People mainly take Vital Proteins Collagen for focus, sleep, mood. Based on 4 first-hand reports and 4 meta-analyses & systematic reviews in the medical literature. Ranked #1398 of 1,974 overall.
Of reports that state an outcome, 33% are positive.
Of the people who reported each effect, the share who said it got better.
Systematic reviews and meta-analyses from PubMed, with their published conclusions.
At least one meta-analysis, or 5+ randomized controlled trials. The grade measures how much human research exists — read the conclusions below for what it found.
Conclusion: Vitamin D supplementation/fortification significantly reduced bone resorption markers in women. However, results were inconsistent for bone formation markers.
PubMed 38221822 ↗Conclusion: Results and Conclusion Our comparative analysis shows that there is an ill-defined distinction between CPCs and chondrocytes with respect to their cell surface expression (MSC markers and CPC-specific markers) and differentiation potential. Accumulating evidence indicates that the 2 subpopulations may be distinguished based on their growth kinetics and chondrogenic marker.
PubMed 29047310 ↗Conclusion: Clinical success has been demonstrated with the application of different TERM modalities for implant site development in the edentulous atrophic maxilla. However, indications are narrow and further study is needed. Clinical trials assessing meaningful outcomes, involving larger populations, and with longer follow-up are warranted to discern the effectiveness of the achieved results compared with a valid control.
PubMed 27228246 ↗Conclusion: Peptides display intriguing potential as nutrients for addressing global health challenges, including behavioral responses, aging, and metabolic syndrome. Future investigations would focus on bioavailability, optimizing dosage, and demographic-specific treatments.
PubMed 40649821 ↗As stated by users — not a recommendation. Follow the label or your doctor.
How often each side effect came up across all reports.
Verbatim quotes, shortened only — each links to the original discussion.
“I take the vital proteins, both the marine and regular one...all I can say is that it makes me sleepy haha.”
“Started to taking vital proteins collagen powder after workouts. Immediately noticed: very good improvement with libido/erections, more desire to music/life, more active...But… one problem. It sometimes kills my sleep.”
“The only one that ever did anything for me was Vital Proteins. It's actually been legit for me.”
User data from public discussions; research from PubMed. Information only, not medical advice — talk to a doctor before starting, stopping or combining anything. Data updated October 2, 2026. How we rate