*Sent for review*
I am totally out of room in my Helmers right now, so I kind of have nail polish all over the place. The good thing about this predicament is that I spotted a few similar polishes in the spring and summer collections for you. It was easy to see the similarities with all of these sitting out right next to each other. First we have Sally Hansen Miracle Gel Swimsical and Zoya Talia. These are definitely not dupes, as Swimsical is much lighter and more blue, while Talia is darker and has more hints of green. But they are in the same family, so I thought I'd show them side by side. This is three coats of Swimsical and two of Talia. Both have very nice formulas.
I would call OPI Lost My Bikini in Molokini and Zoya Serenity dupes for all intents and purposes. They look nearly identical in person and on camera. Zoya Serenity is maybe a hair dustier and ever so slightly more blue based than the OPI, but they are definitely not different enough to own both. This is two coats of each polish, and both of these also have a very nice formula.
OPI That's Hula-rious! and Zoya Tiana are also pretty much dead-on dupes. The OPI is a smidgen brighter and more white-based, but honestly, that's nit-picking a lot. Most human beings will not notice any difference between these two. This is two easy coats of OPI That's Hula-rious! and three slightly streaky coats of Zoya Tiana, so in this instance, I would go with the OPI.
In the category of "Not Dupes", we have Sally Hansen Miracle Gel Dive Bar and OPI Can't Find My Czechbook. I thought these would be closer. Czechbook is much much lighter and a different shade of blue. I was also going to compare these to China Glaze Bahamian Escape, but that is WAY lighter than both of these, so it was pointless. No dupes here and I am fine with that because I love these blues!!
Hope this was helpful! I may have more comparisons for summer collections coming up too.