At Happy Mammoth, we believe that gut and hormonal health are the building blocks for a healthy life. That's why we're dedicated to supporting women in their journey to maintain optimal gut and hormonal health. SHOP SUPPLEMENTSHELP CENTERGET HELP
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Is Happy Mammoth legit?
Happy Mammoth (happymammoth.com) has a 4.5 out of 5 rating on OK.one, based on 201 user reviews collected here. It is listed under Beauty & Well-being and its reputation is excellent. Praise is nearly unanimous, with 90% rating it 4 stars or higher; The business has replied to 79% of negative reviews; Reviews mostly discuss Product, Quality, User experience. Last updated 2026-08-11.
What reviewers say
AI generated
Reviewers overwhelmingly had a great experience with this company. People regularly mention that the items are of great quality and successfully help alleviate various health issues like hot flashes and fatigue. Reviewers are particularly happy with how energetic they feel and appreciate the smooth delivery and easy ordering experience provided by the team.
However, some customers also noted that the supplements are quite expensive and the small jar sizes mean they run out quickly. A few other people also felt that the products did not produce any noticeable changes or results even after taking them for multiple weeks.
Auto-generated from all reviews of this business. For reference only.
I'm feeling so good and sleeping better! Doesn't upset my stomach at all which is a plus! Will definitely order more!
Reply from Happy Mammoth 2026-06-29
Hi there,
Thank you so much for sharing your experience with us.
We're delighted to hear that you're feeling so good, sleeping better, and that the supplement has been gentle on your stomach. It's wonderful to know it's making such a positive difference for you.
Thank you for your trust and support. We look forward to continuing to support your wellness goals.
If you ever have any questions or need assistance, please feel free to reach out to us at [email protected]. We're always happy to help.
Warm regards,
Happy Mammoth
The website claims that “We avoid statements on our website that are misleading or exaggerate efficacy or performance”
I looked into the first claim made by them about their Metabolic Harmony product. It appears to be misleading and grossly exaggerating of efficacy.
They say “Australian scientist discovers “fat melting fruit" that blocks new fat cells from forming
In a study at the prestigious University of Queensland, researchers discovered that Mediterranean moro blood orange contains a strange protein that blocks new fat cells from forming. In fact, when researchers told women to eat just 1 bite of this strange fruit each morning…they lost a shocking 17.7 centimeters off their waistlines…without any additional diet or exercise”
Now they don’t cite the study but I found a University of Queensland study on this topic. The most significant exaggeration in the above statement is about waist circumference. The group taking the Moro extract actually lost 3.6cm from their waistline not 17.7cm. This was in comparison to a placebo group that lost 2.1cm.
Also, they did not take a “bite” of a fruit, they took a 400mg tablet AND they WERE put under a diet and exercise protocol.
The study I’m reading is as follows
Briskey, David, Malfa, Giuseppe Antonio, and Rao, Amanda (2022). Effectiveness of “Moro” blood orange Citrus sinensis Osbeck (Rutaceae) standardized extract on weight loss in overweight but otherwise healthy men and women—a randomized double-blind placebo-controlled study. Nutrients 14 (3) 427 427.
Two months in and I can already see a HUGE difference in my hormones for the better. I'm sleeping better at night and my energy is getting back to what it used to be. I'm so grateful I found this product!!!
Reply from Happy Mammoth 2026-06-29
Hi Kristy,
Thank you for sharing your experience. We're so pleased to hear you've noticed such a significant difference in just two months. It's wonderful to know you're sleeping better, and that your energy is returning.
Please let us know if there's anything we can assist you with.
Warm regards, Happy Mammoth
Ordered a product that didn't work and received a refund - fine. Was told at the time I couldn't reorder that product again - also fine. Have a messenger conversation confirming this. I've now tried to order a completely different product and my account has apparently been locked, despite me presenting evidence that I was never told I couldn't order a different product in future. They then told me I could only order the new product if I paid back my entire refund of the old product! Absolute joke.
