Isotretinoin Linked to No Height Change in Study
New research shows no significant impact on adult height from isotretinoin, alongside updated safety guidelines for skin care.
Updated on Oct. 13, 2026 in Nutrition
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A large study of over 379,000 recruits found no difference in adult height for those using isotretinoin. The findings were presented at a Carlsbad symposium by Dr. Carol Cheng.
Why it matters
Patients and parents have long held concerns regarding potential side effects of isotretinoin on bone growth and safe procedure timing. These findings provide clarity on long-term physical outcomes and clinical safety protocols for acne treatment.
A 2026 study tracked 368,338 men and 10,858 women to assess growth outcomes. Expert consensus also confirmed 82% agreement that energy-based devices are safe during treatment.
The players
Dr. Carol Cheng
A researcher at the University of California, Los Angeles who presented new dermatological findings.
The details
Clinical guidelines now suggest continuing medication for two months after skin clears to reduce relapse risk, which historically ranges between 10% and 60%. Research also shows that non-ablative laser therapies do not require the previously assumed waiting periods.
Timeline
Danish researchers tracked military recruits for height data between 2001 and 2015.
A task force evaluated non-ablative laser therapy delays in 2017.
An international consensus report on energy-based devices was published in 2022.
A systematic review regarding acne supplements was released in 2023.
A 2025 study linked cumulative isotretinoin dosages to lower relapse risk.
Health Landscape
These findings refine the standards set by the 2022 international consensus panel on energy-based devices. The data marks a shift toward more flexible clinical management of patients undergoing acne therapy.
Patients may now feel more confident regarding the safety of combining laser procedures with their current acne regimen. These findings also offer practical clarity on the appropriate duration of treatment to minimize the risk of future relapses.
The takeaway
Patients should discuss cumulative dosage goals with their dermatologist to optimize skin clearance and reduce the risk of relapse. These results emphasize that long-term physical development concerns may not be linked to this common acne medication.
Further reading
For more information on dietary and clinical approaches to skin health, visit our Nutrition section.
Source note: This article includes information reported by Medscape.
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