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Cetraben Emollient Bath Additive 500ml

Cetraben Emollient Bath Additive 500ml

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  • ✔️ Soothes dry, itchy skin caused by eczema and psoriasis
  • ✔️ Contains 82.8% light liquid paraffin for effective skin barrier support
  • ✔️ Suitable for adults, children, and babies with sensitive skin
  • ✔️ Fragrance-free formula minimises risk of irritation on sensitive skin
  • ✔️ Moisturises the whole body during bathing in one simple step

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What Is Cetraben Emollient Bath Additive and How Does It Help Dry Skin?

 

If you live with eczema, psoriasis, or persistently dry skin, you'll know how uncomfortable daily bathing can feel. Hot water strips away the skin's natural oils, leaving it tight, itchy, and irritated. That's exactly where cetraben emollient bath additive comes in. This 500ml bath soak is designed to be added directly to your bathwater, turning an ordinary soak into a skin-nourishing experience. It's available over the counter, requires no prescription, and is suitable for the whole family — including young children. You can find it alongside other skin care products at Cured Pharmacy for just £7.99.

Cetraben Emollient Bath Additive is manufactured by Thornton & Ross and contains light liquid paraffin 82.8% w/w as its active ingredient. It is classified as a medical emollient, meaning it's specifically formulated to manage dry skin conditions rather than simply cosmetically moisturise. The NHS recommends emollients as a first-line treatment for conditions like eczema and psoriasis, and bath additives form an important part of that routine for many patients.

 

How Does Cetraben Emollient Bath Additive Work on the Skin?

 

The mechanism is straightforward but genuinely effective. When you add the product to warm bathwater, the light liquid paraffin disperses throughout the water and coats the skin as you soak. Here's what happens at each stage:

  • Light liquid paraffin forms a thin, occlusive film over the skin surface during bathing.
  • This film reduces transepidermal water loss (TEWL) — the process by which moisture evaporates from the skin.
  • The emollient softens and smooths the outer layer of skin (the stratum corneum), reducing tightness and flaking.
  • After you pat your skin dry, a residual layer of paraffin remains, continuing to protect the skin barrier.

It doesn't treat the underlying cause of eczema or psoriasis, but it does manage the symptoms — dryness, itching, and irritation — which is often what matters most day to day. Consistent use helps maintain the skin barrier over time, potentially reducing the frequency and severity of flare-ups.

 

Who Should Use Cetraben Emollient Bath Additive?

 

This product is suitable for a wide range of people. It's particularly useful if you have a chronic dry skin condition and want a simple, low-effort way to incorporate emollient therapy into your daily routine. It's also a good option if you find applying creams all over the body time-consuming or uncomfortable.

  • Adults and children with eczema (atopic dermatitis)
  • People with psoriasis experiencing dry, flaky skin
  • Individuals with ichthyosis or other dry skin disorders
  • Babies and toddlers with sensitive or dry skin (seek GP advice first for infants under 12 months)

It is not intended for use on broken, infected, or weeping skin. If your skin is actively infected or you're unsure whether this product is right for you, speak to your GP or pharmacist before use.

 

How Does Cetraben Bath Additive Compare to Other Emollient Bath Additives?

 

Feature Cetraben Emollient Bath Additive Oilatum Emollient Bath Additive
Active ingredient Light liquid paraffin 82.8% w/w Light liquid paraffin 63.4% w/w
Suitable for children Yes, including babies Yes, including babies
Fragrance-free Yes Yes
Pack size 500ml 250ml / 500ml

 

Is Cetraben Emollient Bath Additive Safe to Store at Home?

 

Yes — storage is simple. Keep the bottle below 25°C, away from direct sunlight, and out of reach of children. Do not store it in the bathroom if temperatures fluctuate significantly. The product does not require refrigeration. Check the expiry date on the bottle before use and do not use it after that date. If you're looking for other creams and ointments to complement your emollient routine, Cured Pharmacy stocks a wide range of topical skin treatments.

One important safety note: light liquid paraffin-based products make bath and shower surfaces extremely slippery. Always place a non-slip mat in the bath before use, and take care when getting in and out. This applies to adults and children alike.

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.

Cetraben Emollient Bath Additive 500ml specifications
Treatment category Emollient / Dry skin therapy
Mechanism of action Occlusive emollient — forms a protective film to reduce transepidermal water loss
Effective for Eczema, psoriasis, ichthyosis, dry and sensitive skin
Suitable for Adults, children, and babies (seek GP advice for infants under 12 months)
Active ingredient Light liquid paraffin 82.8% w/w
Pack size 500ml
UK classification General Sale List (GSL)
Drug class Emollient
Preparation Liquid bath additive
Route of administration Topical (added to bath water)

Specifications of Cetraben Emollient Bath Additive 500ml

 

What Is Cetraben Emollient Bath Additive and What Is It Used For?

