In comparison to many low-quality vendors, PureRawz provides satisfactory assurance of product quality and has a decent catalog
Objective measurements Depending on your goals, track relevant objective metrics: Body composition: Weight, body fat percentage, circumference measurements, progress photos Performance: Strength numbers, endurance metrics, recovery indicators Health markers: Blood pressure, fasting glucose, HbA1c if using GH or GLP-1 peptides Healing: Range of motion, pain scales, functional capacity tests The peptides before and after article shows what realistic progress looks like
Practitioners also carefully screen patients: for example, they check for metal allergies (since GHK-Cu contains copper) and discuss alternative evidence-based treatments
Some companies can pay for testing and certifications from third parties like NSF and USP