This is Nailtek's nail strengthener for thin nails.

NAIL TEK STRENGHTENER 2 INTENSIVE THERAPY is Nail TEK's nail strengthener for thin nails.
It is a nail strengthener used for weak nails that peel in layers.
It plays a role in protecting the nails by supplying them with nutrition and moisture.
To use, simply apply it to clean, natural nails, avoiding the cuticles. After that, reapply every day, applying a thin layer to create a coating.
If you have used it for about a week, simply wipe it off thoroughly with a remover and repeat the process above. They say doing so makes the remover more effective.
It has a slight shine, like clear nails.
After using it consistently, my nails really became stronger and healthier.
My nails get a lot of damage in the summer due to frequent manicures, so I make sure to apply this nail strengthener during short breaks.