Eye Booster, Lash-Enhancing 2-in-1 Eyeliner Serum, Dermatologist Approved, Hypoallergenic, Cruelty-Free & Vegan - Blackest Black

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.

Wanted to try a brown liquid eyeliner I typically do go for clean formulas. I’m not sure if this is very clean. I know it’s for sensitive eyes, but I thought I’d just give it a try. this product is absolutely amazing. It works like a dream. I will follow up with a photo, and also will follow up how long it lasts. I’m not using it on a daily,but I’m very pleased with how easy it goes on how good it looks. The color is awesome and stays all day even through chiropractic appointments when my face is squished in that pillow, it’s not a flake, not a smudge and to come off even water takes it off even though I double cleanse every night this is highly recommended in the price point is inexpensive and it came really quick as far as it being a serum for eyelash growth. I have not noticed anything yet, but will follow up if I do that’s not why I bought this, but it was a nice bonus.

This is the best liquid eyeliner I have ever used. You name it, I’ve tried it. LOL. 1. This eyeliner lasts all day and does not smudge but still not hard to remove with regular eye makeup remover. 2. Does not irritate my eyes at all. My eyes are super sensitive and most eyeliners make my eyes red. They also burn or make my eyes itch and swell. 3. Very easy to apply. The tip is very pointed but not stiff and holds its shape till the very end. It’s not hard to draw a very fine, smooth and precise lines. Wider lines can be built from multiple fine lines or just use the sides of the tip to draw. 4. The ink flows very evenly so the lines look very smooth, even and solid in just one stroke. 5. It really lasts. ***For those who think it dries out in just a few uses (I used to think that at first), there is actually a pumping mechanism in the cap. When the ink does not flow enough or feels dry, you just put the cap back on but not all the way. You’ll feel like you’re pushing against a coil spring. Just pump the pen against that spring 2-3 times. You’ll find that the tip becomes saturated with ink again. It lasts me months and months once I started doing that. 6. As for boosting eyelash growth. I can’t tell for sure because I use other lash serums at night too. But they do not make my lashes fall like many other liners. 7. The price!!! Are you kidding? I prefer it over Stila and other $20,$30,$40 eyeliners I’ve tried. Guys for this price, just give it a try. If you don’t like it, you won’t feel too bad. It may become your new fave.

***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 just the eyeliner I've been looking for. It has a fine tip and applies easily without having to tug or stretch the eyelid. I'm impressed.

Love this liner. Nice thin precision liner, waterproof, lasts all day. Checks all the boxes. Will definitely buy again.

I would normally give this eyeliner 5 stars. However, each time I purchase (which is numerous times) the tube only lasts about 3 weeks. Which is frustrating. This eyeliner is great! Its easy to apply and glides on. It’s the perfect dark brown color and washes off great. I just can’t afford to buy eyeliner every 3 weeks.

TLDR: Pros: Suitable for sensitive eyes; doesn't cause itchiness or irritation. Good longevity; doesn't smudge, even in hot weather. Lovely dark brown color. Precise application thanks to the brush tip. Budget-friendly option. Cons: Tendency to crumble if touched, so not ideal for habitual eye-rubbers. Requires multiple coats for intense pigmentation. The pencil may dry out faster than expected, making it less cost-effective. Who Should Buy: Individuals with sensitive eyes looking for an eyeliner that won't irritate. Those seeking a long-lasting eyeliner for warm weather. Makeup enthusiasts who prefer a dark brown eyeliner. People who are patient and don't mind shaking the product before use. Shoppers on a budget who want a decent eyeliner option. Overall Rating: 3.5 out of 5 Hey there, fellow makeup enthusiasts! I wanted to share my thoughts on the Physicians Formula Ultra-Fine Liquid Eyeliner in Dark Brown, and I must say, it's been an interesting journey with this product. Let's dive in with an honest and friendly chat. First things first, if you have sensitive eyes like me, you'll appreciate that this eyeliner doesn't provoke any itchiness or irritation. That's a big win in my book, and it's why I keep coming back to it. Now, onto the performance. It's not the absolute best eyeliner I've ever used, but it's pretty good in terms of longevity. It won't smudge on you, even on sweltering days, which is impressive. However, there's a catch – it does have a tendency to crumble if you touch it. So, if you're a habitual eye rubber, you might want to be cautious. The color, a lovely dark brown, is fantastic. However, it doesn't always come out as pigmented as I'd like. You might need to apply a few coats to get that rich, intense look. Also, be prepared for the pencil to dry out faster than you'd expect. That can be a bit frustrating, and it does make it pricier in the long run compared to non-liquid liners. But wait, there's a trick! A little shake-shake before application can work wonders, as some recent reviews have mentioned. It might take a bit of extra effort, but it's worth it because the brush tip on this eyeliner is a game-changer. It makes creating precise lines and those sassy cat-eyes a breeze. In the end, I'm in a bit of a love-hate relationship with this eyeliner. It's a dependable, wallet-friendly option for sensitive eyes, but it does have its quirks. If you're patient and don't mind the occasional shake, it might just become your go-to liner. As for me, I'll keep using it while I search for that perfect, hassle-free alternative. Happy makeup-ing, friends!

My favorite eyeliner ever!!!! It’s amazing and so easy to apply. I buy 6 at a time so I never run out

I got an eye allergy! Do not buy !

Muy delgado, dura todo el día y no explota cuando te lo llevas en avión (como el de NYX)

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.

Don’t mind my struggle to get the package open it was not as hard as I probably made it look. I really like the formula of the liquid, the feel on the skin, and the shape of the applicator. Was very easy to get a nice shape and a smooth line. The one thing is if I bought again I probably would by the true black rather than just the ‘black’ as this one is more of a charcoal or dark grey and I do like a really rich black.