Fit Healthy Momma Rating: 8.5/10

Core-21 is a nighttime cortisol reducer that’s designed to target and address the stress and cortisol levels that may be interfering with your ability to get proper sleep and achieve weight loss. 1st Phorm’s unique blend of ingredients is safe, and effective, and helps thousands of people get the sleep they deserve.

Sleep: we all need it but we often can’t seem to get enough of it. In fact, it’s estimated that 50-70 million Americans of all ages suffer from sleep-related problems. Yikes.

Improper sleep, especially when it’s chronic, can play a role in a number of consequences on your body and lifestyle. From feeling tired and groggy to lacking the energy to work out and deal with cravings, poor sleep can be an absolute detriment to your weight loss efforts.

Of course, you can travel down the internet rabbit hole, looking for a safe and effective way to solve your sleep problems, but you have to keep in mind that you can’t trust and believe everything you see and hear on the internet. Especially when it comes to supplements as they are largely unregulated.

Thankfully, there are legitimate brands that exist that genuinely care about providing the highest quality, life-changing supplements to people in need so that they can live their healthiest lives. This is exactly what 1st Phorm is all about, which is why I’m excited to share my review of 1st Phorm’s Core-21 supplement today so that you can decide if this would be a good fit for your supplement and sleep routine.

Quick Summary of 1st Phorm Core-21 Review



Designed for:

Nighttime Cortisol Reducer to support deep, restful sleep and lower stress levels

Key Ingredients:

Reform Blend, CortiPlex, Enzygest Fusion

Key Benefits:

Could help you sleep better, reduce stress, more energized




Avg. User Rating:

4.9/5 (Over 900 reviews)

FHM Rating:

8.5/10 (Great)

Understanding The Impact Of Sleep on Weight Loss

waking up feeling great

Over the past few decades, the amount of sleep that we as Americans get each night has been steadily decreasing. And, for much of that time period, the average BMI (body mass index) of Americans has increased, reflecting a trend towards higher body weights and obesity.

But why? Here are a few possible reasons why inadequate sleep might be hindering your weight loss efforts and even causing you to gain weight:

Increased appetite

One common connection between weight and sleep involved how lack of sleep affects our appetites. Your appetite is actually controlled by hormones and neurotransmitters, which are chemical messengers allow neurons to communicate with one another.

Specifically, the neurotransmitters ghrelin and leptin are thought to be the main controllers of appetite. A lack of sleep may affect the body’s regulation of these neurotransmitters, causing you to feel more intense and frequent hunger cues throughout the day.

Hindered Metabolism

Your metabolism actually slows about 15% during sleep, reaching its lowest level in the am. Studies hà sleep deprivation commonly leads to metabolic dysregulation, increased oxidative stress, glucose intolerance (which is a precursor for diabetes), and insulin resistance. Plus, sleeping less can disrupt your body’s circadian rhythms, all of which can result in weight gain.

Decreased Physical Activity

If you’re tired and lethargic, you’re more likely to have less energy for exercise and physical activity. Additionally, feeling fatigued while exercising is dangerous and unsafe as you’re more prone to injury and improper form. We all know that exercise is an essential element to maintaining weight loss as well as your overall health, but it’s not easy to do when you’re exhausted.

Introducing Core-21 by 1st Phorm

1st phorm core-21 supplement

Core-21 by 1st Phorm is a nighttime cortisol reducer that’s designed to support a deep, restful sleep and lower stress levels.  Additionally, Core-21 attacks another important nighttime fat loss issue by aiding your body in the digestion of nutrient assimilation while you’re asleep.

Core-21 contains a key blend of digestive enzymes to keep your body working as efficiently as possible while you sleep to allow for better recovery and an overall positive impact throughout your entire day.

Users have reported experiencing an easier time winding down for the night and getting into a deep relaxation mode before drifting gently to sleep and then staying asleep for the entirety of the night. This unique formula has been shown to naturally balance your cortisol levels, leading your body to finally relax, sleep, and recover to its full potential.


