Happy Mammoth  Reviews 12,582

TrustScore 4 out of 5

4.2

While we don't verify specific claims because reviewers' opinions are their own, we may label reviews as "Verified" when we can confirm a business interaction took place. Read more

To protect platform integrity, every review on our platform—verified or not—is screened by our 24/7 automated software. This technology is designed to identify and remove content that breaches our guidelines, including reviews that are not based on a genuine experience. We recognise we may not catch everything, and you can flag anything you think we may have missed. Read more

Review summary

Created with AI, based on recent reviews

Looking at 2,450 reviews, reviewers had a great experience with this company. Customers are really happy with the products, often noting their effectiveness in improving various aspects of their well-being, from mood and energy to physical symptoms. People appreciate the quality of the items and the positive user experience, finding the company easy to deal with and the subscription service convenient. However, some customers were not happy with the pricing, finding the products to be quite expensive. Additionally, a few people experienced issues with their orders, including problems with delivery or the cancellation process.

What people talk about most

Product

People report positive experiences with product. Many customers praise the effectiveness of products like... See more

Quality

Consumers generally express satisfaction with product quality, often describing products as high-quality and... See more

Order

Users describe ambiguous interactions with order. Many customers report positive experiences, praising the... See more

User experience

Reviewers highlight positive aspects of user experience. Many customers describe the product as a "game... See more

Price

Customers consistently express disappointment with the price of products. Many reviewers find the items to be... See more

Reviews shaping this summary

Rated 4 out of 5 stars

I tried this and noticed that my face started losing the inflamed look, especially on the sides of my face. After about a week and a half I stopped waking up in the middle of the night covered in swea... See more

Company replied

Rated 4 out of 5 stars

Just finished my first bottle. Haven't noticed anything different, however I've a second bottle to try so, fingers crossed. The product arrived fairly quick. It was well packaged. Plenty information s... See more

Company replied

Rated 5 out of 5 stars

I’m going through perimenopause and Hormone Harmony has honestly become something I cannot live without right now. If I forgot one morning, it actually takes me approx. two weeks to feel more stable a... See more

Company replied

Rated 5 out of 5 stars

I started taking these supplements about a year ago they worked well after 6 months I stopped thinking I didn’t need them they were just a placebo affect!!! Wrong!! 3 month later I had mood swings, ni... See more

Company replied


Company details

  1. Vitamin and Supplements Store

About Happy Mammoth

Written by the company

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 SUPPLEMENTS HELP CENTER GET HELP

Contact info

4.2

Great

TrustScore 4 out of 5

13K reviews

5-star
4-star
3-star
2-star
1-star

Replied to 96% of negative reviews

Typically replies within 24 hours

How this company uses Trustpilot

See how their reviews and ratings are sourced, scored, and moderated.

Companies on Trustpilot aren't allowed to offer incentives or pay to hide reviews. Reviews are the opinions of individual users and not of Trustpilot. Read more

Rated 1 out of 5 stars

Im.a belly reset returning customer…

Im.a belly reset returning customer however the formula isnt as strong as you used to be which is a shame however i got a new one delivered today and it expires 1 11 26 which gives me. Not enough time to finish it as im.still on another tub Happy mammoth agreed on a return but at my expense and also up to 14 days to process my refund
I had asked for a partial refund also
Sending short expiry supplrments is cheeky and the potency wont be as good as a fresher batch
So for this reason as a previously happy returning customer im very very upset and put out
A refund has been given
On closer reading it says Consuming this product can expose you to lead, which is known to the State of California to cause birth defects or other reproductive harm".
I feel terrible that i have been buying this and exposing my body to lead poisoning i have been feeling tired a lot this could be a factor i have bought a heavy metal testing kit to test my levels
buyer beware

April 16, 2026
Unprompted review
Happy Mammoth  logo

Reply from Happy Mammoth

Dear Kelly,

Thank you for taking the time to update your review and share your concerns. We’re really sorry for the distress this has caused, especially as a returning customer.

We understand your concerns regarding the expiry date. Please rest assured that our products remain safe and effective up until the stated expiry when stored as directed.

We’d like to reassure you that our products are tested in accredited laboratories and must comply with strict regulations, including California’s Prop 65 requirements. It is a California regulation that requires businesses to provide warnings about certain chemicals. It’s important to note that these warnings are often mandated even when the exposure levels are minimal and well below those considered harmful. It doesn’t necessarily indicate a significant risk.

