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Licorice skincare can cause irritation or allergy in some people. A soothing reputation does not guarantee tolerance. Licorice is also not an established skin-turnover active that makes purging an expected step; new bumps or a rash deserve attention to the whole formula and what else changed in your routine.
Irritation may involve persistent stinging, burning, dryness or redness after a product is introduced. Allergic contact dermatitis can involve itching, a rash or swelling and may develop after prior uneventful use. Appearance and timing alone do not reliably identify the cause.
Published case reports include contact allergy to Glycyrrhiza inflata root extract. A case report shows that a reaction can occur; it does not estimate how often every licorice product causes one. Preservatives, fragrance and other ingredients in the same formula can also be responsible.
Pigment-pathway or inflammation-related research is not evidence that licorice accelerates turnover in the way associated with some acne actives. Do not keep using a uncomfortable formula on the assumption that it is “bringing impurities out.”
If the product also contains a retinoid or exfoliating acid, that ingredient and the complete regimen need separate assessment. A new moisturizer base may also coincide with breakouts. The acne-prone serum guide explains how to match the step to a goal; persistent or severe acne belongs in an acne-care plan.
The American Academy of Dermatology recommends small-area testing before broader use. Use the product as directed and observe the area rather than testing on an already irritated patch. The AAD instructions give the method. This is a tolerance check, not the diagnostic patch testing a dermatologist uses.
Avoid an ingredient you know you are allergic to. Home testing does not clear a known allergy, and a negative test cannot guarantee that no reaction will occur later.
If the cause is unclear, a clinician may recommend diagnostic testing. Repeatedly trying different licorice extracts at home can make that assessment harder.
Oral licorice containing glycyrrhizin can affect blood pressure and potassium and interact with medicines. Those risks should not be converted into an unsupported claim that ordinary topical use has the same effects. Equally, a skincare article is not a reason to drink concentrated licorice tea or take supplements for your complexion. NIH guidance addresses oral and topical use separately.
Available cosmetic research cannot provide a blanket pregnancy or breastfeeding clearance for every extract and formula. Ask your clinician about the exact product, especially if it contains other actives. Do not infer topical safety from food use or from a trial that excluded pregnant participants. For broken skin, an active rash or procedure aftercare, follow clinician guidance rather than applying an ordinary cosmetic experimentally.
By Herbal Dynamics Beauty · Reviewed October 6, 2026.
