This article originally appeared on People.com.

What It Is: Physiclo Compression Tights with Built-In Resistance

Who Tried It: Stephanie Emma Pfeffer,  PEOPLE Bodies writer

Level of Difficulty: 5/10

I was skeptical when I first heard about Physiclo compression tights and the company’s promise of amping up a workout just by wearing special gear. But it sort of made sense, the idea of built-in resistance making a workout harder and more efficient. And since I’m always trying to squeeze the best workout in the fewest minutes possible (who isn’t?), I ordered a pair and decided to take them for a trial run. Literally.

The first thing I noticed was how difficult they were to get on. I mean, these babies were tight! And at $110 for capris and $125 for full-length tights, I was a little annoyed at feeling like I was being stuffed into a sausage casing. Once they were on, though, things felt better — and each time I wore them they were easier to pull on.

The site says Physiclo’s technology uses elastic bands and panels stretching over different muscle groups to generate resistance. My legs definitely felt heavier wearing them.

To test the company’s claim of an increased heart rate and caloric burn, I did the same routine wearing the Physiclo tights one day and my regular workout pants another day, comparing my Fitbit stats both days.

I ran on the treadmill for 15 minutes at a pace of 6.0 and a barely noticeable 1.0 incline. Even with the added weight, the tights didn’t restrict my movement at all, although I imagined it might be hard to do my usual speed work.

Wearing the Physiclo tights I had an average heart rate of 158 (max 170), and I burned 158 calories. In regular pants my heart rate was 154 (max 164) and I burned 133 calories.

So according to my completely unscientific experiment, wearing the Physiclo pants produced not only a higher heart rate but more of a calorie burn! I was sold.

Over the next few weeks I wore them for some other activities. I jumped rope in them one day.  I wore them to the playground to do body weight exercises while my kids ran around. I tried the leg-day workout on the Physiclo site designed by Olympian Stephen Lambdin.

By this time I was starting to dig them and feel a lot more comfortable. I was able to run 5 miles on the treadmill with no problem achieving my usual speed. (Not sure if my legs were getting stronger or what, but I felt great!)

When I most felt the effects was while doing exercises like squats or the Stair Master. I did 15 minutes at level 10 and really felt it in my thighs and butt.  I felt as sore as if I had done a full hour of barre! I wondered if I would grow an awesome peach booty if I wore these consistently.

After a few weeks of wearing Physiclo sporadically, I noticed that my legs felt stronger, tighter and more toned. Not sure if that was the pants or because I was working out a lot more in general…

Black Friday is here, and Dermstore is offering a rare 30% off discount on select skincare, haircare, makeup, and more beauty essentials with the code FRIDAY. The sale starts at 12:01AM EST on November 24 (that's 9:01PM PST on November 23). There are some brand exclusions, and other brands have a lower discount of 15% or 20% off, but we're excited to see that many of our favorite products are included in the sale. Here, 12 must-buy beauty finds we'll be adding to our shopping carts.

Dr. Dennis Gross Alpha Beta Peel (regularly $148, now $104; dermstore.com)

Our editorial assistant's "favorite product ever," this formula contains powerful alpha beta acids that work to treat acne, hyperpigmentation, and signs of aging. It's not cheap, but each pack contains 60 peels, so it should last you awhile.

Erno Laszlo Peel-Off Masking Set (regularly $80, now $56; dermstore.com)

This five-pack of Erno Laszlo's most popular sheet masks is already a great deal at $80, an $100 value. But take off an additional 30%, and you'll definitely want to stock up.

Peter Thomas Roth Mask-A-Holic Kit (regularly $74, now $53; dermstore.com)

This kit makes a fantastic present, and we love that it's packaged in a ready-to-gift box. But we also wouldn't blame you if you kept these luxurious masks for yourself; the formulas target just about every skincare concern, from dryness to aging to acne.

Dermalogica Precleanse (regularly $42, now $30; dermstore.com)

In the market for a new facial cleaner? You won't regret investing in this plant-based cleansing oil from Dermalogica, which gently removes makeup and debris for instantly smoother skin.

EltaMD UV Clear Broad-Spectrum SPF 46 (regularly $33, now $26; dermstore.com)

This brand has the A-list stamp of approval: Celebs like Ashley Graham and Mindy Kaling both swear by it. The formula contains hyaluronic acid to lock in moisture and lactic acid to reduce shine.

iS Clinical Active Serum (regularly $135, now $94; dermstore.com)

More than 70 five-star reviews aren't lying: This popular serum helps brighten skin, prevent acne, and fight signs of aging, and it's free of parabens too.

Tarte Cosmetics Tarteist Trove Collector's Set (regularly $48, now $33; dermstore.com)

This set includes Tarte's Amazonian Clay products, including eyeshadow, blush, highlighter, bronzer, mascara, eyeliner, and glossy lip paint. In addition to Amazonian Clay, which helps ensure long-wear coverage, the formulas contain vitamin E to nourish skin. The full value is $386, making this a serious steal.

skyn Iceland Holiday Eye Brightening Duo (regularly $45, now $34; dermstore.com)

A Dermstore exclusive, this two-piece set includes skyn Iceland's Brightening Eye Serum and Hydro Cool Firming Eye Gels. Plus, the site is offering a limited-time bonus of the Icelandic Relief Eye Cream, a $16 value, with any skyn Iceland purchase…

You leave your doctor’s office with a gnawing doubt. She’s the one with the MD, of course. But something’s not right. Should you get a second opinion? Yes, say experts, and don’t think twice. A fresh perspective can make all the difference for your health. Here, a few good reasons to schedule another appointment.

1. There’s been no mention of a specific diagnosis. Even before your doc IDs your ailment, she should be able to tell you what’s likely going on—or at least the range of possibilities, says Leana Wen, MD, author of When Doctors Don’t Listen ($13; amazon.com). “If she doesn’t, that’s a big red flag,” she says.

2. Your own research doesn’t match up. Once you have a diagnosis—and you’ve Googled the heck out of it—don’t be afraid to question your doc’s conclusion. "Does it really explain how you’re feeling?" says Dr. Wen. Do your symptoms align with the descriptions on reputable health sites? "If not, talk to your doc— and if you still have concerns, see someone else."

3. You’re hearing about only one possible treatment. "In nearly every case, there is more than one treatment option," says Dr. Wen. "And sometimes a viable option is watchful waiting." Your provider should present multiple alternatives, along with their pros and cons, so you can decide what’s best for you.

4. You just don’t trust your doctor. If you don’t think she’s taking you seriously, or if you have any doubts about her competence, find a different expert, says Health medical editor Roshini Rajapaksa, MD. “It’s your body, so follow your instincts,” she says. "It never hurts to get a second opinion."