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Excess glucocorticoid exposure suppresses GH secretion mainly through the increase in hypothalamic somatostatin tone, whereas low cortisol levels causes relative GHD that is reversible by glucocorticoid therapy (Giustinas effect) ( Figure 5 ) (104)

Skin and dermal rejuvenation: In vitro and in vivo skin models where Epithalon enhances fibroblast activation, reduces apoptosis, and promotes normalized extracellular matrix production (e.g., collagen and elastin), supporting more youthful dermal architecture

Emideltide (opioid withdrawal, chronic insomnia, narcolepsy)

Many patients describe this stage as feeling more rested rather than looking dramatically different

Users stopping retinoids frequently report rapid regression of benefits within 4-8 weeks including increased breakouts sometimes exceeding pre-treatment levels (retinoid rebound), accelerated fine line reappearance approaching or surpassing baseline, skin texture deterioration returning to pre-treatment roughness, and psychological dependency from dramatic visible decline creating pressure for continuous use despite side effect burden