Update - after several complaints they have agreed to unlock my account.
Reply from Happy Mammoth 2026-06-30
Dear Sonia,
Thank you for taking the time to share your feedback. We're very sorry to hear about your experience and understand why this situation has been so frustrating.
We appreciate you bringing this to our attention. We'd like to review your case, as this is absolutely not our standard practice, including your previous conversations with our team, to better understand what happened and ensure everything has been handled correctly.
We'll follow up with you directly via the email address associated with your account as soon as possible after we've reviewed the details.
If you have any additional information you'd like to share in the meantime, or if you have any questions, please feel free to contact us at [email protected].
We're committed to looking into this thoroughly and will do our best to resolve this as quickly as possible.
Warm regards,
Happy Mammoth.
Absolutely love these products, they have been a game changer during perimenopause
Reply from Happy Mammoth 2026-06-29
Hi there,
Thank you so much for your wonderful review.
We're delighted to hear that you're loving the supplements and that they've been such a game changer for you during perimenopause. Knowing they've made a positive difference means so much to us.
Thank you for your trust and support. If you ever have any questions or need assistance, please feel free to reach out to us at [email protected]. We're always happy to help.
Warm regards,
Happy Mammoth
Hi there,
Thank you so much for sharing your experience with us.
We're delighted to hear that you've experienced such a positive change. Knowing the supplement has made a meaningful difference for you is wonderful to hear.
Thank you for your trust and for taking the time to leave a review. If you ever have any questions or need assistance, please feel free to reach out to us at [email protected]. We're always happy to help.
Warm regards,
Happy Mammoth
Hi there,
Thank you so much for taking the time to leave a review.
We're delighted to hear that you've noticed a difference with the supplement. It's wonderful to know it's been a positive experience for you.
If you ever have any questions or need assistance, please feel free to reach out to us at [email protected]. We're always happy to help.
Warm regards,
Happy Mammoth
Having looked at this product for so long saving it so many times in
my basket then going back to it
I decided I had to give it a go!
Wow!! It does everything it says on the tin!
The first 3 weeks I just introduced it to
my system (because I had previously had cancer and a heart attack) I checked with my pharmacist to ensure it was safe to try and all was good to crack on and try it. After the 3 weeks I got up to the recommended dose and absolutely started to see the difference.
Stomach felt less bloated my energy levels increased craving for sweet food significantly reduced. Can’t believe it amazing I feel more like myself than I have done for years.
I highly recommend this and wish I had found it at least 10 years ago.
Reply from Happy Mammoth 2026-06-26
Hi there,
Thank you so much for taking the time to share your experience with us.
We're delighted to hear that you decided to give the supplement a try and that it has made such a positive difference for you. It's wonderful to know you've noticed improvements in your bloating, energy levels, and cravings, and that you're feeling more like yourself again.
Your thoughtful approach is always encouraged, especially when managing existing health conditions.
Thank you for your trust, your recommendation, and your kind words. They truly mean a lot to us.
If you ever have any questions or need assistance, please feel free to reach out to us at [email protected]. We're always happy to help.
Warm regards,
Happy Mammoth
After feeling bat sh*t crazy a friend recommended this product to me, I am now on my 4th bottle and I feel so much better in my mind and body, I confidently recommend anyone struggling to try this product.
Reply from Happy Mammoth 2026-06-26
Hi there,
Thank you so much for sharing your experience with us.
We're delighted to hear that you're feeling so much better both mentally and physically, and that you've continued with the supplement through your fourth bottle. Knowing it has made such a positive difference for you means the world to us.
Thank you for your trust, your recommendation, and for taking the time to leave your review.
If you ever have any questions or need assistance, please feel free to reach out to us at [email protected]. We're always happy to help.
Warm regards,
Happy Mammoth
My achy tum settled right down and couldnt be more regular.
