Physicians Formula Eye Booster Super Slim Liquid Eyeliner, Waterproof Precision with a Lash-Boosting Complex, Natural Finish, & Sensitive Skin Approved, Cruelty-Free & Vegan -Ultra Black

Decently long-lasting & water-resistant
I absolutely LOVE the brush tip. It’s quite long and sharp, so it’s really easy to work with. The formula itself is good enough, and probably the best waterproof eyeliner I’ve gotten that’s reasonably-priced. It glides on well, is quite pigmented, and works great overall. I wouldn’t say it lasts all that long, but definitely far more than any typical liquid eyeliner will (especially if you layer it); I wear a LOT of eyeliner though as a goth woman lol. I’d say it reasonably lasts 6-8 hours, sometimes an entire day; it also helps if you regularly deal with the oil that might build up on or around your eyes during the day (because oil will take it right off). However, after having used like 6-8 by now, it typically dries out after the first couple days of use, then makes a come back a few days later. I have no idea why, but just know, if it seems to dry up fast, it’s probably not actually “gone” or used up. I’m impatient though, so sometimes I will add a touch of water… which you probably aren’t supposed to do for a waterproof eyeliner, but oh well 🤷‍♀️ It completely revives it, so I don’t really care. I’d recommend layering the eyeliner 2-3 times (not much more, or else it will pill and might flake off a bit), because the formula is pretty thin. Also, I have decently sensitive skin, and this formula has caused me absolutely zero irritation or any other problems. Idk I think it’s definitely worth a try at least if you’re looking for a reasonably-priced water-resistant eyeliner.

:/
It is a good product, but one of them came pouring the ink through the tip! :/ and now it is dry :/

dries out after a while
I’ve tried it for 3 months and now the tip gets dry by the time I’m doing my 2nd eye, leaving me to finish the look with another liner. Not great.I really liked it at the beginning. It doesn’t smudge, lasts all day, no allergic reaction, great color pigmentation. It’s true that it’ll crumble if you rub your eyes, but it will not smudge. However, the Stila and KVD liners I got in the same order are still going strong, and the liner itself seems to be plenty full so it’s the tip drying that leaves me hanging every time now (last two weeks). I think the value for the money gets cancelled by this issue, so it’s unlikely I’ll get it again. Bummer, because I did like it better than the Stila since the line is smoother on application and dries out even. I’m still looking for my ride or die liner.

A Superior Drugstore Liner…Usually
***UPDATE: Since writing the original review I repurchased this product for the fourth time (in Ultra Black) to check again if I could make it work, since I stumbled across a couple recent reviews talking about having to shake up the pen A LOT. I am so happy to update this review to four stars. My newest one is just as deep, opaque black and smooth as I remember from my old ones. Surprisingly, I didn’t have to shake more than 20 seconds initially. So I don’t know for sure if the ones I bought before that were terrible were duds, or if some of the pens when new have to be shaken for quite a while to get them started. That’s why I rated it four stars instead of five, since there may be quality control issues. BUT I still recommend this more than any other drugstore liquid liner. It’s seriously worth giving a shot before writing it off. As for the eyelash growth claim, it is unlikely to work for that because the “active” ingredient (myristoyl pentapeptide-17) has no published, peer-reviewed studies backing it up for lash growth, although that doesn’t mean it won’t do something. It just means that it hasn’t actually been scientifically shown to do anything yet. Some people say they have noticed a difference though so it probably can’t hurt to try. But I recommend this liner because of its perfect tapered brush tip that blows any felt tip or cheap, skinny brush tip out of the water. It’s also black black black and resists smudging quite well, even on my oily lids in the heat of a Texas summer. It takes a long time for the pen to dry out, too, although after a while you do sometimes have to stop during application and shake again a couple times, but I personally don’t mind. It may smudge if you have seriously watery eyes and it does dry down to a slightly shiny finish, which you may dislike if you prefer completely matte black liner. In any case, I am so incredibly thrilled to be able to recommend this again and to use it again. I will repurchase forever, even with the possibility of dealing with duds. See original two-star review below.***Original review:Writing this review breaks my heart. When this product first came out, it was definitely instantly in my top 5 list of fave makeup products ever. It was my number one fave liner ever. The brush tip is genius. So easy to use for a perfect line, thick or thin, and makes the flick of a cat eye so so easy. This product is the reason I will never be satisfied with anything but a brush tip liner for cat eyes again. I can’t speak to the lash growing claim, but the brush tip, price, long wear, smudge resistance, and long period of use before dry out made this product a star.So what is the problem? Well, another of the winning features of this liner was that the shade Ultra Black was super super black, as you would expect. It pains me to say that, unfortunately, Physicians Formula at some point a couple of years ago reformulate the shade Ultra Black and now it is not as black. In fact, it’s not even opaque, even after multiple passes. I was so incredibly disappointed in this that I have even purchased the product multiple times since the reformulation, hoping that it was just a fluke, but each purchase has ended in a return. No more. I am also not the only former fan to notice this change. I am looking for a replacement now. So far the new fave is Kat Von D Tatoo Liner, which is a bit pricier and harder to get. Too bad.I really can’t imagine who would enjoy this product now, since it doesn’t provide an opaque line. But, I can at least still say that the ease of use and brush tip are still great, hence the two stars.

This is a really nice eyeliner. It goes on clean and smooth and is very easy to apply and it lasts long. The best part is it doesn’t leave you with smudges or Dark Shadows under your eyes if you fall asleep with it and it comes off very easily with miceller eye cleansing solution.

Lo compre por probar ya que el que uso generalmente no estaba disponible. Siendo más barato es mucho mejor, con mejor aplicación, más densidad del color y aguanta mejor. Volveré a comprar este.