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Dettol Liquid Antiseptic 500ml

Dettol Liquid Antiseptic 500ml

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  • ✔️ Kills bacteria on minor cuts, grazes, and abrasions
  • ✔️ Contains chloroxylenol 4.8% w/v for proven antiseptic action
  • ✔️ Helps prevent wound infection when applied promptly
  • ✔️ Suitable for adults and children over two years
  • ✔️ 500ml bottle provides long-lasting household first aid supply

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What Is Dettol Liquid Antiseptic and How Does It Help?

 

Whether you've caught a graze on a garden wall or nicked your finger in the kitchen, having a reliable antiseptic to hand matters. Dettol liquid antiseptic has been a staple of UK medicine cabinets for decades — and for good reason. This 500ml bottle contains chloroxylenol 4.8% w/v, a well-established antimicrobial agent that helps cleanse minor wounds and reduce the risk of infection. At just £3.99, it's one of the most accessible first aid essentials you can keep at home.

Minor cuts, grazes, and skin abrasions are everyday occurrences. Left uncleaned, even small wounds can become infected — particularly in children who are prone to picking up scrapes outdoors. The NHS advises cleaning wounds promptly with clean water or an antiseptic solution to reduce bacterial contamination and support healing.

 

How Does Dettol Liquid Antiseptic Work on Bacteria?

 

The active ingredient, chloroxylenol, works by targeting and disrupting the outer cell membranes of bacteria. Once the membrane is compromised, the bacterial cell can no longer function and dies. This mechanism makes it effective against a broad range of gram-positive and gram-negative bacteria commonly found on skin surfaces.

  • Chloroxylenol penetrates bacterial cell walls
  • Disrupts membrane integrity, causing cell death
  • Reduces bacterial load on the wound surface
  • Helps create conditions that support natural healing

It's worth noting that Dettol liquid antiseptic is not a treatment for deep or infected wounds — it's designed for surface-level cleansing of minor injuries. If a wound shows signs of spreading redness, warmth, swelling, or pus, you should seek medical advice promptly.

 

Who Should Use Dettol Liquid Antiseptic?

 

This product is suitable for most adults and older children who need a straightforward antiseptic for everyday minor injuries. It's particularly useful for households with active children, people who work outdoors, or anyone who wants a reliable wound-cleansing option at home.

  • Adults with minor cuts, grazes, or skin abrasions
  • Parents managing children's everyday scrapes
  • People working in environments with higher injury risk (e.g. gardening, DIY)
  • Travellers wanting a compact antiseptic for their kit

It is not suitable for use on deep wounds, puncture injuries, animal bites, or burns. These require professional medical assessment. Always dilute before applying to skin — never use undiluted.

 

How Does Dettol Liquid Antiseptic Compare to Other Antiseptics?

 

Feature Dettol Liquid Antiseptic 500ml Savlon Antiseptic Liquid
Active ingredient Chloroxylenol 4.8% w/v Chlorhexidine gluconate + cetrimide
Suitable for skin use Yes (diluted) Yes (diluted)
Requires dilution Yes — always dilute before skin contact Yes — dilute for wound cleansing
UK availability Widely available OTC Widely available OTC

 

Is Dettol Liquid Antiseptic Safe to Store at Home?

 

Yes — provided you follow basic storage guidelines. Keep the bottle tightly sealed, stored below 25°C, away from direct sunlight and out of reach of children. The Dettol liquid antiseptic solution should never be stored in food or drink containers, and you should always check the expiry date before use. If the liquid has changed colour or smell significantly, do not use it.

If you're building a home first aid kit, pairing this antiseptic with appropriate wound dressings and pain relief options makes good sense. A well-stocked kit means you're prepared for the minor mishaps that happen in any household.

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

Dettol Liquid Antiseptic 500ml specifications
Treatment category First aid / wound cleansing
Active ingredient Chloroxylenol 4.8% w/v
Mechanism of action Disrupts bacterial cell membranes, reducing bacterial load on skin
Suitable for Adults and children (diluted use); minor cuts, grazes, abrasions
Pack size 500ml
UK classification General Sale List (GSL)
Drug class Topical antiseptic
Preparation Liquid solution
Route of administration Topical (external use only)

Specifications of Dettol Liquid Antiseptic 500ml

 

What Is Dettol Liquid Antiseptic and What Is It Used For?

