Overlays are a coating of a very thin layer of acrylic or gel products applied on top of natural nail without the need to extend. Anything that is applied on top of your natural nails will be considered an overlay. This will give you greater strength in aiding your nails to gain natural growth.

What is the difference between full set and overlay?

What's the difference between an overlay and a "full set"? An overlay of SNS means the product is applied over your own natural nail. No length is added to your own nails. ... A Full Set is when an artificial tip is adhered to your own natural nails to create extra length and form a base for product to be applied to.

How long do gel overlay nails last?

When applied correctly, gel extensions should last between 2-4 weeks (or more depending on how much you hate the grown-out look).