Supplement
Supports broad cellular function with category-specific mechanisms.[2221,2265,2919, etc.]
Superscript reference numbers link to the Sources bibliography.
Composite Rating
Blends evidence depth, community direction, safety friction, and completeness.
Evidence Intensity
100/100
High depth from human/RCT/meta counts
Community Direction
7
Mixed / Neutral • confidence Moderate
Safety Friction
100/100
High signal from adverse/interaction markers
Data Completeness
100%
Studies 9 • mentions 11 • links 20
Not medical advice. This product is for educational and informational purposes only. It does not diagnose, treat, cure, or prevent any disease and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of a qualified healthcare provider with any questions regarding a medical condition.
FDA disclaimer: These statements have not been evaluated by the Food and Drug Administration. Dietary supplements are not intended to diagnose, treat, cure, or prevent any disease. Results may vary. Not intended for use by pregnant or nursing women, individuals under 18, or those with known medical conditions without physician consultation.
If you are experiencing a medical emergency, call 911 or your local emergency number immediately.
Goal alignment: Longevity, Metabolic Health, Energy.[113,303,340, etc.]
Dose guide: Human-study daily dose: 2500 mg-5000 mg/day (higher-confidence extraction from PubMed abstracts)..[113,303,340, etc.]
Category
Other
Evidence Tier
HIGH
Daily Guide
Human-study daily dose: 2500 mg-5000 mg/day (higher-confidence extraction from PubMed abstracts).
Clinical Depth
Humans: 123 • RCTs: 66 • Meta: 1
Cohort / Real-World
Cohort signals: 0
Safety Markers
Adverse signals: 33 • Interactions: 85
Freshness, trend, and study timeline for this item
Status
Trend
→ Stable evidence base
Depth
203 total studies · 2 recent
Timeline
Animal-only studies
215
Total indexed
203
Human studies
123
In vitro / tissue
117
Interaction signals
85
Randomized trials
66
Weighted direction score: 7 (Mixed / Neutral)
High when >=2 human meta-analyses, or >=5 human RCTs with substantial human literature volume.
Animal-only studies
215
Total indexed
203
Human studies
123
In vitro / tissue
117
Interaction signals
85
Randomized trials
66
Safety adverse signals
33
Meta-analyses
1
Distribution of evidence by study design strength
Evidence Strength: High
Composite of study volume, RCTs, and meta-analyses
PMID 41168365 • 2026 Jan
Regular collagen peptide administration exerts anti-obesity effects in high-caloric diet-fed rodents-a systematic review with meta-analysis of animal trials.
Int J Obes (Lond)
Open PubMedPMID 31627309 • 2019 Oct 17
A Collagen Supplement Improves Skin Hydration, Elasticity, Roughness, and Density: Results of a Randomized, Placebo-Controlled, Blind Study.
Nutrients
Open PubMedPMID 24401291 • 2014
Oral intake of specific bioactive collagen peptides reduces skin wrinkles and increases dermal matrix synthesis.
Skin Pharmacol Physiol
Open PubMedPMID 23949208 • 2014
Oral supplementation of specific collagen peptides has beneficial effects on human skin physiology: a double-blind, placebo-controlled study.
Skin Pharmacol Physiol
Open PubMedPMID 37822045 • 2024 Feb
Low-molecular-weight collagen peptides supplement promotes a healthy skin: A randomized, double-blinded, placebo-controlled study.
J Cosmet Dermatol
Open PubMedPMID 37551682 • 2023 Dec
Collagen peptides supplementation improves function, pain, and physical and mental outcomes in active adults.
J Int Soc Sports Nutr
Open PubMedPMID 29337906 • 2018 Jan 16
Specific Collagen Peptides Improve Bone Mineral Density and Bone Markers in Postmenopausal Women-A Randomized Controlled Study.
Nutrients
Open PubMedPMID 34694676 • 2022 Feb
Myths and media in oral collagen supplementation for the skin, nails, and hair: A review.
J Cosmet Dermatol
Open PubMedPMID 36044324 • 2022 Nov 1
Collagen peptide supplementation for pain and function: is it effective?
Curr Opin Clin Nutr Metab Care
Open PubMedBenefit reports: 5
Adverse reports: 3
No-effect reports: 1
Mixed reports: 2
Unclear reports: 0
Signal confidence: 0.44
Benefits
Adverse
No Effect
Strong positive empirical sentiment with adequate confidence; boost recommendation priority.
Reddit evidence: 8 mentions (confidence 0.44) across Supplements, Biohackers.