  • Helps you fall asleep and stay asleep
  • Non-habit forming
  • Contains digestive enzymes
  • Helps control cortisol levels (stress hormone)
  • Promotes nighttime recovery
  • Decreases stress levels
  • May help you lose weight


  • It’s recommended that you take it on a 5-day on, 2-day off basis, which can be hard to keep track of
  • Causes drowsiness, so cannot be taken during the day or while operating a vehicle or machinery
  • You need to ensure that you have at least 8 hours to dedicate to sleep before taking

Key Ingredients Analysis

better sleep with core-21 supplement

Core-21 has an assortment of ingredients, all carefully selected to help you reduce stress, lower cortisol levels, and get a good night of sleep. If you are considering adding Core-21 to your supplement routine, be sure to check with your doctor to make sure the ingredients are safe for you and your lifestyle. Let’s briefly take a look at what’s inside:

Reform Blend

This is a blend of Gamma-Aminobutyric Acid (GABA), Kava Extract, commonly used for relaxation, 5-hydroxytryptophan, and Melatonin, a naturally occurring hormone used to help you sleep


A blend of Ashwagandha Extract, an herb used for centuries for relaxation, and Rhodalia Extract for increased energy stamina, and strength.

Enzygest Fusion

This component contains Amylases, Lactase, Proteases, Lipase, and Cellulase.

See full list of ingredients

How to Use

1st Phorm recommends that you take three capsules with 16-20 oz. of water around 45-60 minutes before you want to go to sleep. It’s important to note that you should cycle Core-21 in a 5-day on, 2-day off pattern for best results.

Who Should Try Core-21?

sleep and core-21

Those who are struggling with getting a proper amount of sleep per night or who are dealing with any kind of sleep issues might find benefits from taking Core-21 before bedtime. For anyone who is feeling frustrated with their weight loss goals and progress, ensuring a good night of sleep and reduction in stress and cortisol levels can help you to finally see the scale budge in the right direction.

Who Shouldn’t?

Those who are 18 or younger, are pregnant, nursing, or trying to conceive should not take Core-21. Those who need to operate a vehicle or heavy machinery when using this product. Additionally, anyone with a medical condition or who is taking any prescription medications should consult with their doctor before starting to take Core-21. This supplement cannot be mixed with alcohol.

Real Core 21 Reviews and Feedback

average customer rating core-21

1st Phorm Core-21 has a 4.9 out of 5 star rating with over 900 verified customer reviews. Most people that have taken CORE-21 have reported sleeping much better without having the groggy feeling when waking up.

The negative reviews of Core 21 by 1st Phorm have a theme of the product not working for them. Either people are saying that it's too early to tell if it actually does help with sleep, or that the product just simply didn't give them better sleep.

Regardless, it's important to comb through all the negative and positive reviews so you can get a good feel if this product is right for you.

Overall, the general consensus is the product does what it says and with over 900 reviews and a 4.9/5 average rating, there is strong evidence that supports those claims.

honest customer reviews of core-21

Read more reviews

Final Thoughts: Should You Add Core-21 to Your Nighttime Routine?

If you’re having trouble falling asleep and staying asleep for a full 8 hours each night, Core-21 might be the answer you’ve been looking for.

In today’s world, we’re flooded with more stress than ever before. This stress can wreak havoc on so many aspects of our lives, with our sleep being one of them. Sleep is critical for a healthy, functioning body as well as for weight maintenance, so when we’re not getting enough of it, we’re often feeling like we’re spinning our wheels on our health and fitness journey. 

There are plenty of sleep supplements out there to choose from, but I personally love 1st Phorm’s approach to improving sleep which involves a blend of unique, science-based ingredients that target the multiple factors that play a role in our sleep. Plus, those who take Core-21 report feeling stronger, more recovered, and ready to tackle each new workout and each new day.

Tips and Tricks for Success

Remember that there’s no quick fix to poor sleep, you will also need to improve your sleep hygiene habits and set a sleep schedule for yourself. If you aren’t giving yourself a solid 8-hour block of sleep, Core-21 isn’t going to be efficient for you.

Set the stage for a great sleep in your room by keeping it cool, drawing the shades or using blackout curtains, and turning off all electronics.

Try setting a sleep schedule on your phone so that it turns off all notifications and locks the screen at a certain time each day to ensure you’re giving yourself ample time to wind down, turn off, and drift into a deep sleep.

About the Author
Tami Smith, CPT, Nutritionist

Tami Smith is a certified Macro Coach, Nutritionist and an ACE certified fitness trainer, specializing in pre and post-natal fitness. She studied business and earned her bachelor's degree in Business Economics. Tami is a mom of two and women's health advocate. Her passion is to help people live a fit, healthy life through proper nutrition and exercise!

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