Trends and future directions in nutraceutical skin applications include the use of collagen (where many clinical studies have been reported), along with antioxidants and bioactives
The study noted that regular supplementation of whey protein mitigated the decrease of glutathione that is correlated with intense physical activity
First-week mild fatigue and transient digestive shifts are also commonly described in user reports
Interest in DSIP research declined over time, partly because of mixed clinical findings and partly because peptide research funding shifted toward other compounds
Take-home message: - Peptides and assorted experimental drugs, like TB-500 and MK-677, are being recommended by fitness influencers to grow bigger muscles, lose fat, and recover from injuries faster - These drugs, many of which are claimed to boost levels of growth hormone, were studied in rodents and very small groups of human volunteers before being abandoned for not being beneficial or for causing unacceptable side effects - They are banned by the World Anti-Doping Agency and appear to be illegal in Canada and the United States, but can be purchased online