This includes batch testing and ensuring that any naturally occurring trace elements, such as heavy metals, remain well within established safety limits. These limits are set very conservatively, and the presence of a warning does not mean a product is unsafe, but rather reflects California’s particularly strict labeling standards. Many everyday products sold in California, from food items to household goods, carry similar warnings due to the state’s requirements. Rest assured, our products meet all safety standards.

We’re confident in the safety of our products and are always committed to transparency and compliance. We continuously monitor our products to ensure they meet all applicable guidelines.

If you would like to discuss this further, please feel free to reach out to us at reviews@happymammoth.co, we’ll be happy to assist you.

Warm regards,
Happy Mammoth.

Rated 2 out of 5 stars

I honestly don’t feel or see any…

I honestly don’t feel or see any difference. Of course I’m just one person. It might be different for others. I’m almost done with my first bottle, halfway there and nothing seems different in my waist or my weight or anything.

April 16, 2026
Unprompted review
Happy Mammoth  logo

Reply from Happy Mammoth

Hi Priscilla

Thank you for taking the time to share your experience. We understand how disappointing it can feel when you’ve been consistent and haven’t noticed any changes yet.

Since you’re still on your first bottle, you’re right around the stage where many customers begin assessing their results. While some people notice changes earlier, others may need a bit more time and consistency to see a difference.

If you’re open to it, we’d be happy to learn a bit more about your routine and goals so we can better support you. And if by the end of your jar you still don’t feel it’s the right fit, please remember that you’re covered by our 60 day money back guarantee for one jar of the product.

We’re here to help, so feel free to reach out if you’d like further assistance.

Warm regards,
Happy Mammoth

Rated 2 out of 5 stars

No way to have effective communication except email.

Repeated behaviour grabbing my money without my authority. Said they would refund and then grabs money again!!! a few days later. They say I have a ticket and will communicate and don't.
Distressing.
Upgraded to a 2. Email is the only way. Money returned after a lot of hassle.

April 16, 2026
Unprompted review
Happy Mammoth  logo

Reply from Happy Mammoth

Hi there,

Thank you for taking the time to share your experience. We’re really sorry for the frustration this situation has caused, especially around the charges and the difficulty in getting timely communication. We also apologize for any delays in getting back to you.

From what you’ve described, it’s likely that a subscription was set up on a previous order. When a recurring order is active, future orders are processed automatically based on the frequency selected at checkout. To help prevent unexpected charges, we do send a reminder email before each order is created, giving you the option to skip, reschedule, or cancel if needed.

That said, we understand how distressing this felt, and we’d really like to review your case in detail to make sure everything has now been fully resolved and to assist you further if needed.

Please feel free to reach out to us directly at reviews@happymammoth.co with your details, and our team will be happy to look into this for you.

Warm regards,
Happy Mammoth

Rated 4 out of 5 stars

Feeling Good

Just finished my first bottle. Haven't noticed anything different, however I've a second bottle to try so, fingers crossed. The product arrived fairly quick. It was well packaged. Plenty information sent via emails.

March 18, 2026
Unprompted review
Happy Mammoth  logo

Reply from Happy Mammoth

Hi Elizabeth,
Thank you for your honest feedback. We’re glad to hear delivery and communication were smooth. As many customers start noticing changes after a bit more time, we hope your second bottle brings more noticeable results. If you’d like any support along the way, feel free to reach us at reviews@happymammoth.co.
Warm regards, Happy Mammoth

Rated 4 out of 5 stars

First year of Hormone Harmony

I've been using Hormone Harmony for almost a year. I am happy with it overall. The first 6 months I saw and felt changes. My hot flashes diminished, I lost a few pounds, without trying, (and it stayed off) the bloating wasn't as often. I felt like I found the right hormone for me. But this last 4 or 5 months, the bloating and some of the pounds came back, with some fatigue. Maybe it's my age or life in general that's causing the fluctuations. I get the emails showing other supplements to supplement my Hormone Harmony. But I'm not interested in that.

I know our bodies respond differently and it can't be perfect.

I do love that it's all natural ingredients.

Thanks for good service and helpful information.

April 14, 2026
Unprompted review
Happy Mammoth  logo

Reply from Happy Mammoth

Hi Wendy,
Thank you for sharing such a thoughtful and honest review. We’re really glad to hear the positive changes you experienced, especially in the first months. It’s completely natural for the body to fluctuate over time, and we appreciate your balanced perspective. If you’d ever like support or guidance, feel free to reach us at reviews@happymammoth.co.
Warm regards, Happy Mammoth

Rated 5 out of 5 stars

Good product

Good product. It works.

