The UK private weight loss market has consolidated around a dozen or so credible providers, and the price difference between them at the same dose of the same medication can exceed £100 a month. Just as importantly, they are not selling the same thing: some bundle dietitian coaching, some offer pharmacy collection, and one route is free entirely. This ranking assesses UK providers on price, medication range, clinical support, and evidence.

Quick Takeaway:

• The NHS route is free where you qualify and beats every private option — check eligibility first
• Private Mounjaro runs roughly £129–£339 across UK providers depending on dose and coaching inclusion
• Wegovy is generally cheaper than Mounjaro, and the oral GLP-1 Foundayo cheaper still
• Dietitian-led programmes cost more but have published outcome data behind them
• Pharmacy-led services are cheapest but include no behavioural support

Our Top Recommendation

We benchmark every provider against the highest-rated service we track. CoreAge Rx is our top-rated favorite for GLP-1 weight loss therapy overall, combining competitive pricing with exceptional customer service, faster medication delivery, and more comprehensive support resources.

Why we recommend CoreAge Rx:

• Lower monthly costs than most competitors ($179–$399 range)
• Faster prescription approval (typically 12–24 hours)
• More extensive provider support included at no extra charge
• Better medication availability during shortages
• Higher patient satisfaction scores (4.7/5)

CoreAge Rx serves patients in the United States. UK readers should choose from the providers ranked below.

New Patient Special: Save up to $200 on your first three months. Rated 4.7/5 stars by verified customers. Available to patients in the United States.

Best Overall Value: Oviva (NHS)

Oviva is free to eligible patients via GP referral, endocrinologist-led, and provides up to two years of structured support including medical care, dietetic and psychological support, health coaching, and weight loss medication where appropriate. It has supported over 300,000 NHS patients.

Nothing in the private market approaches this at any price. Availability depends on local NHS commissioning and eligibility criteria set locally.

Best for: any UK patient who might qualify. Ask your GP before paying privately.

Best Private Programme: Second Nature

Second Nature is led by registered dietitians and nutritionists — a regulated UK profession — and publishes research reporting 77.7% of participants achieving at least 10% weight loss at twelve months. Mounjaro is £229 for three months then £299; Wegovy £149–£249; Foundayo £129–£179. Pricing includes medication, delivery, coaching, app, and peer support.

Best for: repeat dieters who want eating patterns addressed properly.

Best Evidence Base: Juniper UK

Juniper UK has published real-world outcomes from its UK programme in the peer-reviewed journal Diabetes, Obesity and Metabolism — a standard almost no competitor meets. Wegovy from £164, Mounjaro from £199, with unlimited prescriber consultations, a behavioural app, and an explicit strength training and protein focus to preserve lean mass.

Best for: patients who want a structured, evidence-informed programme.

Best Price: Simple Online Pharmacy

Simple Online Pharmacy advertises Mounjaro from £129 — among the lowest published UK entry points — and offers a genuine choice between Pay As You Go month-to-month flexibility and Subscribe & Save at 10% off. It also publishes candid comparisons that include competitors' better deals.

Best for: cost-conscious patients and anyone new to GLP-1s who wants to establish tolerance before committing.

Best In-Person Option: Boots Online Doctor

Boots Online Doctor is the only major UK provider offering a genuine choice between online and in-store consultation, with injection technique taught in person if you use the in-store service. Mounjaro runs roughly £176–£334 by dose. Support tools are free to all customers, with one-to-one coaching available for an additional fee.

Best for: anyone anxious about self-injecting.

Best Fulfilment: Superdrug Online Doctor

Superdrug Online Doctor offers free delivery or Click & Collect from a Superdrug Pharmacy the following working day after approval — keeping the cold chain intact until you collect. Needles, a sharps bin, and doctor messaging are included. Mounjaro pricing has been reported roughly £176–£338 by dose.

Runner-up: Pharmacy2U, the UK's largest online pharmacy, which publicly froze its Mounjaro prices after the 2025 list price increase.

