GLP-1 and Psoriasis: What UK Patients Should Know (October 2026)

01 · The core answer

Does GLP-1 help with psoriasis?

No GLP-1 medicine is licensed to treat psoriasis in the UK, so it cannot be prescribed for that purpose.

Tirzepatide is the first treatment of its kind to activate two natural gut-hormone receptors at once: GIP and GLP-1.¹ Its licensed effect is on appetite, stomach emptying and insulin response. Whether that has knock-on effects for skin is a separate question that research has not settled.

Our related guides go further: see whether Mounjaro helps psoriasis in the UK and how Mounjaro and psoriasis may interact.

02 · Your decision

What should you do if you have psoriasis and want weight loss treatment?

Tell every clinician involved. Your dermatologist or GP manages psoriasis. A prescriber reviewing a weight-loss order needs your full medicine list, including any creams, tablets or injections for your skin.

If you meet the licensed criteria and want to explore private treatment, the Mounjaro pen starts at a standard £169.99 for the 2.5mg starter pen. A GPhC-registered prescriber reviews every consultation, and it is free. Our weight loss clinic explains the process.

Related guide: Mounjaro and hrv.

03 · What the research can tell you

What the research does and does not show

Studies of GLP-1 drugs in psoriasis are mostly small, observational or early-stage, and they often involve people who also have diabetes or obesity. That makes it hard to separate an effect on skin from the effect of weight loss.

The best-documented effect of tirzepatide is on weight. In the SURMOUNT-1 trial of 2,539 adults, people taking tirzepatide alongside diet and exercise lost on average 15% of their body weight on 5mg, 19.5% on 10mg and 20.9% on 15mg over 72 weeks, compared with 3.1% with lifestyle changes alone.² That trial did not study psoriasis, so these results say nothing about skin outcomes.

Treat any claim of dramatic skin clearance from a weight-loss injection with scepticism. Trial averages do not predict your own result.

04 · Weight and psoriasis care

Where weight management fits alongside psoriasis care

Weight management is a reasonable topic to raise with your dermatology team, because they look at your overall health, not only your skin. Any weight-loss medicine is used alongside a reduced-calorie diet and increased physical activity.¹ It is an addition to your existing care, never a replacement for your psoriasis treatment.

Do not stop biologics, topical treatments or tablets because you have started a GLP-1 medicine. Equally, do not start one hoping it will replace them. If your skin changes at any point, tell your specialist team.

Our guide to weekly treatment expectations with Mounjaro and psoriasis covers what to monitor week to week.

05 · Understanding GLP-1 medicines

Which GLP-1 medicines exist in the UK?

The class includes semaglutide (Wegovy and Ozempic), liraglutide and tirzepatide. Liraglutide, including Saxenda, is supplied at a concentration of 6mg/ml and is a daily injection, unlike once-weekly Mounjaro and Wegovy.

Mounjaro comes as a pre-filled multi-dose KwikPen in six strengths: 2.5mg, 5mg, 7.5mg, 10mg, 12.5mg and 15mg.¹ You can also compare the Wegovy pen if you are weighing options.

06 · Side effects and reporting

What if your skin changes after starting treatment?

Tell your prescriber and your dermatologist about any new or worsening skin symptom. Check the patient information leaflet for the listed side effects of your medicine.¹³

You can report any suspected side effect through the MHRA Yellow Card scheme.¹⁹ Do not self-diagnose from forums or social media.

07 · Serious side effects

Serious side effects: when to get help straight away

Serious side effects are uncommon but need urgent attention. Seek immediate medical help for: severe, persistent stomach pain that may spread to your back, with or without vomiting (possible pancreatitis); pain in the upper right abdomen, fever or yellowing of skin/eyes (possible gallbladder problems); or signs of a severe allergic reaction such as swelling of the face or throat and difficulty breathing. If you take insulin or a sulfonylurea alongside Mounjaro, watch for low blood sugar (shakiness, sweating, confusion) — your prescriber may need to adjust those medicines.¹

08 · Seeing a prescriber

How a prescriber review works for people with skin conditions

Payment is taken when you place the order; if the prescriber decides the treatment is not suitable, the order is refunded automatically in full. Unsuitable orders are refunded automatically. List your psoriasis treatments honestly in the questionnaire so the prescriber can judge suitability.

Ongoing monthly reviews are included, and repeat orders re-check suitability, with no auto-shipping. Orders placed by 3pm are dispatched the same day, with free next-day tracked delivery in discreet, temperature-controlled packaging.