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However, based on related compounds and user reports, potential side effects may include: Injection site irritation (redness, itching, or tenderness) Fatigue or drowsiness Possible disruption of glucose metabolism Increased hunger or short-term blood sugar fluctuations Older research from 1978 found that similar C-terminal HGH fragments caused temporary rises in blood glucose and insulin levels in animals, indicating possible insulin sensitivity issues

The findings demonstrated significant reductions in melanin indices, with over 90% of participants reporting moderate skin lightening after eight weeks

Unfer V, Dinicola S, Lagan AS, Bizzarri M

However, specific roles of E2 signaling pathways during skin homeostasis and repair remain to be fully elucidated