March 31, 2026
Unprompted review
Happy Mammoth  logo

Reply from Happy Mammoth

Hi Alec,
Thank you for your feedback. We’re glad to hear the product is working well for you.
Warm regards, Happy Mammoth

Rated 5 out of 5 stars

Really helpfull product

Really helpfull product. I can surely recommend it.

April 13, 2026
Unprompted review
Happy Mammoth  logo

Reply from Happy Mammoth

Hi Janni,
Thank you for your kind words. We’re so pleased to hear you find the product helpful and appreciate your recommendation.
Warm regards, Happy Mammoth

Rated 5 out of 5 stars

I like it it tastes good too

April 13, 2026
Unprompted review
Happy Mammoth  logo

Reply from Happy Mammoth

Hi there,
Thank you for your feedback. We’re glad to hear you’re enjoying the taste as well as the product.
Warm regards, Happy Mammoth

Rated 1 out of 5 stars

I am using Hormone Harmony and since…

I am using Hormone Harmony and since taking it I have been feeling very constipated and bloated.
It does not do what they say it does and very expensive on top of that.

April 13, 2026
Unprompted review
Happy Mammoth  logo

Reply from Happy Mammoth

Hi there,

Thank you for sharing your experience with us. We’re sorry to hear this has been your experience, especially with the discomfort you’ve described.

While some people may notice temporary digestive changes at the beginning, ongoing symptoms like constipation and bloating can also mean the product isn’t the right fit for you. You may consider pausing use and, if needed, consulting with your healthcare professional.

We’d really like to support you further and take a closer look at your case. Please feel free to reach out to us at reviews@happymammoth.co with your order details so we can assist you directly. And if you decide not to continue, please remember our 60 day money back guarantee is there for you.

We’ve tried locating your account with the information provided but haven’t been able to find a match in our system just yet. It’s possible the order may have been placed under a different name or email address.

Could you please double-check and send us any alternative details that might have been used, such as another email, name, or even an order number if available? This will help us locate your account and assist you as quickly as possible.

Warm regards,
Happy Mammoth

Rated 5 out of 5 stars

All of my stomach issues are gone

All of my stomach issues are gone, plus my bloating feeling after I eat.

April 12, 2026
Unprompted review
Happy Mammoth  logo

Reply from Happy Mammoth

Hi Brenda,
Thank you for your feedback. We’re so pleased to hear your stomach issues and bloating have improved.
Warm regards, Happy Mammoth

Rated 5 out of 5 stars

It really made a difference in my…

It really made a difference in my cravings. I was able to return to my normal diet. I don't have anymore cravings for sweets as I used to, I was out of control. It really works!

April 12, 2026
Unprompted review
Happy Mammoth  logo

Reply from Happy Mammoth

Hi Laura,
Thank you for sharing your experience. We’re glad to hear you are noticing improvements.
Warm regards, Happy Mammoth

Trustpilot is assessing this review in accordance with our flagging process.

Rated 5 out of 5 stars

I have noticed a big improvement in my…

I have noticed a big improvement in my mood and hot flashes i also have more energy so thank you

April 13, 2025
Unprompted review
Happy Mammoth  logo

Reply from Happy Mammoth

Hi there,
Thank you for your kind words. We’re so happy to hear you’ve noticed improvements in your mood, energy and hot flashes.
Warm regards, Happy Mammoth

Rated 5 out of 5 stars

No more night sweats and reduced sugar…

No more night sweats and reduced sugar cravings

April 12, 2026
Unprompted review
Happy Mammoth  logo

Reply from Happy Mammoth

Hi Aiesha,
Thank you for your feedback. We’re pleased to hear your night sweats have improved and that your sugar cravings have reduced.
Warm regards, Happy Mammoth

Rated 5 out of 5 stars

The only thing that seems to help my…

The only thing that seems to help my bloating and digesting. I’ve struggled for many years, and glad to finally start eating some foods that I haven’t been able to.

