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Genteel Lancing Device - Pain-Free Vacuum Lancing Device for Diabetes Testing - Blood Sugar, Glucose, Ketone, and DNA Home Tests (Butterfly Blue)

  • Based on 347 reviews
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Availability: In Stock.
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Arrives Monday, Jul 13
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Features

  • Universal Compatibility - Engineered to work perfectly with any meter and test strips available.
  • Vacuum Technology - The Genteel lancing device is the world's only lancing device that uses vacuum technology to draw blood. No more sensitivity and squeezing. Save yourself from pain and get blood from anywhere on your body, making frequent blood sugar monitoring and glucose testing a more comfortable part of your daily routine.
  • Avoid Pain Nerves Genteel is designed with ultra-precise depth control using 6 levels of patented Contact Tips. Get the consistent amount of blood in seconds while avoiding pain nerves and giving a near painless experience. Perfect for blood testing of all kinds.
  • Give Fingers a Break Allows your fingers to have a break and test on the thenar area of your palm, which matches the fingers' blood sugar levels, in both steady and dynamic blood flow states for real-time readings.
  • No Custom Lancets Required - We recommend our Butterfly Touch Lancets. You can also use widely available square-shaft lancets and any test strips or meter of your choice with our lancing device! Please note: meter and test strips not included. This product includes: lancing device, 6 contact tips, 10 butterfly touch lancets, contact tips, and instructions.
  • Genteel Mission - We want what's best for you. We offer the most comfortable lancing experience required for blood testing by providing relief from discomfort and fear.

Package Dimensions ‏ : ‎ 7.05 x 5.12 x 2.05 inches; 4.16 ounces


Date First Available ‏ : ‎ July 16, 2025


Manufacturer ‏ : ‎ Genteel


Best Sellers Rank: #193,846 in Health & Household (See Top 100 in Health & Household) #138 in Blood Lancets (Health & Household)


#138 in Blood Lancets (Health & Household):


Customer Reviews: 4.3 4.3 out of 5 stars (347)


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If you place your order now, the estimated arrival date for this product is: Monday, Jul 13

