Nothing. None of the experts who reviewed it raised a problem.
What the gurus are saying
The kitten-paw head gets into the inner corners and under-eye hollows, and several experts say it blends concealer without leaving streaks or creases. Pressing and stippling the concealer in, rather than dragging it, is the method they recommend for even coverage. A few voices suspect lookalike brushes exist, but at twelve dollars they say the price makes it easy to accept.
Synthesized from 6 expert reviews · most recent take October 2026
"I use the BK Beauty brushes daily, even when I'm not on camera. I have these in my hands. The A506 brush is absolutely fantastic. I use these all the time. [...] These are luxury brushes at mid-range prices and now you can get them even more affordably."
"It really is nice, it really does help you with diffusing concealer so it doesn't settle into fine lines, and it makes for a perfect even, very smooth base. That said, I do feel like this could be duped, but for twelve dollars that's fine."
"I love this little concealer brush. This is the Angie hot and flashy collab with BK Beauty. I think this is a genius brush. It's like a little dense paw that you can just really press and blend everything into. Because the other key with makeup, not just makeup for mature skin, but any makeup, is to not have any harsh lines."
"The brush I'm most proud of in this set is my A506 kitten paw concealer brush. This is amazing and it's a total gamechanger for women of any age. You don't have to be mature to use it, it works really fantastically on younger people as well. That is the standout brush in this kit."
Sponsored
All 19 takes from HotandFlashy
Best Deals To Scoop TODAY | Ulta 21 Days of Beauty 2026
"What makes this brush so special is that the fibers are super soft, so they never tug on your skin, but they're also in this little kitten paw shape that just helps you to get right into the inner corner where you need to concentrate most of that concealer. It gives you the most seamless, the most beautiful blend of your concealer that you've ever had."
OVER 50? 6 Makeup Tips For Smoother Looking Skin!
"This is my concealer brush, it's my A506 brush with BK Beauty. And this is very similar to their foundation brush. I actually modeled it after that one. Using a blending sponge, it just removed too much of the concealer and I didn't get enough coverage. Once I created this brush, oh my gosh, it really changed my concealer game. You press it and stipple it rather than dragging. So basically, I start patting it into the concealer, working it into the brush."
Celebrity Makeup Artist Nikki LaRose Does My Wedding Makeup!
"I lost sleep over this brush because I'm like, I want to make a concealer brush but how am I going to go up against the A506. It's a viral brush, right. So I came up with the N16. It's very different, you know, it's not as dense. In my opinion, these are both necessity brushes, especially for the way that I like to do makeup and the way I like to do makeup on my clients. These brushes are multitasking, they're amazing."
35 Gift Ideas for HER! Awesome Things She'll LOVE!
"My a506 kitten paw concealer brush is the one that you see all over TikTok and Instagram where people are using it and then being like, 'Oh my God, my concealer went on amazingly.' It spreads like butter, it's flawless. I had never been able to get my concealer to go on well with my finger or with a beauty blender or with any other brush, and then this has really just completely changed my concealer game. It is smooth, it is beautiful, it is crease-free every time because of this brush."
"You can use my 10% off code angie1 over at BK Beauty to grab that one. That is my kitten paw concealer brush. It is so soft and so lovely and it works great with the SE concealer, my Lancome concealer, just about any concealer. It's really just like a combination of the softness and the fluffiness of this brush that just lays down concealer so seamlessly, so smoothly. It never leaves any streak marks, it never leaves it patchy or weird looking."
The NEW Product YOU Asked For! + Anniversary Sale!
"If you have never put on your under eye concealer and liked the way it looked, whether you use your finger or a sponge or some other brush, this is the brush to try. I had tried all the brushes out there, used my finger, used a sponge, until this. Now this is the only thing I use and I love it so much. It really does make my concealer go on so perfectly. It fits so perfectly right into that corner of my eye. It's just an amazing brush."
FAVES + Fails! Best Summer Sales, Makeup, Skincare & Home! July 2023
"The number one brush that I would recommend is my A506, this is my concealer brush. I developed this to be a mini version of the BK-101, which is another one of my all-time favorite brushes, and it was the exact shape of that that I wanted to translate into a mini one that would fit perfectly right into the inner corner of the eye. So this fits perfectly and it's so soft. There's never a brush mark, never a streak."
BIGGEST Holiday Gift Guide EVER + Early Black Friday Deals! 2023
"The a506 concealer brush is like a mini cat's paw, the perfect shape to get right into the inner eye area. It makes it so easy to spread just the right amount of concealer, doesn't pick up any product, and lays it down without any marks, so you get nice full coverage with less product. It [...] can be bought separately and makes a great stocking stuffer."
