shellac gel nail polish

I don't have any problem with Gelish polishes sticking properly without using this.
I simply use alcohol swab to dehydrate the nail.
Not absolutely necessary.

Edit: 6 months later and I'm here to buy a bottle to help manicure last longer on friends nails.
I'll try it myself with darker colors that I tend to apply heavier - those lift more than light colors for me.

I am a gelish fan and that is all I wear. I also do traveling manicures and pedicures. The instructions for applying gel polish is you have to lightly buff the nail, use the cleanser then do you base coat etc. PH Bond is optional but I find my customers do not like to have their nails buffed because it can be damaging to the nail. I think this dehydrates better than just plain alcohol or gelish cleanser. I do recommend still using the cleanser and the ph bond if you have super smooth nails and you don't want them buffed. A couple people have super smooth nails and they didn't want them buffed so I just used cleanser and their polish peeled but if the nails is slightly buffed or dehydrated it works fine without buffing. PH bond is good to have.

I was having issues with the Gelish polish peeling off my nails after about a week. Regular nail polish rarely lasted more than 2-3 days before it started peeling. I was using alcohol wipes before but that didn't work well either. So, I decided to purchase the PH Bond. This stuff works for me! I have had the polish on now for more than a week and it's still perfect - YAY! If you are having problems with your Gelish peeling or not lasting, I would consider trying this product. It's fairly inexpensive and it does the job well.