heySlim Reviews 

95
TrustScore 4 out of 5

4.2

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Review summary

Created with AI, based on recent reviews

Considering 93 reviews, reviewers had a truly great experience with this company. Customers frequently praise the exceptionally fast delivery times and the remarkably straightforward, efficient ordering process that makes getting medical treatments very simple. Consumers also deeply appreciate the remarkably helpful staff, noting that professionals provide knowledgeable guidance and reassuring personal attention throughout their entire journey. Some reviewers were not happy with unexpected delivery delays, processing holdups, and a noticeable lack of communication regarding order status updates. A few other people also felt that reaching out to customer support was quite frustrating and difficult when trying to resolve missing parcel issues.

What people talk about most

Service

Reviewers highlight positive aspects of service, consistently praising the reliability, professionalism, and... See more

Delivery service

Users describe positive interactions with delivery_service, frequently highlighting the speed and reliability... See more

Order

Customers had ambiguous experiences with order processing, highlighting a split in satisfaction levels. While... See more

Staff

People report positive experiences with staff, highlighting helpful and caring doctors who provide personal... See more

Customer service

Consumers find customer service experiences to be mixed, reflecting a wide range of opinions. Many reviewers... See more

Reviews shaping this summary

Rated 4 out of 5 stars

Straightforward ordering process. Good app to monitor order progress. Kept informed. Quick approval. Delivery slightly longer than expected. Very well packaged pen. Slight negatives were only 4 needle... See more

Company replied

Rated 4 out of 5 stars

After a slight delay, which was to be expected due to black Friday sales. Everything was shipped and recieved fairly quickly. My only suggestion would be to offer alternative courier services.

Rated 5 out of 5 stars

The whole process was a breeze from start to finish. I was updated on the progress of my order through message and email notifications which I appreciated. I ordered on Monday afternoon and I received... See more

Company replied

Rated 5 out of 5 stars

I don’t usually write reviews, however I felt I should share my experience with Hey Slim. I placed my first order on Thursday evening around 11pm and, after placing it, I made the mistake of readi... See more


Company details

  1. Weight Loss Service

Written by the company

heySlim is a UK, doctor-led weight-management service. We combine secure online consultations with personalised treatment plans, clinical monitoring, and ongoing support. Our GMC-registered clinicians review every case, and licensed pharmacies dispense and deliver medications where appropriate. We’re committed to clear pricing, fast customer support, and safe, evidence-based care. Your feedback helps us improve every step of the journey. Share your experience with heySlim and help others make informed decisions about their health.


Contact info

4.2

Great

TrustScore 4 out of 5

95 reviews

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

Asks customers to review

This company invites their customers to review, whether positive or negative

Replied to 83% of negative reviews

Typically replies within 1 week

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4.2

All reviews

(95)

92 reviews in the last 12 months

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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 3 out of 5 stars

Too much hassle

I would have given 5 stars for the fast processing and delivery, but I am fed up with receiving multiple emails and texts from them every single day, without the option to unsubscribe. I’ve tried to block their text messages but I still keep getting them.

November 28, 2025
Rated 5 out of 5 stars

Really pulled all the stops out 😊

I put a review on here last week about the poor packaging I received from hey Slim.
I'd like to put a very positive review about how they dealt with my issue.
I was contacted after my email by Justin to apologise and to say they took my concerns seriously and a senior pharmacist would be in touch, they were as good as their word, I was told they had been looking at wool packaging and based on recent feedback they were going to review their packaging.
I was promised some needles, they sent me a full box of 100 as a goodwill gesture along with a discount on my next pen.
They really did take on board my concerns which is fantastic as a lot of companies don't care.
I also had a chat with one of the pharmacists and he was really knowledgeable helpful in terms of my dose.
I was able to place my next order early given the Christmas period, ordering again was very simple, I received my pen yesterday wrapped in wool, larger ice pack, still frozen and they'd very kindly put 100 wipes in there too. Excellent service!
❤️

December 13, 2025
Unprompted review
Rated 1 out of 5 stars

****Avoid**** LONG DELAY'S*****

Order placed on 28th November. Still showing as "processing". Ive been asked to submit my ID twice, which I have completed swiftly. Trying to speak to a human is nearly impossible as you're faced with an AI bot. Order elsewhere! Not worth the hassle!

Disappointing!!!

December 11, 2025
Unprompted review
Rated 1 out of 5 stars

Very Slow - No Communication

I ordered on 3rd Dec, it was quickly approved and it has still not been dispatched and no communication as to why not 5 days later. I am now likely to miss my dose of medication this week because of this. I tried to contact support today, but sat as 5th in line with a 9-12 minute wait for over 15 minutes.

Order #2976.

December 3, 2025
Unprompted review
heySlim logo

Reply from heySlim

Hey Ross,

I’m really sorry for the delay with your order and for the lack of proactive communication.

I’ve located order #2976 and can confirm that we’ve prioritised it for dispatch today with Royal Mail Tracked 24. You’ll receive a separate email with your tracking details as soon as your parcel has been handed over to Royal Mail.

