How long do they last? Our 20 self-adhesive gel nail polish strips come in 10 sizes and last up to 18 days, often the only reason they need to be removed is that your nails grow out. If your nails need a tidy up you can simply file the edge. We also provide spare Nail Strips in the package if any of the nails are ever damaged. Are they safe to use? Yes, our gel nail wraps use only tested and trusted, non-toxic ingredients and are free from animal testing and ingredients. Will they damage my nails? Our gel nail polish strips wraps are gentle on the nails and can be removed quickly at home. They won’t damage your nails if removed gently using nail polish remover to weaken the adhesive. To remove simply lift the edge of the wrap, drop a little nail polish remover on your nail and gently peel off. Give your nails a buff and oil and you're ready for your next mani! Will they fit my nails? Unlike overseas brands, our gel polish wraps are designed to fit American women’s nails which are often larger. We provide over 10 different sizes per hand in every pack and have ensured every woman will be able to get a perfect fit. Our gel wraps are also stretchy which means you can gently stretch them so they fit perfectly on a slightly larger nail. You will always have some leftover gel polish wraps after your manicure for touch-ups or to mix and match your own Istana looks! Do I need a UV or LED lamp? Yes, our gel nail strips are semi-cured and flexible for a perfect application this means you will need a lamp to harden the wrap. We sell a Lamp Kit which contains a LED lamp, cuticle pusher and nail file, if you don't have one then you can add this to your order. How long will the wraps last out of the packet? Gel polish wraps are light-sensitive and will harden with prolonged light exposure. If you want to prevent any unused or open wraps from hardening then simply store them in their light protective pouch.