Choosing Generic Vs Branded Duac


Generic medicines contain the same active ingredient and are equally effective and medically equivalent as the branded products but are available at a lower price. Generic manufacturers have to demonstrate that they are medically identical to the branded product - i.e. they offer the same quality, strength, stability and effectiveness.

Generic medicines are required meet the same standards of safety, quality and efficacy as the branded medication. To receive market approval from the European Medicines Agency and MHRA, a generic medicine must be 'bioequivalent' to the originator product.


Acne Treatment

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What is Duac?

What Is Duac?

Duac is a treatment for mild to moderate acne. It comes in gel form and contains two main ingredients - clindamycin, an antibiotic; and benzoyl peroxide, an antibacterial and keratolytic (peeling) agent, which reduces acne causing bacteria and reduces blackheads and whiteheads.

How do I use Duac?

Gently wash the affected area with a mild cleanser and make sure the skin is completely dry afterward. Apply a small amount of gel to the entire affected area/s each evening and rub in. If the gel does not easily rub into the skin then you are using too much. You should wash your hands after each application. Allow the gel to dry on the skin, do not wash it off.

How long will it take to work?

You would expect to see improvement of your acne after 2-5 weeks of daily use, with the maximum benefit being seen in around 8-12 weeks. Treatment should only be continued up to a maximum of 12 weeks.

How do I store Duac?

Before purchase, Duac will be stored in the refrigerator. However, once you receive the item it can be stored out of the fridge, up to 25°C. Duac must be discarded after 2 months.

Side Effects

Side Effects

During the initial few weeks of treatment, most people will experience an increase in skin peeling and reddening of the affected area. This should lessen over time. Benzoyl Peroxide, one of the main ingredients in Duac, increases your sensitivity to the sun and sunlamps, so excessive or prolonged sun exposure while using Duac should be avoided.

Information Leaflet

Patient Information Leaflet

Always read the patient information leaflet before commencing treatment.

Authored 02 April 2020 by Dr Clare Morrison, Reviewed 02 April 2020 by Liyya Patel, Siobhan Titre Last updated 02 April 2020

Recent Duac Reviews

4.5 / 5

Based on 24 independent customer reviews taken by Feefo (see all Reviews).

By Catharine on 21 March 2022


Very good advice and quick responses


Very good excellent service and quick delivery

"Simple, fast, confidential"
By Shanice on 06 June 2019


I’ve been prescribed this by a doctor, it’s easy to use, and doesn’t have a weird smell like other treatments such as Zineryt It’s very effective at treating and drying up acne, and preventing further acne developing It does however stain materials, but this is clearly stated on the packaging


It’s really easy to order, the reason I go through MedExpress rather than my doctors is how easy it is, the online consultation is very easy to follow. Other websites before have asked for photos of my acne, which is embarrassing and not something I’m readily able to provide as I wear makeup during the day. The delivery was fast, and I was very happy with the service received.

"First rate!"
By Stephen (Kent) on 18 December 2017


Quick and efficient order process and reasonably priced.


The service was first rate; easy to use, straight forward and very quick delivery. Will certainly use it again.

By Ekaterina on 24 November 2017


Quick delivery, pleased customer :)


delivery was very quick, very pleased.

"Great service and worth the money!"
By Rachel (London) on 25 April 2017


Duac cream has been a miracle in a tube. Give suffered with hormonal acne for a year and this just clears it right up. It'll take 5-7 days for your skin to get used to it, it'll feel tickly/itchy the first few days. I've found it is helping to reduce my oily complextion although not sure if this is just while using it. Remember to keep it refrigerated as it's an antibiotic and it's best used at night.


I found the medicine I needed and I was confident I was being asked the right questions to check my suitability for the prescription. It arrived within a few days and I could see it had been authorised by a pharmacist.

Read More Duac Reviews

Discreet Service

Plain packaging

Option to collect from
your local Post Office™

local branches

How our service works

It’s quick, easy, and safe to order from MedExpress — your fully regulated, London, United Kingdom based online pharmacy.

Free online

Start a free 2 minutes online consultation with simple questions about your health.


Our UK medical team will then recommend a treatment and issue a free prescription.


Your treatment will be sent direct from our London pharmacy in discreet packaging.

Watch our video to find out more

Our qualified team

All our doctors and pharmacists are based in the UK and are registered with the General Medical Council and General Pharmaceutical Council.

Dr Clare Morrison

General Practitioner (Prescriber)
GMC: 3441561

Avnish Patel

GPhC: 2079950

Rukhsana Deshmukh

Superintendent Pharmacist
GPhC: 2070765