BEST DEALS In BEAUTY, CLOTHES, SUPPLEMENTS, HOME | Prime Day 2025
"I designed this specifically for the needs of more mature women who need to put on their concealer and have it not look heavy and cakey, but be so gentle on your skin. It literally is like putting on your concealer with the paw of a little kitten. It has earned its name [...] and gone viral on social media, and you do not have to be a more mature woman to love it. Everyone loves it from young people to older people."
Black Friday BEST Deals on DEVICES, SKINCARE, BEAUTY & More!
"My Kitten Paw A506 concealer brush went viral this past year and it really does live up to the hype, [...] it just helps you get your concealer on completely flawlessly every time, so it makes a great stocking stuffer or gift."
Amazon Prime BIG DEAL DAYS Starts TODAY! My Top Pics in BEAUTY, FASHION, HOME
"This brush completely changed my concealer game. I used to use my finger to put on my concealer and was never 100% happy with how it looked. When I was offered the opportunity to create my own brush set by BK Beauty I jumped at it, and this is one of the seven brushes I created. It really solved the problem for me and now my concealer goes on perfectly every time."
60 BEST Amazon Prime Day DEALS 2024! Beauty, Fashion, Home, Electronics!
"This was just named the best concealer brush on Amazon, and my brush isn't that amazing so I can attest to it, it is fantastic. It really changed my concealer game for the better. I can put on my concealer with no problems now, it's so soft, it's so luxurious, and if you have ever been on the fence about it and wanted to try it, now is the time to do it."
BEST DEALS In BEAUTY, FASHION, SUPPLEMENTS, HOME | Prime Day 2026
"The BK Beauty A506 kitten paw concealer brush, which I used today to put on my concealer, is 40% off this time. [...] If you haven't gotten one of these, you should. Everyone's duping it now, but this is the original. This is the best one. It's so soft."
Nordstrom Anniversary Sale 2026 | What's Actually GOOD In BEAUTY, FASHION, ACCESSORIES + HOME!
"The brush I'm most proud of in this set is my A506 kitten paw concealer brush. This is amazing and it's a total gamechanger for women of any age. You don't have to be mature to use it, it works really fantastically on younger people as well. That is the standout brush in this kit."
BEST Black Friday Beauty Deals! NIRA, NuFace, Omnilux!
"This is my A506 brush. It is amazing. It fits right in the little nook and cranny of your inner eye there, and it puts on your under eye concealer so perfectly. You won't even believe it. I couldn't even believe it. Like, you know, you try to design something, and you hope it comes out good, and then I got the prototype on this, and I was like, oh my god, this is so so good."
22 BEST Life Changing Products of 2022 Style, Home, Body
"While this is a smaller brush I kept it light and fluffy and I think the light and fluffiness of these brushes is really what makes them each so special is that they don't cake on your makeup and they don't remove your makeup either they just lay it down in a perfect perfect way."
Faves + Fails! Loads of Great Finds!! March 2022
"I use my BK x Angie Hot and Flashy A506 brush as my under-eye concealer brush. This is really like one of my hands down all-time favorite brushes. Sure I created it, but I felt like there was such a need for a concealer brush that just applied your concealer so perfectly."
Faves + Fails! Brushes, Sales, New Skincare & Makeup!
"This A506 cat's paw brush [...] has been a game-changing concealer brush. It applies your concealer perfectly every single time and it's so versatile. [...] You can pat on your concealer then flip it over and use the long hairs to feather it out under your eyes. You can use that long end also to contour the bridge of your nose if you want to add lighter concealer there. You can also use the cat's paw part to conceal a blemish. [...] It's just such a multi-tasker and such a great brush."
Spring Makeup Tutorial + Brush SINGLES Are Here!
"The curved side works great for patting and blending. One viewer said this feels like a cat's paw applying your concealer, and [...] I love that image. I use [...] a stippling padding motion rather than a dragging motion because you don't want to drag the skin under your eye, and the most beautiful, seamless, wrinkle-free application is just to pat it. This brush individually is 24."
"I'm going to pick up the concealer on my BK Beauty Angie Hot and Flashy brush. This is the best concealer brush, if you do not have this, take this as a sign during Prime Day to pick it up."
Sponsored
All 8 takes from Allie Glines
What I'd Actually Buy YOU at ULTA's 21 Days of Beauty
"My friend Lisa, who owns BK Beauty, is now online at Ulta, which is so exciting. I am just so proud of her. And their iconic A506 Cat's Paw Concealer Brush. [...] This is the best concealer brush. You guys know how much I love this and how much I use it. If you have not tried this yet, it would be a great time to try it. [...] The way that this blends out your concealer, it just curves around all the hard-to-reach areas. It perfectly buffs concealer up under the eyes. Phenomenal."
