3 C, E )
Multiple human studies confirm measurable improvements in skin thickness, firmness, and fine lines
Reactions that spread beyond the immediate injection area, involve significant swelling, or are accompanied by fever or systemic symptoms require medical evaluation
Prepared solution: Stability depends on concentration, pH, diluent, sterility, container, preservatives, and temperature
If fine lines are worsening progressively without improvement, you may be experiencing excessive MMP activity, the "copper uglies" phenomenon
This conservative approach allows for assessment of individual tolerance before increasing to the 2-5mg range used in more intensive protocols