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B: Group 2 degenerated nerve with S-100 staining, showing evidence of loss of cellularity in the endoneurium, and no Schwann cells or axons

Purity of the Ingredient: 99% (in aqueous solution)

But they may have additional requirements

Pharmaceutical companies conduct accelerated stability studies and real-time testing to determine exactly when a drug falls below that 90% threshold

Salee, P., & Norasetthada, L

Possible concerns may include: Nasal irritation if used intranasally Headache Dizziness Fatigue or unexpected sedation Anxiety changes or mood changes Nausea Allergic or immune reactions Medication interactions Product contamination Incorrect dosing Unknown long-term effects Safety risks can vary depending on the route of administration, dose, formulation, product quality, medical history, and other medications