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Rated 5 out of 5 stars

After six weeks of taking Known Nutrition Collagen supplement I was able to stop wearing foundation as my skin had it's own lovely natural glow. My cheeks seem more plumped, my wrinkles less defined... See more

Rated 2 out of 5 stars

My partner ordered some gummies on a Friday, cancelled the order on the same day (6 mins after) and yet she still received the item on the Monday. Now, there is no response to emails/Fb messages/Inst... See more

Rated 1 out of 5 stars

Didn't like the pre workout gummies so tried to cancel but finding the cancellation process is impossible. Emailed them using the email or mentioned on the website but it bounced back as undeliverable... See more

Company replied

Rated 5 out of 5 stars

I’ve been taking Known Nutrition Advanced Collagen for 6 weeks now. It’s easily become part of my daily routine. The product tastes quite nice actually. I have tried 2 other collagen sachets in the pa... See more

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3.2

Average

TrustScore 3 out of 5

59 reviews

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Rated 1 out of 5 stars

Non existent cancellation process

Didn't like the pre workout gummies so tried to cancel but finding the cancellation process is impossible. Emailed them using the email or mentioned on the website but it bounced back as undeliverable. Very poor customer service

20 February 2026
Unprompted review
KN logo

Reply from KN

Hi there,

We’re sorry to hear you’ve had trouble cancelling. We’re not aware of any email issues on our end, so this may have been a technical error.

If you can please contact us again via our website with your full name and order number, we’ll get this resolved quickly. If your account is activated, you can also log in to manage or cancel your subscription at any time.

We’re more than happy to help once we have your details.

-Known Nutrition

Rated 4 out of 5 stars

I am using the high strength magnesium…

I am using the high strength magnesium gummies, which seem to be good quality and taste good, I am now on my second order. However I do agree that the customer service could be better. Processing and delivery of orders is a bit slow. On my first order I was disappointed that after placing the order, one product was found to be out of stock. I ended up paying delivery for only one product and I asked for a free delivery code so that I could order that missing product when it is back in stock, but the company said no.

7 September 2025
Unprompted review
KN logo

Reply from KN

Thank you for your review and for being a returning customer — we’re really pleased to hear you’re enjoying the high strength magnesium gummies and find them to be good quality.

We’re sorry to hear that you felt let down by the service on your first order. We aim to despatch orders promptly within our 3–5 working day timeframe, and in your case, your order was placed on a Thursday and picked the following day. Unfortunately, as we don’t operate over the weekend, we were only able to contact you on Monday once the stock issue was identified. As soon as we received your reply, we amended the order and shipped it immediately.

We completely understand how disappointing it is when an item is out of stock, and we always try to minimise such occurrences. While we aren’t able to offer free delivery codes in these situations as standard, we appreciate your feedback and will take it on board as we continue to improve our service.

Thanks again for your honest comments and for your continued support.

Rated 1 out of 5 stars

Havent gotten my order and its been…

Havent gotten my order and its been weeks. Ordered from Amazon.

26 June 2025
Unprompted review
KN logo

Reply from KN

Thank you for your review, and we're sorry to hear that you've experienced an issue with your order.

To assist you further, please contact us directly — either via the contact form on our website (be sure to include your full order details), or through your Amazon account if you placed your order there.

If your order was fulfilled by Amazon (FBA), their customer service team will need to assist you directly, as they handle the dispatch and support for those orders on our behalf.

However, if your order was fulfilled by us (FBM), we’d be happy to help you directly and resolve this as quickly as possible.

We’re here to support you — please don’t hesitate to get in touch.

Best regards,
Known Nutrition

Rated 2 out of 5 stars

Really poor service

Products were good. However, a really unreliable service. Repeatedly needed to chase deliveries, only to be told that either the delivery had failed (of which I'd had no prior notification), or my subscription being cancelled from their end without my instruction, or letting me know. Takes the convenience out of a subscription so will just be getting from the shop now.

4 November 2024
Unprompted review
Rated 5 out of 5 stars

Great company!!

Arrived really quickly (ordered Friday, arrived Monday!)

Three different products all taste great and fantastic customer service throughout

27 November 2023
Unprompted review
Rated 1 out of 5 stars

Absolutely horrendous

Absolutely horrendous! Tried 3 different emails, contacted on Facebook and raised a dispute through clearpay. Not one single reply and payment is being taken again tomorrow. DON'T BOTHER!!!

11 November 2023
Unprompted review
Rated 5 out of 5 stars

Fab!

Love the products! Am sure they are helping and making a difference to my well being and mobility.
Thank you 🤗

11 October 2023
Rated 2 out of 5 stars

Awful/No communication

My partner ordered some gummies on a Friday, cancelled the order on the same day (6 mins after) and yet she still received the item on the Monday. Now, there is no response to emails/Fb messages/Instagram for us to return the item for a refund. Will keep trying, but just so anyone else is aware - be 100% sure before buying, otherwise you might be stuck with the product. Also, the contact number on the invoice 0161 469 2711 does not work.

27 October 2023
Unprompted review
Rated 5 out of 5 stars

So good I came back

These gummy vits are so good, I’m back for more! Though I actually only turned to Known Nutrition when the brand I usually use was out of stock, I don’t foresee myself getting tired of their delicious products any time soon. Just call me a convert!

14 August 2023
Rated 1 out of 5 stars

Complete scam

Complete scam. Cancelled my order without telling me (I only found out when I went to track the parcel!) and won't answer my emails - all they wanted was my details to sell on!

4 May 2023
Unprompted review

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