Unlock the Secrets of your Hair: Density & Circumference Explained

In this live‑recorded tutorial, licensed cosmetologist Tami Grgas shares her personal hair‑care journey—spanning bleaching, coloring mishaps, and damage—to illustrate why hair’s fundamental structure (density and strand thickness) cannot be altered by products. She teaches viewers how to assess their own hair density using a ponytail‑circumference method or scalp‑visibility test, categorizing density as low, medium, or high. She then explains how to gauge strand circumference by comparing a hair strand to a piece of thread or by tactile feeling, labeling strands as fine, medium, or coarse. Tami emphasizes that understanding these immutable characteristics is essential for selecting effective products, avoiding misleading “volume‑adding” claims, and tailoring styling techniques. She critiques products that claim to swell or coat hair, noting the potential for damage, and encourages viewers to use her knowledge to make informed purchasing decisions. Finally, she directs the audience to a Rodan + Fields quiz and sample program on her website, promising weekly future videos on hair and skin care to help viewers save money and reduce waste.
Chapters
I can edit stuff up. Yes. Okay. So right now I'm doing a recording and live at the same time. Wish me luck. Hello, Tami Grgas here, and I am going to be unlocking the secrets of your hair for you. I want to help you to understand your hair so that you can make informed decisions about the products you're using on your hair, which is what I do because I am a licensed cosmetologist and I've been doing hair for many, many years now, and I want to share my vast knowledge base with you. Okay, so, uh, okay, ignore the "Join me in my free workshop." I don't know why that just popped up there. I will have to figure out how to tell that to stop it because my workshop's not happening right now. So I have to tell you I am amazed, like utterly amazed at how good my hair can look on a daily basis now. I, I actually love my hair. And I have to tell you, it wasn't always like this. I have tried so many colors. Perfect. Perms, Brazilian blowouts. You know, I've been red, I've been brunette, I've been blonde, I've been every color under the rainbow, including pink and blue. I've been everything. I have bleached my hair, I've colored my hair, I've done all of these things trying to make it do what I wanted it to do. And in that process, I've fried the living daylights out of my hair. Yeah. There was one time I— my hair accidentally turned green, and through that we couldn't get rid of the green. Nothing we did would cancel out the green, and eventually— the reason it was green is because I had gone blonde. Didn't really like full head blonde, um, although it wasn't intentionally full head. It was pulled through one of those torturous streaking caps and bleached out, and they pulled through too much because they didn't understand how fine my hair was. And so anyways, tried to color it back and it turned green. Green, green, green. So eventually my friend Todd, who I worked with He won a color trip and went to New York, I believe. But, you know, this is back in the 1900s, okay? He took clippings of my hair with him and took pictures and told the ladies, these professionals with Clairol, what was going on. And it was then that we learned, because we were put in red, red, red, red, red, red. Mm-hmm. Red is the opposite on the color wheel. We thought, okay, that'll kill the green, but the green kept coming back. So we kept putting red on, red on, red on. It wasn't staying. Red doesn't like to stay. If you add violet to your red, it's going to lock it in. So I'm going down a rabbit hole here, and I'm sorry, but this was one of my many experiences of doing crazy things to my hair. Because after that, we finally— I was pretty purple for a while. but it killed the green. The green never came back until I decided I needed a perm. Conveniently forgot about all that bleaching and all that coloring and all that crap and fried the living daylights out of my hair. So I've been short, I've been long, I've been everywhere in between, and I— it took me a long time to figure out things about my hair. Yeah. And that's why I want to help you to figure out things about your hair, because I have learned to understand my hair and its limitations. I have learned that I cannot change the structure of my hair. I can't. Nobody can. And I have learned— Mm-hmm. That I can use products and science to manipulate my hair texture and what it's doing. Texture refers to, um, wave and curl and stuff like that, but we'll get into that another time. Right now I'm wanting to tell you about your hair structure. And this is what cannot be changed. Okay, it just can't. I mean, they have products out there that are like, "Ooh, we'll add volume, we'll do this, we'll do that." I'm sorry guys, it's a fantasy, it really is. So first I wanna tell you about density. Okay, first of all, what is density? Density refers to how many hairs per square inch on your head. All right? I don't expect you to count them. That's, you know, God knows how many hairs per square inch, but we don't have to. There are a few ways, a couple ways that I know of to determine this, okay? If you have long hair, you can put it all in a ponytail and use like a flexible measuring tape. Once you get it all up in a high ponytail, you're going to take that tape and you're going to measure around the base of your ponytail, but you're not going to measure it with the elastic band in there. Okay, so whatever measurement you get— oh, of course— oh no, this is— this has inches too. I'm from Canada and a lot of my things still have mostly centimeters, but anyways, um, sorry, that's my insulin pump. Okay, leave me alone. I'm busy. So when you've measured how the circumference, which is— this measurement is circumference, the measurement around a circle, which your hair would be in a ponytail, and that'd be a circle. Once you've measured that, you can determine your