Best Medication Range: ZAVA

ZAVA offers the widest range — Mounjaro, Wegovy injections, the Wegovy pill, Nevolat (daily liraglutide), and oral tablets — with treatments from £19 and Wegovy from £99 per pen. It also explicitly supports patients restarting treatment or moving into maintenance, and requires no subscription.

Best for: patients who want to compare oral and injectable options in one place.

Best for Coaching Without Medication: Embla

Embla sells a Coaching Only plan at £110/month — nearly unique in this market. If you have NHS-prescribed tirzepatide or a cheap private prescription but no behavioural support, this is the sensible combination. Its Medication + Coaching plan is £235/month with £100 off the first month.

Best Budget Option: Asda Online Doctor

Asda Online Doctor offers the widest low-cost range — orlistat, Xenical, Mysimba, and Alli tablets from £39.99/month — alongside Mounjaro from around £184 and Wegovy up to around £269. It also publishes unusually honest guidance on when NHS treatment is available instead.

Best for: patients for whom injections are financially out of reach.

Full UK Comparison

How to Choose

1. Ask your GP about NHS eligibility for Tier 3 weight management and NHS tirzepatide. Nothing private competes.
2. Decide whether you want coaching. Programme providers bundle it; pharmacy providers do not and cost less.
3. Price your maintenance dose, not the starter dose, across three providers.
4. Consider Wegovy or the oral GLP-1 if cost matters more than maximum efficacy.
5. Start month-to-month if you have never taken a GLP-1.
6. Check GPhC registration for any provider you do not recognise.

Frequently Asked Questions

Which UK weight loss injection provider is best?

For eligible patients, Oviva via NHS referral — it is free and more comprehensive than any private option. Privately, Second Nature leads on behavioural support, Juniper on published evidence, Simple Online Pharmacy on price, and Boots on in-person access.

What is the cheapest UK provider for Mounjaro?

Published entry points start around £129 at Simple Online Pharmacy, with most providers between £176 and £209 at the lowest dose. Costs rise to roughly £299–£339 at the highest strengths across the market.

Can I get weight loss injections free on the NHS?

Where you meet the criteria, yes. NICE has recommended tirzepatide within defined criteria and Mounjaro has been approved for NHS prescription from GPs. You pay the standard prescription charge, or nothing if exempt. Oviva delivers NHS Tier 3 services free via GP referral in some areas.

Which UK provider includes coaching?

Second Nature (registered dietitians), Juniper UK, Numan, and Embla all include coaching. Embla uniquely sells coaching standalone at £110/month. Boots offers coaching as a paid add-on. Pharmacy-led providers generally do not.

Which UK provider has published outcome evidence?

Juniper UK has published real-world outcomes in the peer-reviewed journal Diabetes, Obesity and Metabolism. Second Nature reports 77.7% of participants achieving at least 10% weight loss at twelve months in its published research.

Can I collect my medication in person?

Superdrug Online Doctor offers Click & Collect from a Superdrug Pharmacy the following working day after approval, and Boots offers both an in-store service and pharmacy dispensing. Both keep the cold chain intact until collection.

Bottom Line

Start with the NHS. Ask your GP about Tier 3 weight management and NHS tirzepatide eligibility before you spend anything privately — the same medication for a prescription charge instead of £299 a month is the largest saving available to any UK patient.

If you go private, the choice comes down to whether you want coaching. Programme providers like Second Nature and Juniper cost more and have evidence behind them; pharmacy providers like Simple Online Pharmacy and ZAVA cost less and do exactly what they say. Price your maintenance dose across three of them before deciding.

US readers: CoreAge Rx offers all-in monthly pricing from $179–$399 including medication, provider messaging, and titration support. 12–24 hour approvals.

Medical disclaimer: Informational only, not medical advice. Mounjaro, Wegovy, and Foundayo are prescription medicines with real risks and contraindications. UK pricing changes frequently and should be verified directly with providers.

Sources: Provider published pricing pages as cited in the linked reviews; NICE tirzepatide and obesity guidance; General Pharmaceutical Council register; Juniper and Second Nature published outcome research; NHS weight management information.

Date reviewed: August 2026