 

Cetraben Emollient Bath Additive 500ml is a topical emollient preparation used to soothe and moisturise dry, itchy, and sensitive skin. It contains light liquid paraffin 82.8% w/w as its active ingredient. It is used as part of the management of chronic dry skin conditions, including eczema (atopic dermatitis), psoriasis, and ichthyosis. The NHS recommends emollients as a cornerstone of dry skin management, and bath additives are one of the most convenient ways to apply emollient therapy across the whole body.

Unlike leave-on emollient creams, this product is added to bathwater and works during your soak. It is not a soap substitute, though it can be used alongside one. It is available without a prescription and is suitable for adults, children, and babies.

 

What Do You Need to Know Before Using Cetraben Emollient Bath Additive?

 

Before using this product, read the following carefully. Most people tolerate it well, but there are some important contraindications and warnings to be aware of.

Do not use this product if you:

  • Are allergic to light liquid paraffin or any other ingredient in the formulation
  • Have broken, infected, or weeping skin in the area to be treated
  • Have an active skin infection (bacterial, viral, or fungal) — treat the infection first

Warnings and precautions:

  • Bath and shower surfaces become very slippery when this product is used — always use a non-slip mat
  • Avoid contact with eyes; rinse thoroughly with water if contact occurs
  • Paraffin-based emollients can soak into fabric and become a fire hazard — keep clothing, bedding, and towels away from open flames or cigarettes
  • Seek GP advice before using on babies under 12 months
  • If your skin condition worsens or does not improve after regular use, consult your GP

Drug interactions:

  • No clinically significant drug interactions are known for topical light liquid paraffin
  • If you are using other topical treatments (such as topical corticosteroids), apply them separately after bathing and patting skin dry — do not mix in the bath

 

How Should You Use Cetraben Emollient Bath Additive?

 

Using this product correctly makes a real difference to how well it works. Follow these steps each time:

  1. Fill the bath with comfortably warm water — avoid hot water, which can worsen dry skin.
  2. Add 1–3 capfuls of Cetraben Emollient Bath Additive directly to the water.
  3. Stir the water gently to disperse the product evenly.
  4. Soak in the bath for 10–20 minutes.
  5. Get out carefully — the bath surface will be slippery. Use a non-slip mat.
  6. Pat (do not rub) your skin dry with a soft towel.
  7. Apply any leave-on emollient or prescribed topical treatment immediately after drying, while skin is still slightly damp.
Indication Age Group Dose Frequency
Dry skin / eczema / psoriasis Adults 2–3 capfuls per bath Once daily or as directed by GP
Dry skin / eczema Children (1 year+) 1–2 capfuls per bath Once daily or as directed by GP
Sensitive / dry skin Babies (under 12 months) As directed by GP or pharmacist As directed

If you're managing eczema in a child, it's worth exploring our baby and toddler range for additional products suited to young, sensitive skin.

 

What Are the Possible Side Effects of Cetraben Emollient Bath Additive?

 

Side effects with this product are uncommon. Most people use it without any problems at all. However, as with any topical product, reactions can occasionally occur.

Common side effects:

  • Mild skin irritation or redness at the site of application
  • Temporary stinging sensation, particularly on sensitive or broken skin

Less common side effects:

  • Allergic skin reaction (contact dermatitis) — presents as a rash, itching, or swelling
  • Folliculitis (inflammation of hair follicles) with prolonged or heavy use — more common in people with body hair

Stop using the product and contact your GP or pharmacist if you develop a rash, significant worsening of your skin condition, or any signs of an allergic reaction. The most significant non-skin risk is slipping in the bath — this is a real and documented hazard with all paraffin-based bath additives.

 

How Should You Store Cetraben Emollient Bath Additive?

 

Correct storage keeps the product safe and effective for its full shelf life. Follow these guidelines:

  • Store below 25°C in a cool, dry place
  • Keep away from direct sunlight and heat sources
  • Do not refrigerate
  • Keep the cap tightly closed when not in use
  • Keep out of reach and sight of children
  • Do not use after the expiry date printed on the bottle
  • Do not store near open flames — paraffin-based products are flammable when absorbed into fabric

If you're building a broader skincare routine for a dry skin condition, you might also want to browse our skin care collection for complementary emollient creams and soap substitutes.

