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Retinoid discontinuation creates the benchmark comparison since topical vitamin A derivatives (tretinoin, adapalene, retinol) represent gold-standard anti-aging treatment with decades of research and user experience documenting post-treatment outcomes

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10.1002/jps.21924 27 DincaA.ChienW.-M.ChinM

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Cycle Guidelines Approach Standard Duration 8-12 weeks Off Period 4-8 weeks Best For General research context Approach Extended Duration 12-16 weeks Off Period 4-8 weeks Best For Longer observation windows Time off is commonly used to limit receptor desensitization