 

Dettol Liquid Antiseptic 500ml is a topical antiseptic solution containing chloroxylenol 4.8% w/v. It is used to cleanse minor cuts, grazes, and skin abrasions to help prevent bacterial infection. It can also be used as a general skin antiseptic — for example, before minor procedures or when clean water is not immediately available. It is for external use only and must always be diluted before application to skin.

 

What Do You Need to Know Before Using Dettol Liquid Antiseptic?

 

Before using this product, read the following carefully. It is not suitable for everyone, and certain situations require extra caution.

Do not use if:

  • You are allergic to chloroxylenol or any other ingredient in the product
  • The wound is deep, a puncture wound, or caused by an animal bite
  • The affected area shows signs of serious infection (spreading redness, pus, fever)
  • You intend to use it undiluted on skin — this can cause chemical burns
  • You are applying it near the eyes, ears, or mouth

Use with caution if:

  • You have sensitive or broken skin conditions such as eczema or psoriasis
  • You are using it on young children or infants — seek pharmacist advice first
  • You are pregnant or breastfeeding — consult your GP or midwife before use

Known interactions:

  • No significant drug interactions are currently documented for topical chloroxylenol
  • Avoid combining with other topical antiseptics on the same wound area without professional guidance

 

How Should You Use Dettol Liquid Antiseptic?

 

Always dilute Dettol liquid antiseptic before applying it to skin. The standard dilution for wound cleansing is one part Dettol to 20 parts water, which produces the characteristic milky appearance that confirms correct dilution. Never apply the concentrate directly to skin or wounds.

  1. Wash your hands thoroughly before treating any wound
  2. Measure one part Dettol and add to 20 parts clean, lukewarm water
  3. Stir gently — the solution should turn milky white
  4. Apply the diluted solution to the wound using clean cotton wool or a sterile gauze pad
  5. Gently clean the wound area, removing any visible dirt or debris
  6. Allow the area to air dry or pat dry with a clean cloth
  7. Cover with an appropriate wound dressing if needed
Use Age Group Dilution Frequency
Minor wound cleansing Adults & children over 2 years 1 part Dettol : 20 parts water As needed
General skin antisepsis Adults 1 part Dettol : 20 parts water As needed
Children under 2 years Infants Seek pharmacist advice before use Not recommended without guidance

If you're also managing a wound that requires additional support, our skin care range includes products to support skin recovery after minor injuries.

 

What Are the Possible Side Effects of Dettol Liquid Antiseptic?

 

Side effects are uncommon when the product is used correctly and at the recommended dilution. However, as with any topical product, reactions can occur — particularly in people with sensitive skin.

Common side effects:

  • Mild skin irritation or stinging at the application site
  • Temporary redness around the wound area
  • Slight dryness of the surrounding skin with repeated use

Less common side effects:

  • Allergic contact dermatitis (rash, itching, blistering)
  • Skin sensitisation with prolonged or repeated exposure
  • Chemical burns if used undiluted — this is a misuse effect, not a therapeutic one

If you experience any signs of a serious allergic reaction — including swelling of the face, lips, or throat, difficulty breathing, or widespread rash — stop use immediately and call 999 or go to your nearest A&E.

 

How Should You Store Dettol Liquid Antiseptic?

 

Correct storage keeps the product effective and safe for the whole household. Follow these guidelines:

  • Store below 25°C in a cool, dry place
  • Keep away from direct sunlight and heat sources
  • Always replace the cap tightly after use
  • Keep out of reach and sight of children and pets
  • Do not transfer to food or drink containers
  • Check the expiry date before each use — do not use if expired
  • Dispose of unused product responsibly — contact your local pharmacy for guidance on disposal

For a complete home first aid setup, explore our creams and ointments range, which includes products for soothing and protecting skin after minor injuries.

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 Dettol Liquid Antiseptic 500ml online in the UK?

You can buy Dettol Liquid Antiseptic 500ml from Cured Pharmacy online for just £3.99, with fast UK delivery straight to your door. It's a General Sale List (GSL) medicine, so no prescription is needed. It's also available from most UK supermarkets and high street pharmacies.

How does Dettol liquid antiseptic work in the body?

Dettol liquid antiseptic works topically — it doesn't enter the body. Its active ingredient, chloroxylenol 4.8% w/v, disrupts the outer cell membranes of bacteria on the skin surface, causing them to die. This reduces the bacterial load around a wound and helps prevent infection from taking hold.