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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 Cetraben Emollient Bath Additive online in the UK?

You can buy Cetraben Emollient Bath Additive 500ml directly from Cured Pharmacy, a GPhC-registered UK online pharmacy, for £7.99. No prescription is needed — it's available over the counter as a General Sale List medicine. Simply add it to your basket and it will be dispatched to your door.

How does Cetraben Emollient Bath Additive work in the body?

Cetraben Emollient Bath Additive works by dispersing light liquid paraffin throughout your bathwater, which then coats the skin as you soak. This creates an occlusive film that reduces transepidermal water loss — the process by which moisture escapes from the skin surface. The result is softer, better-hydrated skin that is less prone to itching and irritation.

How do I use Cetraben Emollient Bath Additive step by step?

Add 1–3 capfuls to a bath of warm (not hot) water and stir to disperse. Soak for 10–20 minutes, then carefully step out using a non-slip mat — the bath will be slippery. Pat your skin dry gently with a soft towel and apply any leave-on emollient or prescribed cream immediately afterwards while skin is still slightly damp.

What is the correct dose of Cetraben Emollient Bath Additive for adults?

Adults should add 2–3 capfuls to a full bath of warm water. You can use it once daily or as directed by your GP or pharmacist. Do not exceed the recommended amount — using more does not improve the effect and wastes product.

Is Cetraben Emollient Bath Additive safe for babies and young children?

Yes, Cetraben Emollient Bath Additive is suitable for children and babies. For infants under 12 months, always consult your GP or health visitor before use. You can find other products suited to young skin in our baby and toddler collection. Use 1–2 capfuls for children and follow your GP's guidance on frequency.

What are the side effects of Cetraben Emollient Bath Additive?

Side effects are uncommon but can include mild skin irritation, redness, or a temporary stinging sensation. Rarely, some people may experience a contact allergic reaction presenting as a rash or increased itching. The most significant practical risk is slipping in the bath — always use a non-slip mat when using any paraffin-based bath additive.

How do I manage side effects of Cetraben Emollient Bath Additive?

If you notice mild irritation, try reducing the amount you add to the bath and ensure the water is not too hot. If a rash or allergic reaction develops, stop using the product immediately and speak to your pharmacist or GP. To manage the slip hazard, always place a non-slip mat in the bath before adding the product to the water.

Who is eligible to use Cetraben Emollient Bath Additive?

This product is suitable for adults, children, and babies with dry, itchy, or sensitive skin conditions including eczema, psoriasis, and ichthyosis. It is not suitable for use on broken, infected, or weeping skin. People with a known allergy to light liquid paraffin or any other ingredient should not use it.

What happens if I use too much Cetraben Emollient Bath Additive?

Using more than the recommended amount will not improve the therapeutic effect and will simply make the bath surface even more slippery, increasing the risk of a fall. Stick to 1–3 capfuls per bath as directed. If you accidentally ingest any of the product, contact NHS 111 or your nearest A&E for advice.

What are the alternatives to Cetraben Emollient Bath Additive?

Common alternatives include Oilatum Emollient Bath Additive and Balneum Bath Oil, both of which also contain emollient oils for dry skin management. You can explore a range of creams and ointments at Cured Pharmacy if you prefer a leave-on emollient instead. Your GP or pharmacist can advise on which product is most appropriate for your skin type and condition.

Can I use Cetraben Emollient Bath Additive every day?

Yes, daily use is appropriate and often recommended for people with chronic dry skin conditions like eczema. Regular emollient use helps maintain the skin barrier and can reduce the frequency of flare-ups over time. The NHS advises using emollients regularly, even when the skin appears to be clear.

How long can you use Cetraben Emollient Bath Additive for?

There is no maximum duration of use — Cetraben Emollient Bath Additive can be used long-term as part of an ongoing emollient regimen. Emollients are generally considered safe for indefinite use. However, it's good practice to review your skincare routine with your GP or pharmacist periodically, especially if your skin condition changes.

Is Cetraben Emollient Bath Additive the same as Cetraben cream?

No — they are different formulations used in different ways. Cetraben Emollient Bath Additive is a liquid added to bathwater to moisturise the whole body during soaking, while Cetraben cream is a leave-on emollient applied directly to the skin after washing. Many people use both as part of a complete emollient routine, as recommended by the NHS.

Does Cetraben Emollient Bath Additive make the bath slippery?

