Physicians Formula | Eye Booster Waterproof Ultra-Fine Liquid Eyeliner - Blackest Black - Product front facing on a white background
Physicians Formula | Eye Booster Waterproof Ultra-Fine Liquid Eyeliner - Blackest Black - Product front facing on a white background Eye Booster Waterproof Ultra-Fine Liquid Eyeliner - Blackest Black Eye Booster Waterproof Ultra-Fine Liquid Eyeliner - Blackest Black

Eye Booster Waterproof Ultra-Fine Liquid Eyeliner - Blackest Black

Eye Booster Waterproof Ultra-Fine Liquid Eyeliner - Blackest Black is rated 4.6 out of 5 by 157.
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In stock
Product Benefits


    An ultra-fine, water-proof liquid eyeliner made with the blackest of black pigments to allow the ultimate flow-through application with our fast ink-dry finish.


    Enriched with a boosting complex to strengthen and condition for improved and healthy lashes.


    Waterproof Complex, Lash-Conditioning Serum, and Peptides

Hypoallergenic. Fragrance-Free. Paraben-Free. Gluten Free. Dermatologist Tested. Clinically Tested. Vegan. Cruelty Free.
Gently shake before use. Apply eyeliner at the base of lashes in a fine or bold line. Never apply eyeliner inside the lash line. Keep cap tightly closed to avoid formula from drying out. Wipe brush on tissue if eyeliner does not dispense.
Rated 5 out of 5 by from Liquid eyeliner Loved this eyeliner PERIODT...I’m allergic to many liquid eyeliners and this one did not smudge or burn my eyes!
Date published: 2019-11-05
Rated 3 out of 5 by from Not my favorite eyeliner, but it gets the job. Not the easiest to apply, doesnt get me a straight line but once you perfect it its perfect. Not the most long lasting! Would buy again if in a rush last minute type situation
Date published: 2020-10-20
Rated 5 out of 5 by from AMAZING This eyeliner is amazing, when I read some reviews on the website I changed my mind about purchasing it but then I bought it from drugstore and it's been a week I'm wearing it every single day for 10 hours and for 10 hours it's staying on perfectly, I LOVE THIS EYELINER
Date published: 2020-02-23
Rated 5 out of 5 by from This is my favorite liquid eyeliner of all time. You can find it at any drug store and it's usually around $12. One time on Prime day they were on sale for super cheap and I bought as many as I could. I've tried so many different high end brands, the most pricey probably being in the $30-40 range. I always go back to this. The brush tip glides easily over the lid, no tugging or scraping feelings. It's fast drying and lasts all day. If they ever stop making this I will be completely devastated
Date published: 2020-09-20
Rated 5 out of 5 by from I have been on the hunt for a more accessible and affordable liquid eyeliner and this is definitely the one for me! I love that it's not a regular felt tip but more like a bunch of precision hairs. The color is amazingly bold, doesn't run and even if my eyes are watery this liner stays!!! It has such an easy applicator, it makes the most precise clean lines! I just love it! The fact it's super affordable and I can get it pretty much anywhere is just the cheery on the liquid eyeliner cake lol
Date published: 2020-08-26
Rated 5 out of 5 by from This liner has a nice fine tip that is easy to apply. The liner is probably one of the darkest that I own. Currently it is my go to daily eyeliner. I have been using it daily for almost a month and a half and just now the tip is starting to fray and I think I will have to replace it soon. While it lasts well for me, I don't believe it is fully waterproof since I can remove it fairly easily with just water and a washcloth. Still will definitely repurchase and keep one in my collection.
Date published: 2019-09-20
Rated 2 out of 5 by from Disappointed This is not tear proof. It is too hard to draw a smooth line and the finish is too dramatic. I won't buy this again.
Date published: 2020-01-02
Rated 1 out of 5 by from Won’t get again. I bought this around Black Friday and I do not like it. I like the tip and that is it. It’s goes on very opaque and you have to go over it many times in order to get a good dark line. If you see in the photo the first line all the way to the left is one layer of the eyeliner (opaque and sad) the middle line is two layers and still not that good but better and the third line all the way to the right is three layers.
Date published: 2019-12-20
Rated 5 out of 5 by from This eyeliner is a perfect dupe for the Kat von d tattoo felt-tip liner. that liner was my go-to but since it is so expensive I started looking for a replacement when I stumbled across this one it is literally identical in every way except the price is so so much better. I can create the sharpest wing with the felt-tip and it does not budge an inch it stays on until you take it off it is an absolute staple I have gone through at least five or six of these at this point.
