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Numark Odour Insoles

Numark Odour Insoles

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  • 5. Supports cardiovascular risk reduction
  • 6. Over 22 million patients treated with semaglutide-based therapies since 2018

  • ✔️ Absorbs foot moisture using activated charcoal technology
  • ✔️ Neutralises odour-causing bacteria throughout the day
  • ✔️ Trimmable to fit most adult shoe sizes easily
  • ✔️ Discreet, non-medicated daily foot odour control
  • ✔️ Suitable for trainers, boots, and enclosed work shoes

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Are Odour Insoles the Answer to Smelly Feet?

 

Foot odour is more common than you might think. The NHS notes that feet have more sweat glands per square centimetre than almost anywhere else on the body, and when sweat combines with bacteria on the skin, it produces the unpleasant smell many people find embarrassing. Odour insoles offer a simple, affordable, and discreet way to tackle this problem at its source — right inside your shoe. Numark Odour Insoles are available from Cured Pharmacy for just £2.99, making them one of the most accessible foot odour solutions on the market. If you're also dealing with conditions like athlete's foot alongside foot odour, you might want to explore our range of athletes foot and fungal infection treatments for a more complete approach.

Foot odour — medically referred to as bromodosis — is largely caused by the breakdown of sweat by bacteria that naturally live on the skin. It's not a sign of poor hygiene; it can affect anyone, particularly those who are on their feet all day, wear enclosed footwear, or have naturally sweaty feet. Numark Odour Insoles are designed to sit inside your shoes and work continuously throughout the day, helping to keep things fresher without any fuss.

 

How Do Numark Odour Insoles Work?

 

The key ingredient in these insoles is activated charcoal. Activated charcoal has a highly porous surface structure, which gives it an enormous surface area relative to its size. This allows it to adsorb (bind to its surface) moisture, odour-causing compounds, and volatile organic molecules produced by bacteria on the skin.

  • Activated charcoal absorbs excess moisture from sweat inside the shoe
  • The porous structure traps odour-causing bacterial by-products
  • Continuous contact throughout the day means ongoing odour neutralisation
  • No sprays, powders, or topical applications needed — simply place and go

It's worth noting that the insoles don't kill bacteria directly. Instead, they reduce the conditions — warmth and moisture — that allow odour-producing bacteria to thrive. Think of them as a passive but effective barrier between your foot and a smelly shoe environment.

 

Who Should Consider Using Numark Odour Insoles?

 

These insoles are suitable for most adults who experience foot or shoe odour as part of their daily life. They're particularly useful if you wear enclosed shoes for long periods, work in physically demanding environments, or simply find that standard insoles don't do enough to keep odour at bay.

  • Adults with naturally sweaty or odorous feet (bromodosis)
  • People who wear trainers, work boots, or enclosed shoes daily
  • Those looking for a non-medicated, chemical-free odour solution
  • Anyone wanting a discreet, low-maintenance foot care option

They are not intended for use on broken, irritated, or damaged skin. If you have diabetes or a circulatory condition affecting your feet, speak to your GP or podiatrist before using any new insole product, as foot care requires extra caution in these cases.

 

How Do Numark Odour Insoles Compare to Other Foot Odour Solutions?

 

Feature Numark Odour Insoles Foot Deodorant Spray
Application method Place inside shoe — no daily effort Applied to feet or shoes daily
Active mechanism Activated charcoal adsorption Antimicrobial or antiperspirant agents
Duration of action Continuous while worn Several hours per application
Price (approx.) £2.99 £3.00–£7.00

 

Are Numark Odour Insoles Suitable for All Shoe Sizes and Types?

 

The insoles can be trimmed to fit a range of shoe sizes, making them versatile for most adults. They work best in enclosed footwear such as trainers, boots, and work shoes. They are not designed for open-toed sandals or flip-flops, where there is insufficient contact between the insole and the foot to make a meaningful difference. If you're managing broader foot health concerns alongside odour, our foot care collection includes a range of products that may complement these insoles.

Store the insoles in a cool, dry place when not in use to preserve their adsorptive capacity. Avoid exposing them to excessive moisture before use, as this can reduce their effectiveness.

This product is a medical device/consumer health product. Speak to your doctor or pharmacist before using if you have an underlying medical condition or are taking other medicines.