We’ve also reviewed your contact attempt – waiting in a queue that long and not getting clear answers is not the standard we want to provide. We’re currently increasing support capacity and improving our order-status updates so patients aren’t left having to chase us.

I’m sorry again for the stress and inconvenience this has caused, and thank you for bearing with us while we put this right.

Best regards,
Justin

Rated 1 out of 5 stars

Poor communication.

Ordered MJ two days ago. Received an email asking for proof of prior use to which i replied- have heard nothing back.
Have emailed multiple times and had no response. Called the company all day yesterday and again this morning and getting an automated message to say they are open Monday-Friday 9-5 but cannot answer right now. Really worried I’ve lost my money

December 5, 2025
Unprompted review
heySlim logo

Reply from heySlim

Hey,

I’m really sorry for the worry and frustration this has caused.

We ask for proof of prior use with Mounjaro when patients choose a non-starter dose because our doctors are required to confirm it’s safe and appropriate before they prescribe. That review should never feel like you’ve been left in the dark, and I’m sorry we’ve fallen short here.

Please be reassured that your order will either be fully processed and dispatched once the clinical checks are complete, or refunded if for any reason we’re unable to proceed.

If you can send us your order number by replying to the original email we sent you, we’ll prioritise your case and get back to you as soon as possible with a clear update.

Thank you for your patience while we sort this out.

Rated 5 out of 5 stars

Very easy to order from

Very easy to order from, quick reply from yourselves. Accepted as a customer and injection sent out all within a day. Best pharmacy I have dealt with so far.

November 26, 2025
Rated 1 out of 5 stars

Late and incomplete order. AVOID!

Firstly when I ordered it showed that I would recieve my order within 2 days. Then I received an email saying it was delayed due to "Black Fridag sale". If youre gping to have a sald you should be prepared for the increased orders. So my mediacation was already delayed past when I need to take it. My order then since arrived but is incomplete. They have strangely provided disposal for medical waste but have not provided the necessary needle attachments and wipes. The pen alone is now useless and I still am unable to take my medication and there is no contact support email or form to talk to a representative, just an ai chatbot.

December 2, 2025
Unprompted review
heySlim logo

Reply from heySlim

Hi there,

I’m really sorry for the experience you’ve had. That’s the last thing we want for anyone in our care.

You’re absolutely right that if we run a Black Friday promotion, we should be prepared for the extra demand. While we did email to explain that orders would be delayed because of the sale, we’re reviewing our planning so this doesn’t happen again.

The missing needle attachments and wipes are a packing mistake on our side, and I completely understand how frustrating it is to receive a pen and sharps bin but not the items you actually need to use it. This isn’t the standard we set for ourselves. We’d like to put this right straight away by sending the missing items out to you as a priority.

Thank you for taking the time to share this – your feedback is helping us fix what went wrong here and improve how we communicate around busy periods.

Justin
on behalf of the heySlim team

Rated 1 out of 5 stars

HIGHLY AVOID

HIGHLY AVOID

Bought Mounjaro and deeply regretted it I uploaded all my evidence paid for next day delivery (it didn’t come)
Trying to speak with advisor by emailing,chat and phone no one and I mean no one gets back to you it’s just automated. Massive con of a company !!
Do not waste your money shop a lot more reliable.

November 28, 2025
Unprompted review
heySlim logo

Reply from heySlim

Hello,

We take feedback like this very seriously, but we are unable to locate an order in our system based on only the information available here. Also, to clarify, we don’t charge for shipping even though we do ship everyting with Royal Mail Tracked 24 hrs.

We would like to get to the bottom of this. Please reach out to us directly at support@heyslim.co.uk with your order reference number so we can look into this immediately.

Best,
Justin

Rated 1 out of 5 stars

No contact after payment

I registered and paid on 29 November. I uploaded the info they wanted. I also asked for a human to contact me re dosage. Despite being told twice now that an agent will get back to you shortly, I have had no contact at all from anyone - nothing in spam before you ask. I am very concerned as this is a large amount of money to just send to a faceless/voiceless company! I am considering just cancelling the whole lot. Please respond!
After their initial response 18 hours ago I have heard nothing! I think I’m finished with heyslim and wish to cancel. I’m saying this on here as there has been no response to 3 emails I have now sent them!

December 2, 2025
Unprompted review
heySlim logo

Reply from heySlim

Hey Karen,

I’m really sorry about the delay in getting your order shipped.

We’ve had an unusually high volume of new registrations and clinical queries following the Black Friday period, which has created a backlog for our doctors and support team. That being said, you should absolutely have heard from a human by now, particularly after asking for help with dosing.

To reassure you, our team is working through Zendesk messages from that period, including yours, and we’ve just responded.

If you’d prefer not to go ahead, just reply to our Zendesk message and we’ll help you with cancelling your order and discussing next steps.

We know it doesn’t feel good to be left waiting, and we’re actively working through the backlog so that no one is left in this position again.

