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

  • Based on 14,791 reviews
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Availability: 16 left in stock
Fulfilled by HHG INC

Arrives Tuesday, Jul 7
Order within 2 hours and 43 minutes
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Color: Blackest Black


Size: 0.03 Fl Oz (Pack of 1)


Features

  • High-tech, waterproof formula enhances the appearance of lashes while providing the definition of liquid eyeliner.
  • Lash-boosting complex applied at the base of lashes is most effective in improving lash appearance.
  • Key ingredients: waterproof complex, Lash-conditioning serum, peptides
  • Skin Type: Combination

Description

What it is: 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. Why It's Good for you: enriched with a boosting complex to strengthen and condition for improved and healthy lashes. Key ingredients: waterproof complex lash-conditioning serum peptides

Product Dimensions ‏ : ‎ 0.47 x 1.88 x 5.63 inches; 0.59 ounces


Item model number ‏ : ‎ PF10970


UPC ‏ :


Manufacturer ‏ : ‎ Physicians Formula


Best Sellers Rank: #3,355 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care) #32 in Eye Liners


#32 in Eye Liners:


Customer Reviews: 4.4 4.4 out of 5 stars (15,200)


Brand Name: Physicians Formula


Number of Items: 1


Age Range Description: Adult


Package Type Name: Tube


Manufacturer: Physicians Formula


UPC: 044386109704


Global Trade Identification Number: 04


Manufacturer Part Number: PF10970


Model Number: PF10970


Item Weight: 0.04 Pounds


Item Dimensions: 0.47 x 1.88 x 5.63 inches


Item Form: Gel


Product Benefits: Waterproof


Eyelid Color Type: Eye Liner


Additional Features: Hypoallergenic, Not Tested On Animals


Skin Type: Combination


Coverage: Full


Skin Tone: All


Color: Blackest Black


Finish Type: Natural


Material Features: Fragrance Free, Gluten Free, Organic, Vegan


Material Type Free: Paraben Free


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Jul 7

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Decently long-lasting & water-resistant
Color: Ultra Black2 Size: 1 Count (Pack of 1)
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. ... show more
Reviewed in the United States on November 25, 2024 by Emma Maki

  • Great colour great performance great wearability easy to remove. .
Color: Deep Brown Size: 1 Count (0.016 Fl Oz, Pack of 1)
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. ... show more
Reviewed in the United States on January 1, 2026 by Majid B.

  • My new Holy Grail.!!!
Color: Deep Brown Size: 1 Count (0.016 Fl Oz, Pack of 1)
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. ... show more
Reviewed in the United States on August 14, 2020 by RP

  • A Superior Drugstore Liner...Usually
Color: 1-Ultra Black Size: 1 Count (0.016 Fl Oz, Pack of 1)
***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. ... show more
Reviewed in the United States on August 26, 2015 by Melody

  • This is a great eyeliner
Color: Deep Brown Size: 1 Count (0.016 Fl Oz, Pack of 1)
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.
Reviewed in the United States on April 26, 2026 by Linda

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