Yes — this is an important safety consideration. Light liquid paraffin makes bath and shower surfaces very slippery, and this is true of all paraffin-based bath additives. Always place a non-slip mat in the bath before adding the product to the water. Take extra care when helping children or elderly individuals in and out of the bath.

What are the latest recommendations on emollient bath additives for eczema?

The NHS and NICE continue to recommend emollients, including bath additives, as a key part of eczema management. Some research has questioned whether bath additives add benefit over leave-on emollients alone, but clinical guidance still supports their use as part of a broader emollient routine. Always follow your GP's or dermatologist's personalised advice for your specific condition.

How Should You Use Cetraben Emollient Bath Additive?

Using Cetraben Emollient Bath Additive correctly is straightforward, but a few simple steps make a real difference to how well it works. Always read the label before use and follow the instructions below.

What Is the Correct Dose of Cetraben Emollient Bath Additive?

The dose varies depending on age. Always use the minimum effective amount — using more than recommended does not improve results and increases the slip hazard in the bath.

When Is the Best Time to Use Cetraben Emollient Bath Additive?

There is no single "correct" time, but most people find that bathing in the evening works well — it soothes irritated skin before bed and helps reduce overnight scratching, which is a common problem for people with eczema. If you prefer a morning bath, that works equally well. The key is consistency: using the product at the same time each day helps establish a routine and ensures your skin receives regular emollient therapy. Avoid bathing immediately after applying a topical corticosteroid, as this may dilute or remove the treatment.

How Long Can You Use Cetraben Emollient Bath Additive For?

Cetraben Emollient Bath Additive can be used long-term without any known safety concerns. Emollients are generally recommended for ongoing, indefinite use in people with chronic dry skin conditions such as eczema and psoriasis — the NHS advises continuing emollient use even when the skin appears clear, to help prevent flare-ups. Review your skincare routine with your GP or pharmacist periodically, particularly if your skin condition changes or if you develop any new symptoms. Do not stop using emollients suddenly without speaking to a healthcare professional if they have been prescribed as part of your treatment plan.

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 Cetraben Emollient Bath Additive?

Most people use Cetraben Emollient Bath Additive without experiencing any side effects at all. It is generally very well tolerated, even with daily use. However, as with any topical product, mild reactions can occasionally occur, particularly when you first start using it.

  • Mild skin irritation or redness at the site of contact
  • Temporary stinging or tingling sensation, especially on sensitive or slightly broken skin
  • Skin feeling greasy or oily immediately after bathing

What Are the Less Common Side Effects of Cetraben Emollient Bath Additive?

Less commonly, some people may experience reactions that require attention. These are not typical but are worth being aware of before you start using the product.

  • Contact dermatitis — an allergic skin reaction presenting as a rash, increased itching, or swelling
  • Folliculitis — inflammation of the hair follicles, which can occur with prolonged or heavy use of paraffin-based products, particularly in areas with dense body hair
  • Worsening of existing skin condition — if this occurs, stop use and consult your GP

What Are the Serious Side Effects of Cetraben Emollient Bath Additive?

Serious side effects from this product are rare. The most clinically significant risk associated with paraffin-based bath additives is not a skin reaction — it is the fire hazard created when paraffin soaks into fabric. Clothing, bedding, and towels that have been in contact with paraffin-based emollients can ignite more easily if exposed to a naked flame or cigarette. This is a documented risk highlighted by the MHRA and NHS. Always wash fabrics regularly and keep them away from open flames.

The other serious practical risk is slipping in the bath. Falls in the bath are a genuine hazard, particularly for elderly patients and young children. Always use a non-slip mat and, where possible, have someone nearby when bathing.

What Should You Do If You Experience Side Effects of Cetraben Emollient Bath Additive?

If you notice mild irritation, try reducing the amount you add to the bath and ensure the water temperature is not too hot. If a rash, significant worsening of your skin condition, or signs of an allergic reaction develop — such as swelling, hives, or difficulty breathing — stop using the product immediately and seek medical advice. For non-urgent concerns, your pharmacist is a good first point of contact. For serious allergic reactions, call 999 or go to your nearest A&E.

Can Cetraben Emollient Bath Additive Interact With Other Medicines?

No clinically significant drug interactions are known for topical light liquid paraffin. However, if you are using other topical treatments — such as topical corticosteroids, calcineurin inhibitors, or prescribed medicated creams — do not add them to the bath alongside this product. Apply leave-on treatments separately after bathing and patting the skin dry. If you are unsure whether Cetraben Emollient Bath Additive is compatible with your current treatment plan, speak to your GP or pharmacist before use.

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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