Numark Odour Insoles specifications
Treatment category Foot odour / Bromodosis
Mechanism of action Activated charcoal adsorption of moisture and odour-causing compounds
Effective for Foot and shoe odour control
Suitable for Adults with foot or shoe odour
Active ingredient Activated charcoal
UK classification General sale / Consumer health product
Preparation Insole (shoe insert)
Route of administration Topical (placed inside footwear)

Specifications of Numark Odour Insoles

 

What Are Numark Odour Insoles and What Are They Used For?

 

Numark Odour Insoles are deodorising shoe inserts designed to absorb moisture and neutralise unpleasant foot and shoe odour. They contain activated charcoal, a well-established odour-absorbing material used in a variety of consumer health and medical applications. The insoles are placed inside your shoes and work passively throughout the day, requiring no sprays, powders, or additional products.

Foot odour — known medically as bromodosis — occurs when sweat produced by the feet's numerous eccrine glands is broken down by naturally occurring skin bacteria, releasing volatile compounds with a characteristic unpleasant smell. The NHS recognises bromodosis as a common and manageable condition, and simple measures such as moisture-absorbing insoles are among the first-line self-care approaches recommended. These insoles are intended for adults and are not a treatment for underlying medical conditions such as hyperhidrosis or fungal infections.

 

What Do You Need to Know Before Using Numark Odour Insoles?

 

These insoles are generally well tolerated, but there are some important points to be aware of before use.

Do not use if:

  • You have broken, cracked, or damaged skin on your feet
  • You have a known allergy to any component of the insole material
  • You are a child — these insoles are intended for adult use only

Use with caution if:

  • You have diabetes — foot care requires particular attention and you should consult your GP or podiatrist before introducing new insole products
  • You have peripheral vascular disease or poor circulation affecting the feet
  • You have a current fungal foot infection such as athlete's foot — treat the infection first and consider our athlete's foot and fungal infection treatments

Drug interactions:

  • No known drug interactions — these insoles are not ingested or absorbed systemically

 

How Should You Use Numark Odour Insoles?

 

Using these insoles correctly ensures you get the most from them. Follow these steps for best results:

  1. Remove the insoles from the packaging and check the size guide printed on the insole
  2. If necessary, trim the insoles along the size guide lines to fit your shoe
  3. Place the insoles inside your shoes with the charcoal-treated side facing upwards (towards your foot)
  4. Wear your shoes as normal — the insoles work continuously while in use
  5. Remove the insoles periodically to allow them to air out, which can help extend their effectiveness
  6. Replace the insoles when they no longer control odour effectively
Indication Age Group Usage Frequency
Foot and shoe odour Adults One insole per shoe, trimmed to fit Daily use; replace as needed

 

What Are the Possible Side Effects of Numark Odour Insoles?

 

Numark Odour Insoles are a non-medicated consumer product and are not associated with systemic side effects. However, as with any product worn in contact with the skin, localised reactions are possible in a small number of users.

Common side effects:

  • None reported in typical use

Less common side effects:

  • Mild skin irritation or redness at the contact site
  • Allergic contact dermatitis (rare) — if you notice itching, redness, or a rash, discontinue use immediately
  • Discomfort if the insole is not trimmed correctly and creates pressure points inside the shoe

If you experience any unexpected skin reaction, stop using the insoles and consult your pharmacist or GP. If you're also managing excessive sweating more broadly, our excessive sweating treatments may offer additional support alongside these insoles.

 

How Should You Store Numark Odour Insoles?

 

  • Store in a cool, dry place away from direct sunlight and heat sources
  • Keep in the original packaging until ready to use, to preserve adsorptive capacity
  • Do not store in damp or humid environments, as moisture exposure before use can reduce effectiveness
  • Keep out of reach of children
  • Do not use after the expiry date printed on the packaging

Written and reviewed by our qualified team

Your safety and success are our highest priorities. Our medical team rigorously evaluates every product and piece of advice we provide, ensuring you receive only the most effective, science-backed solutions available.

Frequently Asked Questions

Where can I buy Numark Odour Insoles online in the UK?

You can buy Numark Odour Insoles directly from Cured Pharmacy, a GPhC-registered UK online pharmacy, for just £2.99. They are dispatched quickly and discreetly to your door. They may also be available in some high street pharmacies and supermarkets across the UK.

How do Numark Odour Insoles work in the shoe?

Numark Odour Insoles use activated charcoal, which has a highly porous surface that adsorbs moisture and the volatile compounds produced by odour-causing bacteria on the skin. They work passively and continuously while you wear your shoes, requiring no additional sprays or powders. The result is a fresher-smelling shoe environment throughout the day.