Best wishes,
Justin
Founder, heySlim

Rated 1 out of 5 stars

My account was changed to inactive due…

My account was changed to inactive due to there pricing and me being unwell. They still proceeded to take payment despite this. All staff offline to try and sort why they did this and a refund

November 29, 2025
Unprompted review
heySlim logo

Reply from heySlim

Hey,

I’m really sorry for this, especially while you were unwell.

I’ve looked into it and the payment was taken when your treatment plan, which had been placed on “pause”, automatically resumed on the date set in our system.

We completely understand that this didn’t match your expectation when you’d made your account inactive.

As confirmed in our direct messages, your payment has now been fully refunded, your order has been cancelled, and your treatment plan has been stopped so you won’t receive any further charges.

We’ve also removed the old “pause” option so that, going forward, plans can only be rescheduled or cancelled, which should prevent this from happening again.

If you’d like to discuss anything further, please get in touch via our help centre on the website and we’ll be happy to help.

Best,
Justin

Rated 1 out of 5 stars

I feel this company is a scammer

I feel this company is a scam. They are offering weight loss injections much cheaper than most other companies. I completed the online medical history, was approved and directed to make payment. I completed the payment with Apple Pay and it showed on my online banking that I’d paid but it don’t show on Hey Slim and they were still asking me to make payment and directing me to use my card number. A few hours later my bank showed the payment had been refunded so I paid again with Apple Pay and the same thing happened. There’s no way I was going to enter my card details!!

November 27, 2025
Unprompted review
heySlim logo

Reply from heySlim

Hey,

This is Justin, one of the co-founders of heySlim. I’m really sorry for the stress and confusion this caused you, and I completely understand why it felt worrying.

I’ve had a look into what you’ve described, and it sounds like this is what happened:

- When you paid with Apple Pay, your bank placed an authorisation hold on the funds.

- Our payment processor then didn’t complete the charge (this can be for a few reasons, for example, a mismatch in security checks or the session timing out), so the authorisation was automatically reversed.

- Because the payment never fully completed on our side, your order in our system still showed as unpaid, which is why you were prompted to pay again.

That’s also why the money appeared as paid at first, then later showed as refunded/released back to you by your bank.

If you’re willing, please reach out to us at support@heyslim.co.uk with the email address you used to sign up. We’ll be happy to provide a full explanation and written confirmation of the payment status from our side.

Best,
Justin

Rated 5 out of 5 stars

Great company

Great company, very helpful and trustworthy,lovely team. My doctor is always looking after me,gives me the best advices and very helpful. I finally see good results with my weight loss journey and I'm so happy and grateful to Heyslim team. Definitely recommend

November 22, 2025
Unprompted review
Rated 4 out of 5 stars

Re order confusion

I was very impressed with Hey Slim and Doctor Ballan’s personal phone call.
It was refreshing knowing that he was aware of my medications etc and felt reassured these would not have a negative reaction with the mounjaro.
I felt secure knowing I could contact him should I have any concerns.
However the payments side of the company and the support emails were quite confusing and I ended up being charged £199 for a repeat order which I did not expect.( I may have misread the T&Cs)
I thought by pressing the cancellation order option straight away my order would not be processed or dispatched.
The cancellation did go through as I was offered a retention discount but this was added to a future order not the order in question.
Dr Ballan contacted me and made sure the retention discount was refunded and would also apply to my next order when and if I felt ready to order.
I have received an email confirming this from Justin and it would seem these issues could have been avoided but the outcome is satisfactory.

November 20, 2025
Unprompted review
heySlim logo

Reply from heySlim

Dear Elaine,

This is Justin, a co-founder here at heySlim. I wanted to apologise for the experience you’ve had regarding order processing and clarify why it happened.

Any retention offer discounts apply to subsequent orders rather than orders already placed. Since your offer was accepted after your renewal order, it was applied to your next order.

We understand this could have been clearer, so we have applied an additional credit to your latest order and kept the £40 renewal offer you accepted for your next order.

Please reach out if there’s anything else I can do.

Best,
Justin

Rated 5 out of 5 stars

I am new to heySlim - GREAT SERVICE!

I am new to heySlim and have to say that I am very impressed so far with ALL aspects of their service. I am just ordering my second pen after receiving their “offer pen”. Prior to ordering I received a personal phone call from Dr Thushyan Ratnabalan asking me how I was following the switch recently from Mounjaro to Wygovy 1mg dose and discussed in great depth my medical history and medications. This kind of service is better that any other company/supplier I have used since commencing the use of weight loss medication some 17 months ago. I was yet again about to search for other “introductory offers”, however following this level and kind of personal service I will not be doing so! I am so pleased with the reassurance that Dr Balan gave me and had to share this experience with others considering using or switching to heySlim for their weight loss medication.

Regards and well done to the heySlim Team, Jeff

November 19, 2025
Unprompted review
Rated 5 out of 5 stars

One to one advice

Getting personal advice and discussion with qualified GP. Not just a tick box exercise that I had with my previous company. Felt listened to.Very impressed.

October 29, 2025

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