Tastes good and really does a great job. Have been using ut for well over a year and will continue doing so
Reply from Happy Mammoth 2026-06-25
Hi there,
Thank you so much for sharing your experience with us.
We're delighted to hear that you've been enjoying the supplement and that it has provided such consistent support for you over time. It's wonderful to know that you've been seeing positive results and continue to make it part of your routine after more than a year.
Thank you for your trust, loyalty, and support. It truly means a lot to us.
Warm regards,
Happy Mammoth
When I purchased this I was skeptical. So many things are just gimmicks. I was wrong. The first couple weeks I noticed a difference in bloating and appetite. It’s the real deal. Changes are slowly but that’s how it’s supposed to work so you sustain the weight loss.
Reply from Happy Mammoth 2026-06-26
Hi there,
Thank you so much for taking the time to share your experience with us.
We're delighted to hear that the supplement exceeded your expectations and that you've already noticed positive changes in your bloating and appetite. It's wonderful to know that you're seeing steady progress and feeling confident in the results.
Thank you for your trust and for sharing your experience with our community. It truly means a lot to us.
If you ever have any questions or need assistance, please feel free to reach out to us at [email protected]. We're always happy to help.
Warm regards,
Happy Mammoth
My wife says she feels a lot better every month and the symptoms she previously had are coming down. Happy wife, happy life!
Reply from Happy Mammoth 2026-06-26
Hi there,
Thank you so much for sharing your wonderful review.
We're delighted to hear that your wife is feeling so much better and that she's noticing an improvement in her symptoms.
Thank you for your trust and support. If either of you ever has any questions or needs assistance, please feel free to reach out to us at [email protected]. We're always happy to help.
Warm regards,
Happy Mammoth
On my second tub and I noticed some changes. I am getting less ISB symptoms and sleeping better. I would recommemd this product.
Reply from Happy Mammoth 2026-06-26
Hi there,
Thank you so much for sharing your experience with us.
We're delighted to hear that you're noticing positive changes, especially with your IBS symptoms and sleep. It's wonderful to know the supplement is making a difference for you.
Thank you for your trust and for recommending us to others. It truly means a lot.
If you ever have any questions or need assistance, please feel free to reach out to us at [email protected]. We're always happy to help.
Warm regards,
Happy Mammoth
I’m on my third bottle now, and already starting to feel a difference! My sleep has definitely improved, with no more night sweats or night terrors! I definitely feel calmer and more in control. I will be renewing my subscription for sure!
Reply from Happy Mammoth 2026-06-23
Hi Caroline,
Thank you for sharing your experience. We're so pleased to hear you're noticing such positive changes with your sleep and that the night sweats are no longer disrupting your nights.
Please let us know if there's anything we can assist you with.
Warm regards, Happy Mammoth
I have been using Metabolic Harmony for the last month. Did nothing at all for me. Having said that, I have ordered Deep Sleep Mode from the same company. Let’s see what happens !
UPDATE: Happy Mammoth has issued a refund for the above. I am delighted with how quickly they responded and of course with the refund. Thank you 👍
Reply from Happy Mammoth 2026-06-23
Hi Maria,
Thank you for taking the time to provide your account details and allowing us to review your case further.
While we're sorry to hear that Metabolic Harmony wasn't the right fit for you, we're pleased that we were able to locate your account and process a refund for one jar under our 60-day money-back guarantee.
For future reference, if you ever feel that a supplement isn't delivering the results you expected, we encourage you to reach out to our support team. Sometimes a small adjustment to the timing, dosage, or routine can make a meaningful difference, and if not, we're always happy to discuss the options available, including our guarantee.
We truly appreciate you giving our supplements a try and hope that Deep Sleep Mode provides the support you're looking for.
Warm regards,
Happy Mammoth
Received what I ordered and on time. Feeling improvement gradually, but only on week 2 so hoping to see bigger changes come. Moods are improving- happy about that! I would order again- no side effects, and seems to be making a difference. Pricey though… so we will see how the next few weeks go.