How do I use Numark Odour Insoles step by step?

Remove the insoles from the pack and use the size guide to trim them to fit your shoe if needed. Place them inside your shoes with the charcoal side facing upwards towards your foot. Wear your shoes as normal and replace the insoles when they no longer control odour effectively.

How long do Numark Odour Insoles last before needing replacement?

The lifespan of the insoles depends on how frequently you wear them and how active you are, but most users find they remain effective for several weeks of regular daily use. Once you notice that odour is returning despite the insoles being in place, it is time to replace them. Airing them out between uses can help extend their effectiveness.

Are Numark Odour Insoles suitable for people with diabetes?

People with diabetes need to take extra care with their feet, as reduced sensation and circulation can make foot problems harder to detect. It is advisable to speak to your GP or podiatrist before using any new insole product if you have diabetes. The NHS provides detailed guidance on diabetic foot care that is worth reviewing.

Can Numark Odour Insoles be used in any type of shoe?

The insoles can be trimmed to fit most enclosed shoe types, including trainers, work boots, and casual shoes. They are not suitable for open-toed sandals or flip-flops, where there is insufficient contact between the insole and the foot. Always trim carefully along the size guide lines to avoid creating uncomfortable pressure points.

What is the best time to put Numark Odour Insoles in my shoes?

Place the insoles in your shoes before you put them on at the start of the day, so they are in position and ready to work from the moment you begin wearing your footwear. If you wear the same pair of shoes every day, leaving the insoles in place overnight is fine. Removing them occasionally to air out can help maintain their performance.

Who is eligible to use Numark Odour Insoles?

These insoles are suitable for most adults experiencing foot or shoe odour. They are not recommended for children, or for anyone with broken or damaged skin on their feet. If you have an underlying foot condition such as a fungal infection, it is worth treating that first — our athlete's foot and fungal infection treatments can help.

What are the alternatives to Numark Odour Insoles for smelly feet?

Alternatives include foot deodorant sprays, antibacterial foot washes, medicated foot powders, and other branded deodorising insoles such as those from Scholl. Treating an underlying fungal infection or managing excessive sweating may also significantly reduce foot odour. Speak to your pharmacist if self-care measures are not working after a few weeks.

Can Numark Odour Insoles help with excessive sweating of the feet?

The activated charcoal in the insoles absorbs moisture associated with sweaty feet, which can help reduce odour caused by sweat. However, if you experience significant excessive sweating — a condition known as hyperhidrosis — you may need additional treatments beyond insoles. Our excessive sweating range includes products that may offer further support.

Do Numark Odour Insoles have any side effects?

Numark Odour Insoles are a non-medicated product and are not associated with systemic side effects. In rare cases, some users may experience mild skin irritation or an allergic contact reaction at the site of contact. If you notice redness, itching, or a rash, stop using the insoles and consult your pharmacist or GP.

How should I store Numark Odour Insoles when not in use?

Store unused insoles in their original packaging in a cool, dry place away from direct sunlight and heat. Avoid storing them in damp environments before use, as moisture exposure can reduce the adsorptive capacity of the activated charcoal. Keep them out of reach of children at all times.

Can I use Numark Odour Insoles alongside other foot care products?

Yes, these insoles can generally be used alongside other foot care products such as foot creams, antifungal treatments, or foot sprays. There are no known interactions since the insoles are not absorbed into the body. If you are using medicated insoles prescribed by a podiatrist, check with them before adding additional insoles.

What are the latest recommendations for managing foot odour?

The NHS recommends a combination of good foot hygiene — washing feet daily with soap and water, drying thoroughly between the toes, and changing socks regularly — alongside moisture-absorbing measures such as deodorising insoles. Wearing breathable footwear and rotating shoes to allow them to dry out between uses are also widely recommended self-care steps. Odour insoles are a practical complement to these hygiene habits.

How long can I keep using Numark Odour Insoles?

You can continue using Numark Odour Insoles for as long as you need them, replacing each pair when they are no longer effective. There is no maximum duration of use for healthy adults. If foot odour persists despite consistent use of insoles and good foot hygiene, speak to your pharmacist or GP, as an underlying condition such as a fungal infection may need to be addressed.

How Should You Use Numark Odour Insoles?

Using Numark Odour Insoles correctly is straightforward, but a few simple steps will help you get the most out of them. Before placing the insoles in your shoes, check the size guide printed on the insole itself and trim carefully along the marked lines if your shoe size requires it — a poorly fitted insole can cause discomfort or pressure points inside the shoe.

