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When to Be Concerned In a research context, further evaluation may be warranted if observations include: Rapidly expanding redness beyond the injection site Severe or escalating pain Persistent swelling lasting multiple days Signs of infection (increasing warmth, spreading redness, discharge) Systemic symptoms such as generalized hives, shortness of breath, dizziness, or facial swelling Severe or systemic reactions should be treated as medically significant and require appropriate clinical evaluation

They are ideal for freezing the nasal or eye area thats swelling

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FDA Provided Clarity on GHK-Cu On May 14, 2026, the FDA restored non-injectable GHK-Cu to Category 1 of the 503A bulk drug substances list, confirming that the earlier withdrawal applied only to injectable routes of administration