Is there an artificial nail covering that can be make to look natural?

My nails are usually long and strong except during cold weather. Unfortunately, they have a tendency to snap right off. I've had acrylics, but they don't look like a natural nail and have to have nail polish applied. I want something that will let me have long nails but be able to go without polish or with just a coat or two of clear.Is there an artificial nail covering that can be make to look natural?
Almost every nail strengthener product leaves a nice and natural looking gloss.Is there an artificial nail covering that can be make to look natural?
We have used Sally Hansen Nai hardener. Works wonders.

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