The difference between injectable and oral forms is not subtle
Physiol Rev 87, 1409-1439
Collagen Tripeptide : Reduce wrinkles, Anti aging
10.1016/S0141-0229(02)00321-6
Some individuals may experience adverse events, including gastrointestinal issues and hypoglycemia
Two investigators (HW and TG) independently performed the data extraction from each publication using a standardized form: publication data, baseline characteristics of the study population (sample size, sex, age, body mass index (BMI), body weight, abdominal circumference, waist-to-hip ratio, visceral adipose tissue (measured by computed tomography, magnetic resonance imaging, or dual-emission X-ray absorptiometry)), duration of follow-up, weight change during treatment and after treatment discontinuation, description of the weight management group and control group