12. Minimal Side Effects for Most Users

One of collagen’s key advantages is its favorable safety profile, with most users experiencing minimal or no adverse effects. Unlike some aggressive beauty treatments that can cause irritation or downtime, collagen supplements are generally well-tolerated.
A review published in the Journal of Drugs in Dermatology found that reported side effects are rare and typically mild, such as digestive discomfort in sensitive individuals. This gentle nature makes collagen an accessible choice for a wide range of people seeking visible beauty benefits without the risks associated with harsher alternatives.