How do I use Dettol Liquid Antiseptic step by step?

Always dilute one part Dettol in 20 parts clean water before applying to skin — the solution should turn milky white when correctly mixed. Apply gently to the wound using clean cotton wool or sterile gauze, then allow to dry before covering with a dressing. Never apply the undiluted liquid directly to skin, as this can cause irritation or burns.

What is the correct dilution for Dettol antiseptic on skin?

The standard recommended dilution for skin use is 1 part Dettol to 20 parts water. This is the ratio specified for wound cleansing and general skin antisepsis. If the solution does not turn milky, it may not be diluted enough — add more water and check again before applying.

What are the side effects of Dettol liquid antiseptic?

When used as directed, side effects are uncommon but can include mild skin irritation, temporary redness, or stinging at the application site. Less commonly, some people may experience allergic contact dermatitis, particularly with repeated use. If you develop a rash, swelling, or difficulty breathing, stop use immediately and seek medical advice.

Can I use Dettol antiseptic on children?

Dettol liquid antiseptic can be used on children over 2 years when diluted correctly at the standard 1:20 ratio. For children under 2 years or infants, you should speak to a pharmacist or GP before use. Always keep the bottle out of reach of children and supervise application carefully.

Who is eligible to use Dettol Liquid Antiseptic?

Most adults and children over 2 years can use Dettol liquid antiseptic for minor wound cleansing. It is not suitable for people with known allergies to chloroxylenol, those with deep or seriously infected wounds, or for use near the eyes, ears, or mouth. Pregnant or breastfeeding individuals should consult their GP or midwife before use.

Can I use Dettol antiseptic on open wounds?

Yes — Dettol liquid antiseptic is designed for use on minor open wounds such as cuts and grazes, provided it is correctly diluted. It should not be used on deep wounds, puncture wounds, animal bites, or burns, as these require professional medical assessment. If a wound is not healing or shows signs of infection, see your GP.

What happens if I accidentally use Dettol undiluted on skin?

Applying undiluted Dettol directly to skin can cause irritation, burning, or chemical injury to the skin surface. If this happens, rinse the area thoroughly with plenty of clean water for at least 10–15 minutes. If irritation persists, redness worsens, or blistering occurs, seek medical advice promptly.

What are the alternatives to Dettol liquid antiseptic?

Common alternatives include Savlon Antiseptic Liquid (containing chlorhexidine gluconate and cetrimide) and iodine-based antiseptics such as povidone-iodine. Each has a slightly different antimicrobial profile, so the best choice depends on the wound type and any known sensitivities. Speak to a pharmacist if you're unsure which is most appropriate for your situation. You can also explore our first aid range for other wound care options.

Is Dettol liquid antiseptic the same as Dettol disinfectant?

No — they are different products intended for different purposes. Dettol liquid antiseptic is formulated for use on skin to cleanse minor wounds, while Dettol disinfectant products are designed for cleaning surfaces and should never be applied to the body. Always read the label carefully before use to ensure you're using the correct product.

How long can you use Dettol liquid antiseptic for?

Dettol liquid antiseptic is intended for short-term use on minor wounds as needed. There is no defined maximum duration, but if you find yourself needing to use it repeatedly on the same wound over several days without improvement, this may indicate the wound is not healing properly. In that case, consult your GP or pharmacist for further assessment.

How should I store Dettol Liquid Antiseptic 500ml?

Store the bottle below 25°C in a cool, dry place away from direct sunlight and heat sources. Always replace the cap tightly after use and keep the product out of reach of children and pets. Check the expiry date before each use and do not use the product if it has expired or if the liquid appears significantly discoloured.

Can Dettol antiseptic interact with other medicines?

No significant drug interactions are currently documented for topical chloroxylenol when used as directed on intact or minor broken skin. However, you should avoid applying multiple topical antiseptics to the same wound area simultaneously without professional guidance. If you are using any prescribed topical treatments, check with your pharmacist before combining them with Dettol.

What are the latest studies on chloroxylenol as an antiseptic?

Chloroxylenol has been used as a topical antiseptic for many decades and remains well-established in clinical practice for minor wound care. Current evidence supports its effectiveness against a broad range of common skin bacteria when used at appropriate dilutions. For the most up-to-date clinical guidance on wound care, the NHS and NICE provide regularly reviewed resources for both patients and healthcare professionals. You can also browse our skin care collection for complementary wound recovery products.

