Materials

• Hard gel is 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.
• Gel extensions are made of copolymers that are already mixed and require curing under an LED or UV lamp.
• Gel-X extensions are made out of gel polish which is applied directly on top of your full natural nail and can be cut and shaped to your preference.

Positive Aspects

• Hard gel boasts plenty of compelling qualities that clients and techs should be talking about.
• Gel extensions are a longer-lasting type of nail polish thats cured by UV or LED light.
• Gel-X extensions are a healthy alternative to acrylics both for the person getting them, as well as the manicurist.

Negative Aspects

• There is no information about negative aspects of hard gel nail extensions in the search results.

In summary, hard gel nail extensions are made of monomers and/or oligomers plus other ingredients that help the gel remain workable, adhere to the nail, harden properly and resist yellowing. Gel extensions and Gel-X extensions are made of copolymers and gel polish, respectively. Hard gel nail extensions have many positive aspects, but there is no information about negative aspects in the search results.