April 12, 2026
Unprompted review
Happy Mammoth  logo

Reply from Happy Mammoth

Hi Sharon,
Thank you for sharing your experience. We’re so glad to hear the product has helped your digestion and allowed you to enjoy foods again.
Warm regards, Happy Mammoth

Rated 5 out of 5 stars

This has been a game changer for me

This has been a game changer for me. Perimenopause came with a bang out of nowhere. I was feeling super irritable, stressed, hot flushes, night sweats, insomnia, headaches and body aches. I didn’t know what had hit me. After a week on hormone harmony all of these symptoms eased. Some have since disappeared completely. I feel calmer, healthier, and the hot flushes are very minor now. I recommend this to all of my girlfriends.

April 12, 2026
Unprompted review
Happy Mammoth  logo

Reply from Happy Mammoth

Hi Hannah,
Thank you for such a powerful review. We’re so pleased to hear how quickly your symptoms improved and that you’re feeling calmer and healthier. It means a lot that you’re recommending it to others as well.
Warm regards, Happy Mammoth

Rated 5 out of 5 stars

Happy Mammoth, Hormone Harmony - can’t recommend highly enough!

Honestly, this product has been life changing! I was struggling so much with energy levels and everything felt such hard work. I had hip pain and sometimes struggled walking upstairs. Hormone Harmony is managing all those symptoms and I also lost weight which previously refused to budge! I’m also on HRT and if I had to give up one it wouldn’t be the hormone harmony

April 11, 2026
Unprompted review
Happy Mammoth  logo

Reply from Happy Mammoth

Hi there,
Thank you so much for sharing your experience. We’re really glad to hear how much of a positive difference it’s made for you, especially with your energy, comfort, and overall wellbeing.
It’s wonderful to know you’re feeling better and seeing those changes. We truly appreciate your kind words and recommendation.
If you ever need any support along the way, feel free to reach out, we’re always here to help.
Warm regards,
Happy Mammoth

Rated 5 out of 5 stars

I have been taking hormone harmony and…

I have been taking hormone harmony and bloat banished for a while now and feel great. Mild menopause symptoms and bloat feeling is gone. I am so pleased and will now look into other products to add to my routine.

April 11, 2026
Unprompted review
Happy Mammoth  logo

Reply from Happy Mammoth

Hi there,
Thank you so much for sharing your experience. We’re really glad to hear you’re feeling great and that your symptoms have improved.
It’s wonderful to know the supplements have been a positive addition to your routine. If you ever need any guidance exploring other options, feel free to reach out, we’re always here to help.
Warm regards,
Happy Mammoth

Rated 5 out of 5 stars

Change your life

I am 65 and like most people was having digestive and middle age weight gain issues. Happy Mamoth got everything moving again. Digestion became easier and my body responded with more energy and better gut response. I started running and the few excess kilos dropped off. I reccomend anyone of any age to try it. You wont be sorry.

April 11, 2026
Unprompted review
Happy Mammoth  logo

Reply from Happy Mammoth

Hi there,
Thank you so much for sharing your experience. We’re really glad to hear you’re feeling more energized and that your digestion has improved.
It’s wonderful to know it’s supported you in making positive lifestyle changes as well. We truly appreciate your recommendation and you taking the time to share your journey.
If you ever need any support along the way, feel free to reach out, we’re always here to help.
Warm regards,
Happy Mammoth

Rated 5 out of 5 stars

I am a man taking Complete Gut Repair

I am a man taking Complete Gut Repair. I would highly recommend this supplement. I feel less bloated and now have a flat stomach at 54 years old 💪

April 10, 2026
Unprompted review
Happy Mammoth  logo

Reply from Happy Mammoth

Hi there,
Thank you so much for sharing your experience. We’re really glad to hear you’re feeling less bloated and seeing such great results.
We truly appreciate your recommendation and you taking the time to leave your feedback. If you ever need any support, feel free to reach out, we’re always here to help.
Warm regards,
Happy Mammoth

The Trustpilot Experience

Anyone can write a Trustpilot review. People who write reviews have ownership to edit or delete them at any time, and they’ll be displayed as long as an account is active.

Companies can ask for reviews via automatic invitations. Labeled Verified, they’re about genuine experiences.

Learn more about other kinds of reviews.

We use dedicated people and clever technology to safeguard our platform. Find out how we combat fake reviews.

Learn about Trustpilot’s review process.

Here are 8 tips for writing great reviews.

Verification can help ensure real people are writing the reviews you read on Trustpilot.

Offering incentives for reviews or asking for them selectively can bias the TrustScore, which goes against our guidelines.

Take a closer look