Reply from Happy Mammoth 2026-06-22
Hi Terran,
Thank you for sharing your experience. We're so glad to hear you're already noticing improvements in your mood after just a couple of weeks. We appreciate your honest feedback and hope you continue to see positive changes as you progress.
Please let us know if there's anything we can assist you with.
Warm regards, Happy Mammoth
It's been about a week or two, and I can definitely tell that my appetite is down, even during the worst phase of my cycle (when I'm usually starving). So it definitely works!
Reply from Happy Mammoth 2026-06-23
Hi there,
Thank you so much for sharing your experience with us.
We're delighted to hear that you've already noticed a difference and that you're feeling more in control of your appetite, even during times when cravings are usually at their strongest. It's wonderful to know that you're already experiencing positive changes.
Thank you for your trust and for taking the time to leave a review. It truly means a lot to us.
Warm regards,
Happy Mammoth
THIS PRODUCT WAS NOT RIGHT FOR ME. I FELT VERY MOODY AND I GAINED WEIGHT
I FELT VERY BLOATED TOO. I AM 52 WITH MENOPAUSE SYMPTOMS. I CONSUME 3 BOTTLES SO FAR. NO GOOD FOR ME .
Reply from Happy Mammoth 2026-06-22
Hi Beatriz
Thank you for taking the time to send us your valuable feedback regarding your experience with our supplement.
Your satisfaction is of utmost importance to us, and we are continually striving to find new ways to provide you with the best possible experience.
We are sorry to hear that our supplement didn't work out for you. We respect that everyone's body is different and may respond in unique ways.
We have already initiated the refund process in your account for one jar under our 60-day Money-back guarantee. The guarantee covers 1 jar of each product. You can read more about our guarantee and how it works on:
https://happymammoth.com/pages/support
You can expect to see this refund reflected in your account within the next 2 to 5 business days.
Once again, we apologize for any inconvenience this situation may have caused you, and we appreciate you sharing your experience with us.
If there is anything else we can assist you with or if you have any further concerns, please don't hesitate to reach out to us.
Hope you have a wonderful day,
Happy Mammoth
Used for 6 weeks, made no difference, possible cause of more hot flashes .
Asked Happy mammoth for advice. AI generated reply, that wasn't helpful.
Rubbish customer service, over priced supplements that have not done what they promised. ( I would have been happy with any drop in weight and just one good night's sleep)
Reply from Happy Mammoth 2026-06-23
Hi Sarah,
Thank you for getting back to us and for providing your account details so we could review your case more closely.
We're sorry to hear that the supplement didn't provide the improvements you were hoping for and that your experience with our support fell short of your expectations. We appreciate the opportunity to take a closer look.
After reviewing your account, we can confirm that your order is covered under our 60-day money-back guarantee, and we've already issued a refund for the Hormone Harmony from this order. You should see this reflected in your account within the next 3 to 5 business days, depending on your financial institution.
We're also sorry that your interaction with our virtual assistant did not feel as helpful or personal as you were hoping for. While we can see that the option to request a refund was explained during the conversation, we understand that the overall support experience fell short, and we appreciate you bringing this to our attention.
Thank you again for sharing your feedback and for giving us the opportunity to review your case. We wish you all the best, and please don't hesitate to reach out if there's anything else we can assist you with.
Warm regards,
Happy Mammoth.
Happy Hormone has helped me through Perimenopause and into menopause by keeping my emotions on an even keel and keeping the hot flashes at a minimum. I recommend this to all my friends.
Reply from Happy Mammoth 2026-06-22
Hi Barbara,
Thank you for sharing your experience. We're so pleased to hear Hormone Harmony has supported you through perimenopause and menopause. We truly appreciate your recommendation.
Please let us know if there's anything we can assist you with.
Warm regards, Happy Mammoth
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