Skincare Ingredients to Avoid When You Have Eczema-Prone Skin

When managing eczema-prone skin, most advice focuses on what to add to your routine. Use a ceramide-rich moisturiser. Look for post-biotics. Choose fragrance-free products. But there is an equally important question that often goes unasked: what should you remove?

Many everyday skincare products contain ingredients that can silently aggravate eczema-prone skin, weaken the skin barrier and trigger the very flare-ups you are trying to prevent. Knowing what to avoid is just as critical as knowing what to use.

Table of Contents

Why Ingredient Awareness Matters for Eczema-Prone Skin

Eczema-prone skin is structurally different from healthy skin. It produces fewer ceramides, has a compromised skin barrier and often has a less diverse microbiome. This means it is far more reactive to ingredients that healthy skin might tolerate without issue.

What feels gentle on normal skin can cause stinging, redness and inflammation on eczema-prone skin. The problem is compounded by marketing. Products labelled “gentle”, “natural” or even “for sensitive skin” can still contain ingredients that are known irritants. Reading beyond the front label is essential.

Synthetic Fragrances and Parfum

Fragrance is one of the most common irritants in skincare. The term “parfum” or “fragrance” on an ingredient list can represent a blend of dozens of undisclosed chemicals, any of which could trigger a reaction on sensitive skin.

Studies published in the Contact Dermatitis journal consistently rank fragrance among the top allergens in cosmetic products. For eczema-prone skin, even trace amounts can provoke itching, redness and flare-ups. The safest approach is to choose products that are completely fragrance-free, not simply “unscented.” Unscented products may still contain masking fragrances designed to neutralise odour.

Sulphates: SLS and SLES

Sodium Lauryl Sulphate (SLS) and Sodium Laureth Sulphate (SLES) are aggressive surfactants commonly found in cleansers, body washes and shampoos. They create the foaming lather many people associate with cleanliness, but that lather comes at a cost.

Sulphates strip the skin of its natural oils and disrupt the lipid layer that holds your skin barrier together. For eczema-prone skin, which already has a weakened barrier, this accelerates moisture loss and leaves the skin exposed to irritants. If your cleanser foams heavily, check the label for these ingredients.

Denatured Alcohol

Denatured alcohol (listed as Alcohol Denat., SD Alcohol or Isopropyl Alcohol) is used in many skincare products as a solvent or to create a lightweight, fast-absorbing texture. While it may feel pleasant on application, it evaporates quickly and takes moisture with it.

For eczema-prone skin, this drying effect is particularly damaging. It depletes the skin’s natural lipids and can cause micro-cracks in an already fragile barrier, increasing the risk of irritation and flare-ups. Note that not all alcohols are harmful. Fatty alcohols like Cetyl Alcohol and Stearyl Alcohol are emollients that actually benefit the skin.

Essential Oils: Natural Does Not Mean Safe

Essential oils are often marketed as gentle alternatives to synthetic ingredients. However, “natural” does not automatically mean safe for eczema-prone skin. Many essential oils, including tea tree, lavender, eucalyptus and peppermint, contain compounds that are known skin sensitisers.

These compounds can cause contact dermatitis, worsen existing inflammation and disrupt the skin’s microbiome. The concentration matters but for eczema-prone skin that is already reactive, even diluted essential oils can pose a risk. A truly sensitive skin-friendly product avoids essential oils entirely.

Formaldehyde-Releasing Preservatives

Formaldehyde releasers are preservatives that slowly release small amounts of formaldehyde to prevent bacterial growth in skincare products. Common examples include DMDM Hydantoin, Imidazolidinyl Urea, Diazolidinyl Urea and Quaternium-15.

Formaldehyde is a known skin sensitiser and is ranked as a significant allergen by dermatological research bodies. For eczema-prone skin, exposure can trigger contact reactions that compound existing symptoms. Always check the full ingredient list for these preservatives, as they appear in more products than most people realise.

How to Read a Skincare Label with Confidence

Navigating ingredient lists can feel overwhelming, but a few simple habits make it far more manageable:

1. Look for third-party verification: certifications like EWG-verified provide an independent safety assessment of every ingredient. A score of 1 represents the lowest hazard rating

2. Check for “fragrance” or “parfum”: if either appears on the list, the product is not truly fragrance-free

3. Scan for sulphates and alcohols: SLS, SLES and Alcohol Denat. are easy to spot once you know what to look for

4. Be sceptical of vague claims: terms like “dermatologically inspired”, “natural” and “hypoallergenic” are not regulated. Look for “dermatologist-tested” backed by actual testing

The safest products make it easy for you. They have short, transparent ingredient lists with nothing to hide.

A Cleaner Standard for Eczema-Prone Skin

SERICH’s Signature Second Skin Moisturising Cream was formulated with ingredient safety as a foundational principle. Every single ingredient scores a 1 on the EWG scale, the lowest possible hazard rating, meaning it has been independently assessed and verified for safety.

The formula contains no synthetic fragrances, no sulphates, no parabens, no denatured alcohol, no essential oils and no formaldehyde releasers. What it does contain is a triple-ceramide complexpost-biotics from Lactobacillus Ferment, Centella Asiatica, Hydrolyzed Hyaluronic Acid, Olive Squalane and Shea Butter.

The cream is steroid-free, PETA-approved, dermatologist-tested and plant-based. Daniel, the founder, built SERICH on a simple belief: you should never have to wonder whether your daily moisturiser is doing your skin more harm than good.

Your Skin Deserves Better Ingredients

The products you avoid matter just as much as the ones you choose. If you are ready to simplify your routine with skincare you can trust, explore the Serich Moisturising Cream and see what a truly clean, eczema-safe formulation looks like.

You may wish to learn more about SERICH Moisturising Cream, developed to support the skin barrier with science led formulation. It is fragrance free, steroid free, cruelty free, vegan, approved by PETA, EWG Verified and made in Singapore.