What is Zerocream and How Does It Work?
Zerocream is a topical emollient, which means it is a moisturizing treatment applied directly to the skin to soothe and hydrate it [1.7.5]. It is commonly used to manage dry, flaking, or itchy skin conditions such as eczema, dermatitis, and psoriasis [1.2.1, 1.8.3].
The primary active ingredients in Zerocream are liquid paraffin (12.6% w/w) and white soft paraffin (14.5% w/w) [1.3.6]. These ingredients work by forming a protective, occlusive layer on the skin's surface. This barrier serves two main functions: it locks in the skin's natural moisture to prevent it from evaporating, and it protects the skin from external irritants [1.7.1, 1.8.1]. In addition to the paraffins, Zerocream contains other ingredients like lanolin, cetyl alcohol, and various preservatives that may cause reactions in sensitive individuals [1.4.3]. It can also be used as a soap substitute to avoid the drying effects of traditional soaps and shower gels [1.3.4, 1.7.5].
A Detailed Look: What are the side effects of Zerocream?
While most people can use emollients like Zerocream without any issues, side effects can occur. These range from common and mild to rare but serious [1.2.6].
Common & Mild Side Effects
Upon application, especially on very dry or cracked skin, some users may experience temporary side effects [1.2.6]. These often resolve as the skin's condition improves and include:
- Burning or stinging sensations [1.2.6]
- Redness or itching [1.2.6]
- Mild rashes or general skin irritation [1.2.1]
If these effects persist or worsen, it is recommended to stop using the product and consult a doctor or pharmacist [1.2.6]. Sometimes, applying too much emollient can make the skin appear white or feel soggy, indicating overuse [1.2.4].
Rare but Serious Allergic Reactions
In rare cases, a person may have a more severe hypersensitivity or allergic reaction to one of the ingredients in Zerocream [1.2.2]. Ingredients such as lanolin, cetyl alcohol, and parahydroxybenzoates (preservatives) can cause local skin reactions like contact dermatitis [1.4.1, 1.4.3].
Signs of a severe allergic reaction require immediate medical attention [1.3.2, 1.4.4]. Symptoms include:
- Worsening of the skin rash or itching [1.2.3]
- Swelling of the face, lips, tongue, or throat [1.2.5, 1.4.4]
- Wheezing, tightness in the chest, or difficulty breathing [1.2.5, 1.4.4]
- Severe dizziness or loss of consciousness [1.3.2]
CRITICAL WARNING: The Risk of Fire Hazard
A crucial and often overlooked danger associated with paraffin-based emollients like Zerocream is the risk of severe burns and fire-related fatalities [1.3.3]. The Medicines and Healthcare products Regulatory Agency (MHRA) has issued strong warnings about this hazard [1.5.1, 1.5.6].
The emollient itself is not flammable, but it can transfer from the skin and soak into fabrics such as clothing, bedding, and dressings [1.5.3]. This residue builds up over time and acts as an accelerant, causing the fabric to ignite much more easily and burn far more quickly and intensely if it comes into contact with a naked flame (e.g., from a lighter, candle, or gas cooker) [1.5.1, 1.5.3]. Washing fabrics, even at high temperatures, may reduce the build-up but does not completely remove it [1.5.2]. This risk applies to all emollients containing paraffin, regardless of concentration, as well as paraffin-free emollients [1.5.2].
How to Use Zerocream Safely
To maximize benefits and minimize risks, proper application is key.
- Perform a Patch Test: If you are using Zerocream for the first time, apply a small amount to a discreet area of skin and wait 24-48 hours to check for any adverse reaction.
- Apply Correctly: Use a clean spoon or a pump dispenser to get the cream out, rather than your fingers, to avoid contaminating the tub [1.7.3]. Apply a thin layer to the affected areas and smooth it gently in the direction of hair growth. Do not rub it in vigorously, as this can irritate the skin [1.7.1, 1.7.3].
- Apply Frequently: For best results, apply Zerocream 2-3 times a day or as often as needed, especially after bathing or showering to lock in moisture [1.7.2, 1.7.1].
- Heed Fire Warnings: Do not smoke or go near naked flames while using this product. Be sure to change and wash clothing and bedding regularly to reduce emollient build-up [1.3.3, 1.5.1].
Zerocream Alternatives: A Comparison
There are many emollients available, and the best choice can depend on individual skin type and preference. A study found no significant difference in effectiveness between different types of emollients (lotions, creams, gels, and ointments) for childhood eczema [1.6.2].
| Emollient | Key Ingredients | Texture & Feel | Notes |
|---|---|---|---|
| Zerocream | Liquid Paraffin, White Soft Paraffin, Lanolin [1.3.6] | Cream, non-greasy feel after absorption [1.8.1] | Can be used as a soap substitute. Contains potential allergens like lanolin [1.3.4, 1.4.3]. |
| Cetraben Cream | White Soft Paraffin, Light Liquid Paraffin [1.6.3] | Cream, cosmetically acceptable [1.6.6] | An alternative to Zeroderm where not tolerated. Does not contain SLS [1.6.3]. |
| Aveeno Cream | Colloidal Oatmeal (Avena Sativa Kernel Flour) [1.2.2], Glycerin | Cream, often described as soothing | The oatmeal ingredient is a key differentiator. Comparable to Zeroveen [1.6.5]. |
Conclusion: Balancing Efficacy with Awareness
Zerocream is an effective and widely used emollient for managing a variety of dry skin conditions. Its benefits in hydrating and protecting the skin are well-established. However, users must be fully aware of the potential side effects. While mild skin irritation is the most common issue, the possibility of allergic reactions and the serious fire hazard associated with paraffin build-up on fabrics cannot be ignored. Safe use, including correct application and strict avoidance of naked flames, is essential to balancing the therapeutic benefits of Zerocream with its inherent risks.
For more information on the fire risk from emollients, you can visit the GOV.UK website: MHRA Emollient Fire Risk Information [1.5.6]