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Top Amazon Reviews


  • This is a God send for my dog and me!
I am so glad I took the chance and bought this! I was not sure if it would work the same on animals, since it was designed for humans, but it most definitely appears to allow pain-free testing on my dog. I have a diabetic, 11 pound Maltese dog that was fighting me tooth and nail when it came time to do testing. Just like in humans, it is vital to test a dog's fasting blood sugar before giving insulin and I also conduct weekly or bi-weekly blood glucose curves on him to determine if he is getting the appropriate insulin dose and that requires testing every 2 hours for a 12-24 hour period. I felt awful every single time I would test him because I knew I was hurting him. As soon as I would take out the meter or lancet, he would start planning his getaway and would growl and cry and fight me all the way. I was frustrated and feeling defeated every day. Thankfully, I heard about the Genteel through an online support group for diabetic dogs, and after watching a couple videos of how it works, I decided to give it a try. If it would allow me to test my dog’s blood sugar without causing him pain, then it would be worth every penny. Well, I am happy to report that since the day I received my Genteel, my dog has not cried or growled at me one single time. He is now oblivious to the fact that he is even being tested and has even been successfully tested several times in his sleep, without it even waking him. For those interested in using this on your dog, I will provide some pointers and advice. I cannot tell you how wonderful it feels to be able to test my pup without feeling like I am hurting him. I know several other canine moms that use the Genteel on their pup and they are also just as pleased with the Genteel. How I use Genteel to test my dog: I use the base of my dog’s tail to test because he does not feel it at all and I can actually test him while he sleeps or just rests and he has no idea I am even doing it. I get everything together ahead of time and sit him next to me on the couch and give him either a chew toy to play with or just rub his back. Meanwhile, I am prepping and testing and he is none the wiser because he cannot see what I’m doing. I shave a small spot at the base of his tail, (as indicated in the photo) then I warm the area by placing a sock filled with rice that has been microwaved for 25-30 seconds and applied to his tail for 15-20 seconds to warm the area and make it easier to get blood. I had just tested when I took the photo, that is why his skin is dark pink, because it is still warm and he has sensitive skin. Once the skin is warmed, I put a thin layer of Vaseline on the area to keep the blood from spreading into any remaining fur, then I place the Genteel on the base of the tail, holding in place for 3-5 seconds, then I depress the button and continue to hold the Genteel in place for an additional 3-5 seconds so the blood forms a nice size drop, then I remove my finger from the button, and then I remove the Genteel from the base of his tail. I am then left with a nice blood drop for testing. Tips: Make sure your finger is covering the hole in the button as this is what creates the suction that pulls the blood up to the surface. Do not remove your finger off the hole until after you have depressed the button and waited 3-5 seconds for the blood drop to form. Once you release your finger from the hole, the back of the plunger will come out even further so make sure there is nothing blocking it or you might mess up your perfect blood drop. Carefully remove the Genteel once you release your finger from the hole on the button. Animal skin is way thicker than human’s skin, so if you are using a thick skin area like the base of the tail, make sure you are using a lower gauge lancet, such as a 21g or 23g, or you will have great difficulty getting blood, no matter what type of lancing device you use. When testing at the base of the tail, the purple tip works best for me and for several friends of mine who have diabetic dogs and use the Genteel to test the base of the tail. When testing in other areas, a different color may work but most find the purple tip is best for testing this area. Make sure the area you are going to test is shaved well, otherwise the blood will disburse into the surrounding fur. Warming the test area for 15-30 seconds with a warmed rice sock or heating pad can make a huge difference in the amount of blood that forms in the drop. This is true whether using a conventional lancing device, holding the lancet in your fingers, or using the Genteel. The warmth allows the blood to flow more freely and warms the capillaries so they release blood more easily. Applying a very thin layer of Vaseline to the test site after you warm it and before you test, can help the blood form into a drop, instead of disbursing into the fur, when the area is not shaved completely. If you are testing the base of the tail, try to keep your dog from looking back to see what you’re doing, especially if they are accustomed to feeling pain from testing before you purchased the Genteel. Even though the Genteel will create a more pain-free testing experience, if the pup sees what you are going, we might react and try to pull away because he associates the process with previous pain. Since I’ve started using the Genteel, I have tested my dog several times while he was asleep and he has had no idea I was even testing him. For me, that is a testimony to the fact that he is not experiencing any pain with the Genteel. I am so glad I gave the Genteel a try, I hated seeing the hurt and frustration in my pups eyes as he looked at me as if to say, “Mommy, why are you hurting me every day?” Before using Genteel, he would wrap his arms around my neck and try to get away as I was testing him, fighting me the whole way and crying and growling. I felt like the biggest monster but I had to do it because I cannot give insulin blindly to my dog and just hope his blood sugar is high enough for his insulin dose. As a responsible pet parent, I realize the importance of testing his fasting blood glucose every time, before I give his next insulin dose. This way, if his numbers are low, I can allow the food more time to work and raise his blood glucose to a safe level, before giving his next shot. I found out about the Genteel through a wonderful support group on Facebook called Canine Diabetes Support and Information. If you are the parent of a diabetic dog, please feel free to join us. We are a group of 6k+ who are all going through the same struggles…trying to do the best thing and provide the best care for our diabetic pups and we support each other immensely. ... show more
Reviewed in the United States on December 12, 2016 by AmazonCustomer