Date published: 2020-03-06
Rated 5 out of 5 by from I’m all about fine tip eyeliners! I usually use urban decay perversion but I went into ulta one day and one of the make up artist mentioned that she used physicians formula and the price was decent and it was also a good liner. So instead of getting my usual I purchased this liner and I was so blown away that It still had the same quality in a liner as urban decays! I will definitely buy again! And I always tell people what eyeliner I use !
Date published: 2020-04-16
Rated 5 out of 5 by from Can’t believe the price of this for such great packaging and application. The thin brush is made of tightly packed and well shaped bristles so you can line with a lot of control, precision, and have a lot of freedom with how thick or thin you want your liner to be. It doesn’t stay as long as the KVD liner but it’s a great dupe that applies similarly and doesn’t smudge, it just fades. I got this in black and brown and I loved both.
Date published: 2020-04-18
Rated 5 out of 5 by from This product is my absolute favorite eyeliner I’ve ever used. The thin brush tip makes application absolutely effortless. It is the blackest black eyeliner I’ve ever used. The waterproof formula last all day long. This is not recommended, but I have slept in it and had it looked great the next morning. Cult classic and I will be re-purchasing till the end of time. It beats every single high end liner I have ever used. 
Date published: 2019-10-29
Rated 1 out of 5 by from They changed the formula I’ve been using for years Bought a new one the other day because I ran out of all the backups (red/clear box), I bought a bunch when they were on sale. I went to get one and the packaging was different but the pen itself looked the same so I brought it home and realized it’s watery, sheer and streaky and not at all the jet black liner that once was. It also dried shiny not matte like before. I’m so sad because this was holy grail. Liner for me.
Date published: 2020-08-27
Rated 4 out of 5 by from i am a liquid eyeliner lover, and this stuff... is pretty good! it was the first liquid eyeliner i used that didnt smudged like crazy and had an easy and precise applicator. on the downside, after a month or so of use it starts to apply watery, and dries up too quick for my taste. it sometimes has a hard time applying on top of eyeshadow as well. all in all i still return to it if i run out of others bc it is dependable
Date published: 2020-08-01
Rated 5 out of 5 by from I thought their regular liquid eyeliner was great - but their waterproof liquid liner in ultra black is next level good. The packaging is super cute with water droplets (that look wildly realistic) and the cap stays super secure so your single eyeliner can easily last MONTHS. The brush tip makes winged liner a breeze and the formula is black enough that you’re not having to go over it more than once. HG eyeliner.
Date published: 2020-01-06
Rated 5 out of 5 by from Best eyeliner ever! It’s a brush style tip for those that care. It is super black, way blacker than the regular. It is really water proof and does stay put all day. It doesn’t run or smear anywhere. Love love love! Save your money buy this. My only complaint...I’m sure it’s a user fail but because it is a brush tip when u put the brush back in the cap u can mess up some of the brush needles so be careful.
Date published: 2020-02-01
Rated 5 out of 5 by from Absolutely my favorite eyes day eye liner. Its super easy to use. I used to use it for its lash boosting capabilities but have been using latisse now for a few years. I am not sure if it helped grow my lashes. This eyeliner is super affordable and is precise. I usually buy the regular version and not the waterproof. I do not like the additional work or possible pulling of my eye area with waterproof products
Date published: 2020-09-13
Rated 5 out of 5 by from This has been my longest used eyeliner to date, no matter what other one I try I always go back to this. The brush has the perfect flexibility to get the most precise wings, I’ve always been able to rely on this one. Once it dries there is no smudging or smearing this and it is a great black shade. It is shiny and not matte which I don’t usually prefer but with this it just looks beautiful!
Date published: 2019-11-02
Rated 5 out of 5 by from This is by far one of my favorite liquid eyeliners. Its super black and dries matte. I have watery eyes and this formula never runs or bleeds on me. Its super long lasting but easy to remove. It performs as well as high end liners. Definitely recommend!! Ive repurchased this countless times!
Date published: 2020-10-19
