We used the serum twice a day, to see if our nails felt less prone to breakage (iStock/The Independent) For many of us, having well-presented nails offers a lift, so it’s important to take care ...

The newer Nail Envy in Bubble ... It does contain a Tri-Flex Technology that surrounds each nail like a shield from splitting ...

There's currently 35 per cent off everything in the OPI ... OPI Nail Envy Nail Strengthener. The sheer-coloured nail strengthener has been upgraded with a new formula that features Tri-Flex ...

All of that practice led me to realize that a manicure is only as good as the base coat you use, and the OPI Nail Envy Nail Strengthener is the best there is. Plus, you can get it on sale now ...

If you purchase an independently reviewed product or service through a link on our website, SheKnows may receive an affiliate commission. The OPI Nail Envy Nail Strengthener ($20) helps to ...