  • Yes, it's expensive. No more bruises, no more pain.
TL;DR - buy the Genteel with Tiniboy 36g lancets (on Amazon only), take your time finding the right setup and you will have no pain. Genteel just released their own lancets called Butterfly Touch which are supposed to act just like the Tiniboy. I ordered some and they are relabeled regular 28g lancets from China! Buy the Tiniboy patented lancets. Full review: I have been bedridden for four years with severe pain thanks to a spinal injury and 8 surgeries. Over a year ago, I started having insatiable thirst. I finally got a doctor after my last doc retired and my fasting glucose came back at 157. I have a long family history of serious diabetes. Now, I am not afraid of needles. I've had over 30 procedures and countless surgeries. I can no longer get regular IVs because all my veins have blown up, so I get PICC lines. See? Not afraid of needles at all. Spinal injury means severe nerve pain in both legs and arms. Even the gentlest human touch sends me over the edge. I'm on Gralise and I have a spinal cord stimulator implanted, but neither takes away the hypersensitivity. I had to start testing my blood glucose a week ago. After the first two attempts (my blood over-clots) with 4-5 lancings each time, I was frustrated and in pain. I was using the TrueDraw lancing device which came with my TrueTrack meter. I tried alternate sites and nothing improved. A little googling uncovered many devices, all with the same design. My husband is an engineer and product designer, we are both gearheads and car enthusiasts. Imagine my delight when I found the Genteel- a product I could appreciate with actual features, not just the same spring-loaded stabbing of every other device. I overnighted it using Amazon Prime because the pain was that bad for me. I opened it immediately. The marketing is excellent, with lots of included materials and a slew of YouTube videos so even a monkey could use it. It is NOT complicated, but I can understand a learning curve for someone who has suffered from testing for decades given the lack of device variability on the market. I had already watched the videos included in the email I got from the inventor before the package arrived. I research everything to the enth degree, so I had read dozens of reviews and watched lots of videos about it. The main functional difference is suction. For someone like me, who clots too fast, this is an excellent feature. The Genteel is also easier to hold than a standard lancing device. The case is excellent. I've looked at Myabetic, Sugar Medical (my favorite is their new design universal) and other designer cases but since I don't yet know what my medication will be, I'm holding off. Regardless, the Genteel case is great. The best feature is the Velcro attachment for your meter so it can be easily removed for testing without having to reinstall it into elastic or a pouch. *Update* I'm now taking insulin and switching to a custom case to fit everything as this case isn't big enough for vials. It works fine for any meter and test strips (you will have to stretch the elastic to fit the strip vial) and lancing device but I want just one bag on the go. This will stay on my night stand and I'll be getting a second Genteel so I don't have to pack more supplies when I leave the house. A few pieces of advice- LANCETS MATTER! I've tried three different lancets so far. *Update* Genteel has just released their own lancets called Butterfly Touch, available through their website mygenteel. They aren't cheap but I found out they are designed similarly to the Tiniboy and given the huge improvement with the Tiniboy over all other lancets, I ordered some to try in hopes of an even better experience. *edit* They arrived and I am not happy. They are generic 28g lancets from china with a Genteel sticker slapped on the box. Buy the Tiniboy! The angle may be slightly different but they are just as painful as every other lancet except Tiniboy. The True Lancets (28g) were the most painful. The Bayer Microlet lancet (featuring a silicone coating) were not any better. After some research, there is nothing Micro about them- they are supposedly 28ga. The Droplet lancets included with my Genteel were 30ga and are far less painful, but they are not sold on Amazon. I did some digging and even though the manufacturer has printed the Tiniboy is incompatible, it turns out they are with some experimentation of tips. These are 36ga and the smallest on the market. The average consumer won't like the fact it must be finessed due to the shallow depth of the lancet, but I'll spend hours poking myself if it saves me years of unnecessary pain. Tiniboy lancets are only sold on Amazon. I ordered four boxes of 100 because every other tiny lancet company has gone belly up and I don't want to run out. The Genteel Butterfly Touch lancets are basic 28g lancets with a Genteel sticker slapped on the box. They may have a different angled cut but they are equally as painful as the Microlet. Learn from my wasted $9 (on sale, too!) and buy the Tiniboy lancets. Alternate site vs. finger testing PAIN scale: Keep in mind I suffer from severe neuropathy in both arms and legs. Here's my take on pain. I felt NOTHING on my inside forearm, both palm sites, and above my knee (numbness helps from spinal cord damage.) Fingers, I did. Don't let that deter you, though, because a smaller lancet meant far less pain. Let me compare: My regular lancing device with the 28ga True lancets was a 7/10 on lancing pain for my fingers. The Genteel with Microlet 28ga on fingers was 4.5/10 The Genteel with Genteel Butterfly Touch lancets on fingers is 4.5/10 The Genteel with Droplet 30ga on fingers was 3/10 The Genteel with Tiniboy 36g lancet on fingers is 1.5/10 and sometimes .5/10 IT TAKES A LITTLE TIME, but once you get the right combination of lancet and depth, you will be happy. Yes, they even have a money-back guarantee. Please, please be patient. Don't expect to open it, throw it in your bag, and leave the house. Set aside a quiet hour so you can read the documentation and try various setups. Also be sure your meter and your doctor are okay with alternate site testing. Sometimes fingers are required. I did a little experimenting over both arms and legs to find the most accurate spot. Yes, I used about 50 test strips, but I want to know my blood glucose level accurately! Bottom line? I love it. It's expensive, yes. But if I could rid my other pain using money, I would. This truly is an opportunity to pay to rid of pain. Every diabetic should have one. Go watch videos of toddlers using it on themselves and not crying. Diabetes isn't fair for kids, they shouldn't have to endure pain like that. Every meter manufacturer should include the Genteel. Every store should carry the Genteel. Getting their production up will lower the price eventually. I loved it so much, I bought one for one of my dearest friends who has suffered from diabetes for over 30 years. Guess what? No pain for him either. His fingers are always bruised up, just like my arm after just ONE day of testing. Buy it. Don't like it? You may need some tips or tricks, or worst case scenario, use the money-back guarantee. My dog ate one of my nozzles and the entire card of tips. Genteel sells replacement packs of nozzles for $15, and you can also buy additional tip cards with either ALL one color or the multi-size card for $15 from mygenteel. They frequently have discounts and coupons on their website, definitely compare pricing before you buy. They also offer a $10 coupon when you sign up for their mailing list right now in addition to having a huge sale on their devices. They do offer a metal body Genteel in Platinum or Gold, but these are expensive enough to warrant buying two plastic ones unless you've got the budget or just want to match your jewelry. If you buy directly from them, don't miss out on the survey at the end of your purchase, as they will donate $5 to one of three charities of your choice related to diabetes! It's a great chance to give a little something forward. ... show more
Reviewed in the United States on January 24, 2017 by Possum Queen

