By Valley Skin Institute, Fresno, CA · October 2026
Quick answer: The main skincare ingredients to avoid with eczema are fragrance (including essential oils), harsh sulfate cleansers, drying alcohols, preservatives such as methylisothiazolinone, and exfoliating acids or retinoids used on irritated skin. Choose fragrance-free products made with ceramides, glycerin, petrolatum, or colloidal oatmeal.
- Fragrance is the most common problem. “Unscented” doesn’t mean fragrance-free.
- “Natural” isn’t always gentler. Essential oils and botanical extracts are frequent irritants and allergens.
- Not every alcohol is bad. Cetyl and stearyl alcohol are moisturizing; alcohol denat. is drying.
- Pause strong actives during a flare, including retinol, glycolic acid, and salicylic acid.
- A product can stop agreeing with you, even one you’ve used for years. Ask a dermatologist if a rash keeps returning.
October is Eczema Awareness Month, so it’s a good time to check your bathroom shelf. Many eczema flares start with the products meant to soothe the skin rather than with food or the weather. This guide covers the skincare ingredients to avoid with eczema, explains why each one causes trouble, and lists what to use instead.
Eczema is common. According to the National Eczema Association, about 31.6 million people in the United States have some form of it. With eczema, the skin barrier is already weak, so ingredients that normal skin tolerates can sting, dry the skin out, or cause an allergic reaction.
What Are the Skincare Ingredients to Avoid With Eczema?
Most problem ingredients fall into a few groups. Use this table when you read a label.
| Ingredient | How it appears on labels | Why it can trigger eczema |
|---|---|---|
| Fragrance | fragrance, parfum, aroma, “masking fragrance” | One of the most common causes of skin allergy, and it irritates a damaged skin barrier |
| Essential oils | tea tree, lavender, citrus, peppermint, ylang-ylang oil | Natural fragrance compounds that can irritate the skin or cause an allergy |
| Harsh cleansers (sulfates) | sodium lauryl sulfate (SLS), sodium laureth sulfate | Strip away the oils that hold moisture in the skin |
| Drying alcohols | alcohol denat., SD alcohol, ethanol, isopropyl alcohol | Evaporate quickly and pull water out of the skin |
| Certain preservatives | methylisothiazolinone (MI), methylchloroisothiazolinone (MCI), formaldehyde releasers (DMDM hydantoin, quaternium-15) | Common contact allergens |
| Exfoliating acids and retinoids | glycolic acid, lactic acid, salicylic acid, retinol, retinaldehyde | Thin and irritate skin that is already inflamed |
| Possible sensitizers (for some people) | lanolin, propylene glycol, cocamidopropyl betaine | Most people tolerate them, but each can cause an allergy in some people |
You don’t need to avoid everything on this list for life. Some people react to many of these ingredients and others to only one. If a product keeps causing problems, these are the first ingredients to check.
If you’re looking for diet-related triggers instead, see our guide to foods that can trigger eczema.
Why Does Fragrance Cause So Many Eczema Flares?
Fragrance tops the list because it’s in so many products and it can cause trouble in two ways. It can irritate skin directly, and over time it can cause an allergy that leads to a rash whenever you’re exposed. A single “fragrance” or “parfum” on a label can stand for dozens of separate chemicals, and companies don’t have to list them.
Two label terms confuse a lot of people:
- Fragrance-free means no fragrance has been added. This is the one to look for.
- Unscented means the product doesn’t smell. It may still contain a masking fragrance that hides the smell of other ingredients.
Plant oils count as fragrance too. Tea tree, lavender, and citrus oils are popular in “clean” and “natural” products. For eczema-prone skin they can be among the most irritating ingredients on the label.
Which Cleansers and Preservatives Irritate Eczema-Prone Skin?
Foaming cleansers
Sodium lauryl sulfate (SLS) makes cleansers, shampoos, and body washes lather. It also removes the natural oils that keep skin moisturized. With eczema, the skin can’t replace those oils quickly, so each wash leaves it drier and more irritated. Use a gentle, non-foaming or low-foaming cleanser, and wash with lukewarm water rather than hot.
Preservatives
Water-based products need preservatives to stop bacteria growing in them, but some preservatives are common allergens. Methylisothiazolinone (MI) caused so many reactions that the American Contact Dermatitis Society named it Contact Allergen of the Year in 2013. It still appears in some rinse-off products, wipes, and household cleaners. Formaldehyde releasers, such as DMDM hydantoin and quaternium-15, are another group worth avoiding if you’ve had reactions before.
Lanolin and propylene glycol are both common moisturizer ingredients. They have also been named Allergen of the Year by the American Contact Dermatitis Society (lanolin in 2023, propylene glycol in 2018). Most people with eczema use them without trouble. They’re worth checking if a moisturizer seems to make your skin worse.
Are Alcohol, Acids, and Retinoids Safe to Use With Eczema?
Alcohol: check which kind
Not every alcohol on a label is drying. Drying alcohols such as alcohol denat., SD alcohol, and isopropyl alcohol evaporate fast and take moisture with them, so avoid them, especially in toners and gels. Fatty alcohols such as cetyl, stearyl, and cetearyl alcohol are waxy ingredients that soften the skin. They’re in many eczema-friendly creams and are generally fine.