I Want to Look Like This Everyday: Makeup Tutorial
"A506 brush, this is such a gorgeous concealer brush."
The Makeup I'm Thankful For This Year 🥹
"I'm going to use this with the A506 brush from BK Beauty. This is the Angie hot and flashy collab that they did together, her and Lisa, and it's amazing. Angie is one of the sweet and amazing women in that group that I met in April. This brush has basically broken the Internet. It's amazing and it's so fun to see how successful this brush has been, so well-deserved. It's like one of the best out there. If you haven't tried this, this would be a great present to yourself."
10 Products That Will Transform Your Makeup! 😍
"The A506 is the most perfect concealer brush ever, ever, ever. It has a very similar shape to the 109 in that like half dome curvature situation. It is so perfect to buff and blend out concealer to the point where you get precision, you get blend. It is divine. I love this one."
UNEDITED Makeup Tutorial from Start to Finish
"The BK Beauty A506 Cat's Paw Concealer Brush has really gone viral, but like for good reason honestly. It's such a nice brush. Look how nicely it just buffs everything away."
The Tutorial You BEGGED Me For!! (My TikTok Live Makeup)
"I took the Angie hot and flashy A506 brush from BK Beauty, literally the most fabulous concealer brush ever, and I just blended it out with this kind of sculpt underneath the cheeks as well. This concealer brush is so amazing. This is actually one of the products that went on flash sale quite a few times during our 8 hours, which was fun."
Answering YOUR Makeup Questions
"I love this BK Beauty A506 Cat's Paw Concealer Brush. You're going to take your concealer, tap it out on the back of your hand, and then you're going to apply it below where you have fine lines so that most of the product goes about here, and then you can always buff up the excess into the under eye area a little bit higher but there's going to be less on the brush already."
The BEST BEAUTY Picks for Amazon Prime Day!!
"I'm going to pick up the concealer on my BK Beauty Angie Hot and Flashy brush. This is the best concealer brush, if you do not have this, take this as a sign during Prime Day to pick it up."
"This brush however, this concealer brush is unique. I think it's their bestseller. I mean you can't go wrong with any of their makeup brushes. I have many of them and they're all excellent. It's got this kitten paw shape to it so it really allows you to very gently pat in and blend in concealer minimizing any creasing and it gets in the hollow of your eye really easily. And it's super soft so it's not irritating along your eyelid."
Sponsored
All 3 takes from Dr Dray
AUGUST 2023 FAVORITES | SKINCARE & BEAUTY
"This is unlike any brush that I've ever encountered. It's like this little kitten paw. It's the cutest description. The head works so well for applying under eye concealer because it's the perfect shape, especially if you have prominent under eye hollows. It's also really good for getting right up in here and for just patting the concealer on. This works really well for applying under eye concealer without it going on streaky. It really blends it in really nicely."
The *Ultimate* 2023 Holiday Gift Guide 👗🎁 Dermatologist @DrDrayzday
"This brush however, this concealer brush is unique. I think it's their bestseller. I mean you can't go wrong with any of their makeup brushes. I have many of them and they're all excellent. It's got this kitten paw shape to it so it really allows you to very gently pat in and blend in concealer minimizing any creasing and it gets in the hollow of your eye really easily. And it's super soft so it's not irritating along your eyelid."
*Vlog* TINTED MOISTURIZER & PAULA'S SKIN CARE BOOK @DrDrayzday
"Recently I started using this Angie Hot and Flashy brush from BK Beauty brushes, this was gifted to me at the RewardStyle conference, but I really like the head of this brush."
What the evidence says.
Independent of what the gurus think, this is what
the published research supports about the main active ingredients here.
Frequently asked.
What is BK Beauty A506 Cat's Paw Concealer Brush?
A soft makeup brush with a small, dense, kitten-paw-shaped head, designed to pat and blend concealer under the eyes and into hard-to-reach areas.
Is BK Beauty A506 Cat's Paw Concealer Brush worth it?
Yes. All 6 gurus who reviewed it give it their stamp of approval, for a Guru Score of 85%.
What is BK Beauty A506 Cat's Paw Concealer Brush's Guru Score?
BK Beauty A506 Cat's Paw Concealer Brush holds a Guru Score of 85%. That is our read on how warmly the experts talk about it, based on the verdicts of 6 expert reviewers we have collected. It is also Guru Certified, our mark for products that hold broad approval across many expert reviewers.
Cheaper alternatives the gurus rate.
Lower-priced products in the same category that the experts still rate highly.