  • You’re gonna love this! Worth every penny and more.
My Yorkie has been sick with Cushings for a few years, then got ketoacidosis and came close to death. Diabetes. Glucose tests to do my best to keep her alive. Pricking the ears of a dog that has never tolerated her body being messed with at all. OMG. This chore was going to be a nightmare. Found this little darlin’. Gave me hope. Practiced on my own finger for a week and I was amazed as I have a fear of needles and HATE having my fingers pricked. No pain at all with this baby. OMG. Maybe I’ll be able to do this?? I test her blood 5 times a day and she doesn’t mind at all. The clear rubber piece is the one that works well for her. First time every time. The Genteel is simply wonderful. My vet claims that my using this Genteel and making it zero torture for her is what is keeping her alive. He normally doesn’t require checking glucose as often as I do, but since I can and she doesn’t mind, I’m able to know what is going on with her and act accordingly. My vet is sold on these and now suggests them to other patients. The vet tech that does the pricks with a needle was amazed at how much better this works as it results in the perfect amount of blood without having to hurt the dog and asked me to always bring it with me when she does have to come in for checks so that she can use it and claims she looks forward to it because it is actually fun to use as opposed to muzzling and stabbing with a needle or lancet that causes them pain. If your dog has diabetes, I strongly recommend trying this little darlin’. You are going to be amazed at the difference it makes. Before I bought it, I was horrified at the price, but after using it, I would gladly play twice as much to have it. Two members of my family have diabetes as well and I have bought them both one of these. They are stunned that they no longer have to feel the prick to check their glucose and thank me profusely for giving them these. They often skipped their checks because their fingers were sore and didn’t like doing it. Now they never have sore fingers and they actually look forward to the check as opposed to dreading it. ... show more
Reviewed in the United States on June 15, 2021 by Kindle Customer

  • Amazing Product
Color: Butterfly Blue
This is an amazing product. Easy to use, no pain and I love that the lancet can be used in multiple places, not just finger tips.
Reviewed in the United States on May 16, 2026 by Susan M.

