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2019, Abbasi et al

Immune effects are restorative, not overstimulating: It rebalances T-cell ratios, upregulates IL-2 in aged tissues, and improves neuroimmune integration, suggesting a targeted recalibration of immune tone rather than indiscriminate boosting. It restores circadian and hormonal rhythms: By stimulating melatonin synthesis, protecting pineal structure, and re-entraining clock genes, Epitalon may counter the widespread circadian drift of aging, with implications far beyond sleep, touching immunity, metabolism, and neuroprotection

J Clin Aesthetic Dermatol

In the U.S., concentrations of 4% or higher are available as a prescription or compounded to treat stubborn pigment conditions like melasma, says Dr

Apply sunscreen daily: Sun protection is non-negotiable