Rated 5 out of 5 by from If I could give this product 10 stars I would. It's the best eyeliner I have EVER used. Better than Kat Von D, Lancome, MAC and so many others that I have been through. I have watery eyes and my wings usually are gone by the end of the day or I have to touch up my eyeliner throughout the day. With this eyeliner, once I put my eyeliner on in the morning it stays in place until I wash it off.
Date published: 2020-01-29
Rated 5 out of 5 by from Doesn't have any aluminum ingredients! I just watched an aluminum documentary on YouTube (they blocked it on Amazon Prime Video for whatever reason) and now am on a mission to avoid as best I can for aluminum-based ingredients in my cosmetics and food. I have sensitive skin and am mildly allergic to tocopherol and it's not an ingredient. Wished the pen tip was a tad bit thicker but overall really happy with the product.
Date published: 2020-03-21
Rated 5 out of 5 by from This is one of the easiest liquid liners for me to use, and I struggle with eyeliner on my top lid. The tip is fine and makes smooth, easy strokes. It is super black and waterproof as it claims. It's a great drugstore option if you are looking for a waterproof liner that is easy to use. I'm still getting the hang of doing my liner and lashes but this now makes it 100x better!!
Date published: 2020-09-01
Rated 5 out of 5 by from This is the best eye liner in the drug store. Hands down. I was so happy when they released this because of how much I have used and repurchase the ultra black eye boosting serum version. This waterproof version is even better than the ultra black. I can’t get enough. I feel like I’ll never use another liner. I tell my friends and sister about this one. It’s really that good.
Date published: 2020-01-10
Rated 5 out of 5 by from This is my go-to eyeliner. It’s so inky black, and the tapered brush tip is absolutely perfect for precision wings! It does not budge throughout the day, it doesn’t smudge, smear, run, etc. But it comes off with an easy swipe of makeup remover. I’ve been buying this product for over 5+ years and I’ve tried TONS of designer and premium brands, but I always go back to this one
Date published: 2020-04-09
Rated 5 out of 5 by from This has become my recent favorite liner. It has a better staying power than the original liner. It’s more pigmented i think. I will definitely be buying this again! And would highly recommend. It has a brush tip instead of a felt tip which makes it easy to use. And you can get it at Walmart, Walgreens or cvs! Great drugstore liner with a great price point.
Date published: 2020-01-02
Rated 5 out of 5 by from Long lasting I bought this eyeliner first because it look really cool... never did I think I would still have it a year and a half later!!!! This is my everyday eyeliner and it seems that I have an endless tube of this stuff because not once has it quit on me or started lacking in the liquid. It is still going strong a year and a half later. I love this eyeliner!!
Date published: 2020-09-21
Rated 5 out of 5 by from This is an excellent liquid liner. The only thing I've found so far that compares to this is the Colourpop Liquid Liners. It's super black, seems to dry with a nice matte finish, and doesn't flake off, transfer, or crack and crumble as the day goes on. The brush is small and easy to use, but is also soft and flexible while also being precise. Great!
Date published: 2019-09-20
Rated 5 out of 5 by from I will say I love this, but you do need to make sure you use something to fan this so it dries quickly and doesn't smudge and mess up your eyeshadow. Once it is dry and I use my setting spray, it is fine. Definitely great for the beach or swimming. I know I can wear it without it dripping off and smudging while I swim or enjoy fun in the sun.
Date published: 2020-03-19
Rated 5 out of 5 by from I love this eyeliner so much! One of my friends recommended it to me, and I've bought it 2 or 3 times already. It's so easy to draw wings with it! And it's pretty long-lasting and doesn't smudge after a while. My only recommendation is that sometimes it can look kind of shiny or oily but that's probably just because I don't use an eye primer
Date published: 2020-08-01
Rated 5 out of 5 by from My favourite drugstore liner! Love the fun tip because I can choose either a thin or thick line depending on the event or my mood. Lasts all day! I even use the deep/dark brown for days when I want a less dramatic look. I love it because it’s not too brown where you can even notice but it’s not jet black which is exactly what I like.
Date published: 2020-02-21
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Why does it say not to apply inside the lash line?

Asked by: kimann115
This is a liquid eyeliner. You don't want to put it on the waterline. Its totally fine on the regular skin around the eye.
Answered by: MakeupMomma
Date published: 2020-08-21
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