  • Mostly Painless
I like this contraption. There is definitely a learning curve. The included instructions are very sparse and I found that watching YouTube videos were best to learn how to hold and operate it. It also included different rubber tips depending on the area you will be using so there is another learning curve with that aspect because you'll have to try them out to see which tip works best for the area you will be using. I use this on my palm with the yellow tip. I haven't quite been able to draw enough blood for my Libre 3 reader, but it supplies enough blood for my older Libre reader. I will say that this device is "mostly" painless. Using the wrong tip can potentially be very painful. For the most part, though, if done correctly, is pretty painless. I'd like to add that I am very adverse to needles and waited until I absolutely had to start using needles. This device is a much better alternative than any traditional lance. ... show more
Reviewed in the United States on February 9, 2024 by R. Adams

  • Great for Diabetic Animals
I just got this device today and immediately used it on my chihuahua recently diagnosed with diabetes. He’s been going through a lot dealing with this disease (recently hospitalized for diabetic shock and required lots of followup care) and taking a glucose reading with a lancet pen has only added to his stress. I found out about this device while combing through websites and blogs about diabetic dogs. It took a little trial and error on this first try attempting to extract blood from my dog’s ear, but it finally succeeded in doing what regular lancets and lots of squeezing could not do well. He only flinched from the sound, but I could tell he didn’t feel pain. He sat patiently while I got used to using it and seemed very relaxed afterwards. Normally, he’d run and hide. I wanted to leave this one bit of information just in case it might be useful to a dog or cat owner who would prefer lancing an ear over shaving their pets hind quarters. I found the yellow tip to be most effective for lancing the ear. That’s the second thickest tip in the kit. Personally, I feel this device is a little overpriced, but given what we’ve been dealing with and how many years I’ll be using this device (my dog only just turned 9 years), I chose to buy it anyway. For those who are expecting a battery powered device, it is strictly mechanical. There are no electronic components. The good news is it shouldn’t fail expect due to years and years of wear and tear. I’m happy to have found a painless solution for my poor dog so I can have a good read on his glucose levels throughout the day while not stressing him out any more than he already has been. UPDATE: I’ve been using this lancet for about a week now. I switched to the green tip after a couple days to get a better blood sample and that has been working well. My dog will not shy away from getting his BG testing now. I have found that if I’m not careful with the vacuum release, the blood drop can get sucked up and/or smeared, which means I have to lance my poor dog again. He handles that like a champ too. I use Aquaphor to aid in getting a good sample, but smearing can still happen if the vacuum release isn’t slow. All in all, I’m very happy with this purchase, but I still think it should be valued at $50 not $99. ... show more
Reviewed in the United States on May 13, 2020 by PG

  • We purchased this lancing device in October and now on ...
We purchased this lancing device in October and now on November 29, it is already broken. For the cost of this device, it should certainly last more than 60 days. The product did work exactly as describer. Blood sugar checks were completely painless and drama free. I have a very heartbroken 9 year old diabetic who now has to go back to checking with her old lancing device. ... show more
Reviewed in the United States on November 30, 2016 by Amy R

  • Completely painless, alternative testing spots. I am so happy that this is my first lancing device. Worth every penny
I have recently diagnosed with diabetes type 2. Searching Amazon for testing strips, I came upon this device. I read the reviews and watched the videos (Check out the Genteel instruction videos on you tube. They cover everything I refer to in my review) -Because of the tips, I found the perfect depth to draw blood from my fingers painlessly. I get sweaty and pull my finger away when blood is drawn from my finger tips, the thought of having to do this 3 -4 times a day scared me because I would end up skipping my BG monitoring. -Redraw: Poke your finger once and through out the day, place the device over the spot and the vacuum draws the blood without using the needle. This works for me 1/2 the time -Test your forearm, palm, leg or finger. The thickness of the tips make it so easy to avoid the nerves in these areas. -Safe and less painful for children and pets I know its expensive. But it is worth it. If it doesn't work for you, you can return it. Make sure to check out the instruction videos! ... show more
Reviewed in the United States on May 9, 2017 by TMDIVO

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