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Independently checked by Monj

heySlim Discount Codes UK

There is no active heySlim discount code tracked by Monj at the moment. A code is only worth having if it beats the price elsewhere, so the quickest route to the lowest total today is the Monj discount price list, which ranks every verified pharmacy by checkout total with current discounts already applied.

  • Checked by Nick Johnson, Monj
  • Last checked 11 Sep 2026 at 8:28am
  • Monj is independent of heySlim

What to do while there is no heySlim code

  1. Start with the total, not the code. A discount code only matters if the final checkout price beats the alternatives, and a pharmacy with no code can still be cheaper than one with a large one.
  2. Compare the current prices. The Monj discount price list ranks verified pharmacies by total cost per dose, with working discounts already applied and delivery included.
  3. Check the checkout before you pay. Wherever you order, confirm the price on the final screen. Consultation outcomes are clinical decisions and no code changes them.

Monj is independent. Monj is not part of heySlim and does not prescribe, give medical advice or fulfil orders. This page reflects what Monj can verify publicly, and it is updated when that changes. See the independence statement.

Independent checks on heySlim

Monj Verified

Monj Verified

Monj checks the code wording, the provider’s regulator record and the checkout total, and shows when this page was last reviewed.

How verification worksMonj page
heySlim supportFor order, consultation, account or delivery queries, contact heySlim directly through its website. To flag a correction or a changed offer on this page, use the Monj contact page.

How Monj checks this page. Monj checks the public code, the regulator link and the checkout wording where visible. Offers change, so always review the final total before payment and make sure the code matches your order type.

About heySlim

heySlim is a UK online weight-management clinic whose prescribers review each request through an online consultation before anything is dispatched, in line with GPhC guidance for online supply that requires independent verification and two-way communication for weight-management medicines. It publishes its prices up front, and approved orders are sent by tracked UK delivery in plain packaging.

No code listedMonj has no active heySlim code to verify at present.
Transparent pricingPrices are shown before you start the consultation.
Clinical review still appliesA discount code does not guarantee prescribing, approval or supply.

heySlim regulation and provider details

  • General Pharmaceutical Council: dispensing pharmacy premises registration 9012739.
  • Delivery: tracked UK delivery in plain packaging, as stated by heySlim.

Before you pay

  • Final total: confirm the £30 discount is in the total before payment.
  • Clinical review: approval, prescribing and supply are assessed separately from price.
  • Real price: include treatment, delivery and any extras before deciding; Monj’s price lists show the checkout total for each dose.

Eligibility. This heySlim code is for eligible first orders only. Prices, codes and eligibility wording can change, and prescription-only treatments always depend on consultation, eligibility checks and clinical review.

heySlim discount code FAQ

Is there a heySlim discount code?

Monj has no active heySlim discount code to list at the moment. Codes come and go, and Monj only publishes one it can verify publicly.

How do I get the lowest price without a code?

Compare the checkout total rather than the headline discount. The Monj discount price list ranks verified pharmacies by total price per dose with working discounts already applied and delivery included.

Will a heySlim code be listed again?

If a verifiable public offer appears, this page is updated. The last review date is shown at the top of the page.

Does a heySlim code guarantee approval?

No. A code only affects the price. Prescription-only treatments still depend on consultation, eligibility checks and clinical review.

Is Monj part of heySlim?

No. Monj is an independent price information service operated by Medstack Ltd. It lists heySlim’s public code and regulator details so you can compare costs before payment.

Monj pledge

We give 20% of annual profits to charitable causes.

Monj exists to help people compare more clearly. As part of that, Medstack Ltd pledges at least 20% of yearly profits to charity.

Read our pledge

Monj is an independent price information service operated by Medstack Ltd. It does not sell, prescribe, supply or dispense medicines and does not give medical advice. Discount codes are supplied by the pharmacy and can change without notice; always confirm the final price at checkout.

Sources referenced on this page

Monj is an independent price comparison index operated by Medstack Ltd. We are not a pharmacy and we do not sell, prescribe, supply or dispense medicines. Listings are ranked strictly by the lowest total patient price, with alphabetical order used to break ties. No pharmacy can pay for placement, ranking or badges. Some outbound links earn a referral commission, and this never affects position or inclusion. Read the full independence statement.