density, okay? So there's 3 different determinations for density. There's high density, which means you have a fair amount of hair per square inch. There's medium density, which is, you know, of course, medium. And then there's low density, all right? So through these 3 things, when you are— I have to read my things here. I am low density, all right? I do not have a lot of hair. Well, no, I'm medium. Yes, I'm medium density. Um, your ponytail measurement, if it is below 2 inches, then you are low. You, you have fine density. You're, you're low. I, I don't like Fine determines the circumference of your actual hair. So I don't like using that term. Sorry I did that. But, um, you have low density if you're under 2 inches, right? If you're 2 to 3 inches, your density is medium. Now when I did this, when my hair was— you want to be able to get all of your hair into a ponytail. Yeah. On top, or, you know, if it's super long and you could do it in the back, but you want to get all of it in. So my, my hair right now is too short to reach a ponytail, so I'm going to have a second way for you guys to do that. But my— when I did this quite a while ago, my den— my circumference was right at 2 inches. So I'm kind of on that borderline. I do that a lot in life. Everything's on borderline for me, but I am considered medium density. Okay. All right, high density would be 3 inches and over, which is a lot of freaking hair. Yeah. So that's how you do density with the ponytail. All right, the second way of finding out what your density is, is, um, so basically it's how easily you can see your scalp. Yeah. Through your hairs. I don't like doing it on my blonde bit. You take basically an inch by like a, a 4-inch square, and you're going to kind of get the hair out of the way. You can twist it up, you can do whatever, and you're going to look at how easy it is to see your scalp within that hair. Okay. Um, the easier it is to see your scalp, the lower your density. Okay. The harder it is to see your scalp, the higher the density. And if you so desire and you really, really, really, really, really want to know this, you can reach out to me and I can help you determine it. Okay, we'll just do a quick— let's meet on Zoom, let me see your hair, and I can help you out. Okay, so there's that. Okay. So that's all about density of your hair, how many hairs per square inch. It's not going to give you an exact number, but it's got those 3: low, medium, and high density. Okay, so, uh, let me see. Circumference. Circumference is when you look at your hair, you pull a strand— oh, I'm not going to pull a strand out. Um, look at, like, pull a strand out yourself if you need to figure this out, but don't do it yet. Listen to the instructions first, because there's 2 different ways to do this as well. So you pull your hair strand out, and it is going to be the— like the circumference of that hair strand, which you don't have a measuring instrument to do that with, because it's like really, really, really, really, really small. It's like millimeters, or maybe even smaller than millimeters. So you determine it by— there's the thread determination. Okay? So you get a regular piece of thread, not thick thread, not fine thread, just regular normal thread. You put it down on a piece of white paper. You put your hair down beside it. If you're a blonde, put it down on a darker piece of paper. But if you're— you've got darker hair, put it down on white paper, and you're going to compare them. You're going to look at them and think, hmm, is my hair strand the same as the thread? Thicker than the thread? Or small— finer than the thread? Okay? So the classifications here— Excuse me. Are your hair is either fine, medium, or coarse. So fine would be thinner than the thread, medium would be, um, the same as the thread or close to, and coarse would be larger than the thread. Now if you do not have thread, you can also feel your your hair strand, okay? And basically you put it laying this way between your fingers. Mm-hmm. And then you're just gonna go like this. If you can't really feel it, it's fine. If you can feel it a little bit, it's medium. If you definitely feel it, it's coarse. So those are the two ways I know of determining that. And you're gonna find out whether you have thin or no fine, medium, or coarse. Okay. So what exactly can you determine by understanding this? Honestly, this can be a game changer for you. If you never understood any of this about your hair, and you are going on what you've been told by other people, I highly recommend figuring this out yourself because I have run across quite a few new customers in my hair, in my hair, in my chair, who truly didn't understand their hair. They thought they had thick hair and it was super fine. They thought they had like, high density and it's medium or low. Like, it's just— you have to take it upon yourself to learn these things and to determine these things about your own hair so that you can understand, number one, what kind of product you need for your hair. All right, that, that's— to me, that's the number one thing. So many women that I know have a plethora of products under their bathroom sink. Seriously, a plethora. And they shouldn't. I mean, there are times that even me, understanding my hair, I have bought products, tried them, and went, "Eh." Yeah. Try it at least 3 times. That's a minimum. All right. And there are some products under my sink that I don't use all the time. There are some products under my sink that— so I have a natural wave in my hair that I can make a little bit curlier and I can make it straight very easily. And we will talk about texture in a later video, but I have products that are specifically for when I want my hair curlier, specifically for when I want my hair straighter. So I do have a couple of little containers of products under my sink, but I do use them all eventually. Yeah. So, and of course there's finishing products like hairsprays and that kind of stuff, but we'll go there in another chapter of this whole plethora thing of stuff