How Should You Use Dettol Liquid Antiseptic?

Dettol Liquid Antiseptic must always be diluted before applying to skin. Using it undiluted can cause irritation or chemical burns to the skin surface. The standard dilution produces a milky white solution — this is your visual confirmation that the product is ready to use safely.

Follow these steps each time you use the product:

What Is the Correct Dose of Dettol Liquid Antiseptic?

There is no fixed "dose" in the traditional sense for a topical antiseptic — the key measure is the correct dilution ratio. Using too little Dettol may reduce effectiveness, while using too much increases the risk of skin irritation. Always follow the 1:20 ratio for skin application.

When Is the Best Time to Use Dettol Liquid Antiseptic?

The most effective time to use Dettol liquid antiseptic is as soon as possible after a minor cut, graze, or skin abrasion occurs. Prompt cleansing reduces the number of bacteria at the wound site before they have a chance to multiply and cause infection. Delaying treatment — even by a few hours — can increase the risk of localised infection developing.

You can also use it before applying a wound dressing, or when changing a dressing on a minor wound that is still in the early stages of healing. Avoid using it on wounds that are already showing signs of infection — these need medical assessment rather than home antiseptic treatment.

How Long Can You Use Dettol Liquid Antiseptic For?

Dettol liquid antiseptic is intended for short-term use on minor wounds as required. Most minor cuts and grazes heal within a few days to a week with appropriate care. If you are still needing to cleanse the same wound after 5–7 days without visible improvement, or if the wound appears to be worsening, you should seek advice from your GP or pharmacist rather than continuing to self-treat.

There is no defined maximum number of applications, but prolonged or repeated use on the same area of skin may increase the risk of irritation or sensitisation. Use only as long as clinically necessary for the minor injury you are treating.

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

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What Are the Most Common Side Effects of Dettol Liquid Antiseptic?

When used correctly at the recommended dilution, Dettol liquid antiseptic is generally well tolerated. However, some people do experience mild reactions, particularly those with sensitive skin. These effects are usually short-lived and resolve once you stop using the product.

  • Mild stinging or burning sensation at the application site
  • Temporary redness or flushing of the surrounding skin
  • Slight dryness of the skin with repeated application

What Are the Less Common Side Effects of Dettol Liquid Antiseptic?

Less commonly, some individuals may develop a more pronounced skin reaction, particularly with repeated or prolonged use. These reactions are more likely in people with pre-existing skin conditions such as eczema or contact dermatitis.

  • Allergic contact dermatitis — presenting as an itchy, red, or blistering rash
  • Skin sensitisation, where the skin becomes increasingly reactive to the product over time
  • Localised swelling or urticaria (hives) in people with chloroxylenol sensitivity

What Are the Serious Side Effects of Dettol Liquid Antiseptic?

Serious side effects are rare when the product is used as directed. However, misuse — particularly applying undiluted Dettol directly to skin — can cause chemical burns, significant tissue irritation, and lasting skin damage. This is a misuse effect rather than a therapeutic one, and it is entirely preventable by following dilution instructions.

A serious allergic reaction (anaphylaxis) is extremely rare but possible. Signs include swelling of the face, lips, tongue, or throat, difficulty breathing, rapid heartbeat, or a sudden drop in blood pressure. If you or someone nearby experiences these symptoms after using this product, call 999 immediately.

What Should You Do If You Experience Side Effects?

If you notice mild irritation or redness, rinse the affected area with plenty of clean water and discontinue use. In most cases, mild reactions resolve within a short time once the product is removed from the skin. Do not apply further antiseptic to an already irritated area.

If you accidentally apply undiluted Dettol to skin, rinse immediately with large amounts of water for at least 10–15 minutes. If irritation, blistering, or significant pain persists, seek medical attention. For any suspected allergic reaction, stop use immediately and contact your GP or call NHS 111 for guidance.

Can Dettol Liquid Antiseptic Interact With Other Medicines?

No clinically significant drug interactions are currently documented for topical chloroxylenol when used as directed on minor wounds. That said, you should avoid applying multiple topical antiseptic agents to the same wound simultaneously, as this may increase the risk of skin irritation without providing additional benefit. If you are using any prescribed topical treatments — such as antibiotic creams or steroid ointments — speak to your pharmacist before using Dettol on the same area.

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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