New Skin Care on GLP-1: Test Before Adding It

Before adding a new cream during GLP-1 treatment, test a small area first.

Watch for a reaction

AAD says to wash off a product promptly and stop using it if a reaction develops. Severe symptoms that do not improve with a cool compress or petroleum jelly may need a dermatologist. [1]

A home spot check differs from medical testing

If itching and rashes recur, a dermatologist may recommend patch testing to investigate allergic contact dermatitis. AAD describes allergens placed beneath patches, usually on the back, for 48 hours, followed by an office visit and another assessment four to seven days after application. Follow the office's instructions about keeping patches in place and dry. [2]

Do not construct a home version of that medical test. AAD notes that a first round can miss the cause, and additional substances may need testing. [2]

What this check cannot tell you

These US guidance pages do not show that a product prevents GLP-1-associated appearance changes. A spot check does not establish effectiveness. For an existing flaky-skin concern, read our dry-skin care guide.

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This article provides general education, not a diagnosis or an individual treatment plan. Medication information refers to US sources. Discuss medication, nutrition and cosmetic treatment decisions with qualified clinicians.