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topical · for dry skin & eczema (atopic dermatitis)

Colloidal Oatmeal

Reviewed by the Nimbera editorial team · Last updated May 2026

Cerio et al. (n=multiple RCTs reviewed) found that avenanthramide compounds in colloidal oatmeal inhibit NF-kB activity and release of proinflammatory cytokines and histamine, with documented efficacy in atopic dermatitis. PMID 20865844.$8-$18 per tube or tub

How to use

Apply colloidal oatmeal cream or lotion 2-3 times daily to affected areas, especially within 3 minutes of bathing while skin is still damp. For baths, add 1 cup of finely ground colloidal oatmeal to lukewarm water and soak for 10-15 minutes.

How it works

Colloidal oatmeal contains avenanthramides that block NF-kB signaling, reducing release of inflammatory cytokines and histamine. It also forms a physical barrier on the skin surface, locking in moisture and reducing transepidermal water loss.

Where to buy

Aveeno Eczema Therapy Moisturizing Cream (Target, CVS, Amazon); CeraVe Moisturizing Cream with colloidal oatmeal (Walmart, Walgreens); Burt's Bees Eczema Therapy Moisturizing Lotion (Target, Amazon).

Typical cost: $8-$18 per tube or tub

Safety notes

Avoid if you have a known oat or gluten allergy. Patch-test before applying to large areas. Not a replacement for prescription topical corticosteroids in moderate-to-severe flares.

Drug & supplement interactions

  • Always tell your doctor or pharmacist about any supplements you take.
  • Interactions can occur with prescription medications, blood thinners, and immunosuppressants.
  • Herbal remedies can affect how the body absorbs or metabolises drugs.
  • Check drugs.com interactions checker before starting.

Clinical source

Cerio et al., Mechanism of action and clinical benefits of colloidal oatmeal for dermatologic practice, J Drugs Dermatol, 2010

This information is compiled from primary clinical literature and is for informational purposes only. It is not a substitute for professional medical advice. Read our full disclaimer.