For most facial serums, moisturizers, and hair tonics, a concentration of 1% to 3% is the sweet spot
As these medications become among the most widely prescribed in the world, the ability to tailor treatment based on genetic profile or to target specific clinical outcomes such as cardiovascular risk reduction could transform prescribing practices well beyond their current primary use in obesity and diabetes management Sources New 23andMe Research Institute Study Identifies Genetic Predictors for GLP-1 Weight Loss Efficacy and Side Effects 23andME April 8, 2026 Genetic variations linked to weight loss, side effects from GLP-1 drugs Reuters April 10, 2026
Her weight and her cholesterol returned to where they were before Wegovy
doi: 10.1016/j.phymed.2025.156801 212
Testing shows where you are today
This medical supervision protects patient safety but requires appointments, copays, and ongoing healthcare system engagement