I'm giving out because I want you guys, I want you to understand, I want you to know what's gonna work in your hair. I don't want you going and buying crap that could work for somebody else's hair, but won't work in your hair. You need to understand this, okay? This is, this is my, my God-given mission right now is to get out there and help you ladies to understand your hair so you can understand what's gonna work and what's not. And like I said, these are the things that I'm teaching today that you cannot change. You cannot make your hair— make your diameter bigger with products. A lot of these products that state that do one of two things, okay? One of two things. Anyways, it will either swell your hair up, which means it's a higher pH, which is something else I'll go into later with y'all. But if it swells your hair up, that's damaging to your hair, all right? The other thing it can do is coat your hair. And when it coats your hair, then the next time you use it, it adds another coat, and then it adds another coat, and that ends up being damaging too. So these kind of promises some of these products are making, no. I'm sorry, science does not back their promise. Does it? So anyway, so number one, the, the ways it's a game changer is that you will be able to figure out products that can work for your hair. Number two is that you will be able to figure out styling tips that can work for you and your hair. Really, you can— I can look at somebody out in YouTube land, which I am going to post this in YouTube land, but out in YouTube land where they're like, oh, here's a styling tip, do this with your hair, blahdy blahdy blahdy blahdy blah, and they have natural curl, but they don't say I have naturally curly hair and this is what I do with my hair. It's, "Hey, you all can do this too!" No. No. Someone with straight hair can't do that. It just— anyways, you'll have a better understanding of all that. Um, the other one is the damage control. Um, because you'll have a better understanding of the products to use and, and that kind of stuff, you will be able to not have your hair get as damaged. I bleached the living daylights out of this, okay? This is my look now, and I, like, I'm just like, I love it. I never thought I would go full blonde at the front. It— when I accidentally ended up a full head blonde, that scared the living daylights out of me. I did not like it. at all. So for me to have this now, I'm just like, this is working for me. This is— and honestly, I don't have a lot of product in my hair right now. I let it dry on its own. I do have a bit of wave through the back, but I like to keep the front a little bit straighter, and I love it. Thank you. Do you love your hair? I hope you do. If you do, then you know these things. If you don't, you need to know these things. That's all I'm gonna say, okay? I'm just here to help you. So with this, you are getting to know your hair's personality. Believe it or not, everything has a personality. Even my phone has a personality. Not the nicest personality, but it has a personality. So does my computer. So, um, understanding your hair really helps you to make it look fabulous and make you feel great about yourself. Huge, ladies, huge. Feel good about yourself, love yourself, show everybody. I went grocery shopping, okay? My hair hadn't been washed for like 4 days, but I skipped the wash 'cause I had to go grocery shopping. And I had 2 people pull me aside. Your hair is fabulous. And I'm like, "Oh, thank you. I really didn't do anything to it today." But I didn't tell them that. Never ever tell them those kind of things. You just say, "Thank you," and you move forward. But it's really crazy. Crazy fun. So let me see here. So I wanted to say to you that this is a fun excuse to play science with your hair, all right? So by determining, like, play science with thread and with your hair strand, we're being mini scientists here and we're figuring this stuff out, which I never ever thought I'd say in my life that I was a scientist, but yeah, I'm a scientist. So I want to say thank you for joining me. I want you to learn about your hair. And this was my density and circumference, um, tutorial, if you will. Now that you know more about your hair, it's time to find the perfect product for your hair. It really is. And with this knowledge base, you can do that a little better. I am going to ask you to go to my website at Rodan Fields. There's a quiz you can take there. And in that quiz, we have this fabulous haircare line that came out. It's more about protecting your scalp, which is always what I thought a lot of haircare products needed. And they— like, there's a quiz that you can take to determine what kind of products you should use. It's going to direct you to possibly purchase, and if you want to do that, great, go ahead. But if you'd rather try some samples, it will gather your email address and I'll be able to get ahold of you and send you some samples so you can try it. Not all products are for everybody. No. But I'd like you to try some and see if it's right fit or not. That's the deal with that. So in the comments, once this video is done, in the live, I will have a link for you to go to my site at Rodan and Fields and see what kind of products it's recommending for your hair. All right. So I can't wait to see you in the next video. My intention is to do this weekly now, to get different things about hair care, skin care, all this stuff that's in my brain that I wanna share. I want y'all to understand so you can save money, so you can save the planet from all the extra products that are getting flushed down the toilet. So that you can have fun and enjoy how you're looking, how you're feeling, all that kind of stuff. So I can't wait to see you all with your healthy, fabulous hair, and I'll see you in the next one. Take care. Bye. Bye.
More from Tami

When you can't find your phone and your cats know why 😹 #catmemes #funny #fail

Rebel on Two Wheels 🤘#ADHD #ADHDWomen #adhdselfimprovement #relationship #ADHD #ADHDMom #RebelLife








