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Reconstitution Fluid: When preparing the sample for assay analysis, gently introduce bacteriostatic water or sterile normal saline down the inner glass wall of the vial

Step 3: Draw your calculated volume of BAC water Using the larger syringe (23ml), draw an amount of air equal to your calculated BAC water volume

Pooling across the field, a 2025 meta-analysis of seven randomized controlled trials, covering 456 participants, reported a standardized mean difference of -0.72 for wrinkle reduction, though the analysis noted high heterogeneity between studies and that roughly 40% of trials had industry funding both factors that warrant caution in interpreting the pooled effect size