What Is the Correct Dose of Numark Odour Insoles?

These insoles are not a medicine and do not have a dose in the traditional sense. The correct usage is one insole per shoe, worn during normal daily activity. There is no benefit to using more than one insole per shoe, and doing so may cause discomfort.

When Is the Best Time to Use Numark Odour Insoles?

Place the insoles in your shoes at the start of the day before you put them on, so they are ready to work from the moment you begin wearing your footwear. If you wear the same pair of shoes every day, it is perfectly fine to leave the insoles in place overnight. Removing them occasionally and leaving them in a well-ventilated area can help them air out and maintain their odour-absorbing capacity for longer.

For best results, combine the insoles with good foot hygiene — washing your feet daily, drying thoroughly between the toes, and changing socks regularly. The NHS recommends these hygiene habits as the foundation of managing foot odour effectively.

How Long Can You Use Numark Odour Insoles For?

There is no set maximum duration of use for these insoles in healthy adults. You can continue using them for as long as they remain effective and you find them beneficial. Replace each pair when you notice that odour is returning despite the insoles being in place — this is a sign that the activated charcoal has reached its adsorptive capacity.

If foot odour persists despite regular use of the insoles alongside good foot hygiene, it is worth speaking to your pharmacist or GP. An underlying condition such as a fungal infection or hyperhidrosis may be contributing to the problem and may require specific treatment.

Do not exceed the recommended dose. If in doubt, speak to your pharmacist.

What Are the Most Common Side Effects of Numark Odour Insoles?

Numark Odour Insoles are a non-medicated consumer product and are not associated with systemic side effects. Because they are not ingested or absorbed into the bloodstream, the risk of side effects is very low. The vast majority of users experience no adverse effects at all during normal use.

  • No common side effects reported in typical use
  • No systemic effects — the insoles are not absorbed into the body

What Are the Less Common Side Effects of Numark Odour Insoles?

In a small number of users, localised reactions at the site of contact between the insole and the foot have been reported. These are uncommon and typically resolve quickly once use is stopped.

  • Mild skin irritation or redness on the sole of the foot
  • Itching or a prickling sensation at the contact site
  • Allergic contact dermatitis — a localised rash caused by sensitivity to a component of the insole material
  • Discomfort or pressure points if the insole has not been trimmed correctly to fit the shoe

What Are the Serious Side Effects of Numark Odour Insoles?

Serious side effects from using shoe insoles are extremely rare. However, if you develop a widespread skin reaction, significant swelling, or any signs of a severe allergic reaction — such as difficulty breathing, swelling of the face or throat, or a rapidly spreading rash — stop using the product immediately and seek urgent medical attention. This type of reaction is very unlikely but should be treated as a medical emergency if it occurs.

People with diabetes or peripheral vascular disease should be particularly vigilant about any changes to the skin on their feet, as reduced sensation may mean that irritation goes unnoticed for longer than it would in someone without these conditions.

What Should You Do If You Experience Side Effects?

If you notice any skin irritation, redness, or rash after using Numark Odour Insoles, remove the insoles from your shoes and do not continue using them. Wash the affected area gently with mild soap and water and allow the skin to recover. If the reaction does not improve within a day or two, or if it worsens, consult your pharmacist or GP for advice.

You can also report suspected side effects from consumer health products to the MHRA via the Yellow Card scheme at yellowcard.mhra.gov.uk. This helps the MHRA monitor the safety of products available in the UK.

Can Numark Odour Insoles Interact With Other Products?

Because Numark Odour Insoles are not ingested or absorbed systemically, there are no known interactions with medicines or other health products. They can generally be used alongside topical foot creams, antifungal treatments, and foot sprays without issue. If you are using medicated insoles prescribed by a podiatrist or orthotist, check with them before adding additional insoles to your footwear, as layering insoles may alter the fit and function of your prescribed device.

If in doubt about whether these insoles are suitable for you alongside any existing treatment, your pharmacist is always a good first point of contact for advice.

If you are concerned about any side effects, contact your pharmacist or GP immediately.

Patient Information Leaflet

Important - Before taking any medication, it is always important to read the Patient Information Leaflet (PIL)

Written and reviewed by our qualified team

GPhC Number: 2233073
Tarun Kumar

Reviewed by:

Tarun Kumar

Superintendent/ Clinical Lead

📖 Find out more about our team of medical content authors and how we ensure the accuracy of our content with our content guidelines.

Content last updated: 31 Mar 2025

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