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news·October 9, 2026

Doctors say stress from a bad relationship can show up as acne, hair loss and dull skin

After a viral social media trend claimed breakups trigger glow-ups, Allure asked medical experts what's actually behind the physical toll of relationship stress.

Photo: Allure

A wave of women on TikTok, Instagram and Reddit have described skin, hair and overall health improving after ending relationships with partners they described as stressful, prompting Allure to ask medical professionals whether the phenomenon has a physiological basis. Psychotherapist Laurel Steinberg, PhD, said women in heterosexual relationships can carry a heavier mental and emotional load at home, which she says leads to more chronic stress and worse health markers than their partners experience.

Board-certified dermatologist Keira Barr, MD, said heightened cortisol and inflammatory signaling "can send the skin down a path of breakouts, sensitivity, dehydration, dullness, slower healing, and a generally less rested appearance." Plastic surgeon Lara Devgan, MD, said removing a stressful partner can function like a beauty intervention, since people often also start sleeping better, eating better and following through on skincare routines once the stress is gone.

A 2023 study by researchers at Howard University, the University of Montréal and Montréal's Mental Health University Institute tracked more than 2,000 heterosexual couples over four years and found women's allostatic load, a measure of cumulative stress on the body, was more strongly tied to their male partners' stress levels than the reverse, regardless of whether the relationship was happy or unhappy. Clinical psychologist Molly Burrets, PhD, said she regularly sees clients whose stress shows up physically as hair thinning, breakouts, dark circles and fatigue, and that those symptoms often improve once an unhealthy relationship ends.

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