Exfoliating acids and retinoids
Glycolic acid, lactic acid, salicylic acid, and retinol all speed up how quickly skin cells are replaced. That can help with acne and sun damage, but on inflamed eczema skin they often sting and make the rash worse. During a flare, stop using them on the affected area. Once your skin has calmed, a dermatologist can tell you whether to restart them, how often, and where. Read more about how active ingredients work.
Urea is a useful moisturizer in lower strengths. Higher strengths, and benzoyl peroxide, can sting on broken or cracked skin.
What Ingredients Should You Look For Instead?
The aim is to repair and protect the skin barrier. These ingredients have a good track record for eczema-prone skin:
| Ingredient | What it does | Where to find it |
|---|---|---|
| Ceramides | Replace fats that are naturally part of the skin barrier | Barrier-repair creams and lotions |
| Petrolatum (petroleum jelly) | Seals in moisture and protects cracked skin | Ointments, healing balms |
| Glycerin | Draws water into the skin | Most gentle moisturizers |
| Colloidal oatmeal | Soothes itch; the FDA recognizes it as an over-the-counter skin protectant | Lotions, bath soaks |
| Dimethicone | Forms a breathable protective layer on the skin | Creams and barrier products |
Thicker usually works better. Ointments and creams hold moisture in more effectively than thin lotions. The American Academy of Dermatology recommends a fragrance-free moisturizer applied immediately after a bath, while your skin is still slightly damp. Our eczema care page suggests moisturizing twice a day with a plain product such as petroleum jelly.
If label-reading feels overwhelming, look for the National Eczema Association Seal of Acceptance, which marks products screened for ingredients known to irritate eczema-prone skin.
How Do You Read a Skincare Label When You Have Eczema?
You can check a label for the ingredients to avoid with eczema in under a minute:
- Look for “fragrance-free.” If you see fragrance, parfum, or a list of plant oils, put it back.
- Check the first five ingredients. They make up most of the product. Water, glycerin, petrolatum, or ceramides near the top is a good sign. Alcohol denat. is not.
- Scan for the preservatives in the table above, especially methylisothiazolinone.
- Don’t rely on front-of-pack claims. The FDA says there is no federal standard for the word “hypoallergenic,” and claims like “dermatologist-tested” or “natural” don’t tell you which ingredients are inside.
- Test new products first. Apply a small amount to the inside of your forearm once or twice a day for several days before using it on your face or a flare.
Cold weather makes all of this harder. Dry air outdoors and heating indoors pull moisture from the skin, so product choice matters more in the fall and winter. Our guide to dry skin in winter covers changes to your routine for the season.
Is It an Eczema Flare or an Allergy to a Product?
Sometimes a rash that looks like eczema is really contact dermatitis, a reaction to something touching the skin. Contact dermatitis is more common in people with eczema, and the two can look very similar. Clues that a product may be the cause:
- The rash appears exactly where you apply a product, such as your eyelids, hands, neck, or hairline.
- It flares a day or two after you start a new product or use an old one more often.
- It improves when you stop using the product, then returns when you start again.
Allergies can develop at any time, so a product you’ve used for years can suddenly start causing reactions. A dermatologist can help work out the cause, and in some cases may recommend patch testing to identify the specific allergen. Read more about the common triggers of contact dermatitis.
When Should You See a Dermatologist About Eczema?
Choosing gentler products helps, but it can’t replace treatment. If skincare alone isn’t keeping your eczema under control, see a board-certified dermatologist. Book an appointment if:
- Itching keeps you or your child up at night.
- The rash is spreading, or hasn’t improved after two to three weeks of gentle care.
- You see oozing, yellow crusts, pus, or pain, which can be signs of infection.
- You suspect a product allergy but can’t find the cause.
- Eczema affects your face, eyelids, hands, or genitals, where skin needs more careful treatment.
At Valley Skin Institute, Dr. Leslie Storey and our team diagnose and treat eczema at both of our Fresno locations. As your Fresno dermatologist, we’ll confirm whether you’re dealing with eczema, contact dermatitis, or something else, and build a plan that covers your skincare as well as prescription options when you need them. Learn more about eczema treatment at Valley Skin Institute.
Schedule an appointment online or call (559) 472-7546. Bring the products you’re using now. They’re often the quickest way to find out what’s causing the problem.
Frequently Asked Questions
Is natural skincare better for eczema?
Not necessarily. This is one of the most common eczema myths. Natural products often contain essential oils and plant extracts, which are among the most frequent irritants and allergens for eczema-prone skin. A plain, fragrance-free product with few ingredients is usually a safer choice than one labeled “natural” or “clean.”
Does “hypoallergenic” mean a product is safe for eczema?
No. The FDA notes there is no federal standard for the term “hypoallergenic,” so companies can use it without proving anything. Read the ingredient list, check that the product is fragrance-free, and look for the National Eczema Association Seal of Acceptance.
Are cetyl and stearyl alcohol bad for eczema?
No. They are fatty alcohols, which are waxy, moisturizing ingredients found in many creams made for eczema. The alcohols to avoid are drying ones, such as alcohol denat., SD alcohol, and isopropyl alcohol.
Can I use retinol if I have eczema?
Avoid retinol on areas with an active flare, because it can sting and worsen inflammation. Some people with eczema can use retinoids on clear skin, introduced slowly with a good moisturizer. Ask your dermatologist before you start.
Why would a product I’ve used for years suddenly cause a rash?
Skin allergies can develop after repeated exposure, so you can become allergic to an ingredient you used without problems for years. If a rash appears where you apply a familiar product, stop using it and see a dermatologist, who may recommend patch testing.