Amazon signal: 1 products scanned (948 ratings) (confidence 0.79).
GNC signal: 0 products scanned (confidence 0.00) [BLOCKED].
PerimeterX / captcha block encountered.
Use adverse/interactions PubMed signal counts for screening; perform clinician review before high-dose or multi-drug stack use.
Lowest observed monthly cost signal: $89.99 (FlavCity Chocolate Protein Powder, Organic Cocoa with Collagen Peptides, Reishi & Cordyceps Mushrooms - Focus, Skin, Hair & Joint Support - 100% Grass Fed Whey All in One Smoothie, 20 Servings).
Human-study daily dose signal: 2500 mg-5000 mg/day (confidence HIGH).
Extracted from 5 dosing mentions across 4 PubMed studies (mg/day).
Imported legacy community score: 9.0/10 (heuristic mapping confidence 1.00).
Imported legacy monthly cost signal: ~$20.00.
Legacy community note: Massively popular. Users consistently report improved skin, stronger nails, and reduced joint pain. Before/after skin photos common in communities. One of the most "visible" results supplements.
post • r/Supplements • mixed
Collagen peptides side effects I am taking a high quality collagen peptides supplement (2500) since a few months. I don't think there is any effect on be it my skin, nails, hair or joints (I do know it's not a very high dose). However, sin…
Open mentionpost • r/Supplements • benefit
What collagen peptides supplement do you guys use that works for both beauty and joint health? Preferably one with vitamin C as well. Thanks!
Open mentionpost • r/Biohackers • unclear
80-90% of Skin Aging is Attributed to UV radiation UV Index Forecasting, SPF Protection and {maybe} Astaxanthin are ways to protect your skin against the damaging effects of UV light. Collagen is also affected as we age, Copper, Glycine, a…
Open mentionpost • r/Supplements • no_effect
I was skeptical about collagen peptides until I stopped taking them I rlly didn’t think collagen peptides were doing much for me at first. I was taking them daily for abt half a year and didn’t feel some big obvious change, so I figured ye…
Open mentionpost • r/Biohackers • benefit
Might have destroyed my mind, body and hormones... Don't trust supplement labels. Seeking recovery advice. Male, age 29 Hey everyone, I've been taking AstroFlav Elevated daily at the full serving size of 4 capsules per day for almost 2 yea…
Open mentionpost • r/Biohackers • benefit
Recovering from years of alcoholism: all the data after 1,500 days of rebuilding **Disclaimer: This is an N=1, just my personal experience anecdotally. Nothing more, nothing less.** I don't post often, but this milestone felt worth sharing…
Open mentionpost • r/Supplements • unclear
Feedback supplement stack! Supplement stack feedback! Please read the below. In the picture it is not the full stack and some I take at half serving etc, like vit C lipsomal I take half dose instead of full 2.5g Let me know any feedback, a…
Open mentioncomment • r/Supplements • mixed
Collagen peptides are usually pretty easy on the body, so most people don't see major side effects beyond the occasional mild bloating if they take larger doses. The weight change you’re noticing is unlikely to be from collagen itself, esp…
Open mentioncomment • r/Supplements • benefit
If you do get collagen, please note that the only relevant ones are types 1-3, mostly 1 and 3. If you see stuff like type X, it’s partially marketing. You also need 20g+ daily to have results. I trust [Vital Proteins](https://www.costco.co…
Open mentioncomment • r/Supplements • benefit
I use Vev Multi Collagen Peptides. Whether it works or not... who knows.
Open mentionamazon
FlavCity Chocolate Protein Powder, Organic Cocoa with Collagen Peptides, Reishi & Cordyceps Mushrooms - Focus, Skin, Hair & Joint Support - 100% Grass Fed Whey All in One Smoothie, 20 Servings
Rating: 4.2 | Reviews: 948
Open productEvidence Sources
Community Sources
PUBMED • Humans + preclinical triage
Counts aggregated from automated literature sweep and tiering rules.
Outcome: Tier HIGH; humans 123, RCTs 66, meta-analyses 1.[2221,2265,2919, etc.]
Open sourcePUBMED • 2026 • Human evidence curation set
PMID 41168365 from Int J Obes (Lond).
Outcome: See linked PubMed abstract for methods and outcomes.[2221,2265,2919, etc.]
Open sourcePUBMED • 2019 • Human evidence curation set
PMID 31627309 from Nutrients.
Outcome: See linked PubMed abstract for methods and outcomes.[2221,2265,2919, etc.]
Open sourcePUBMED • 2014 • Human evidence curation set
PMID 24401291 from Skin Pharmacol Physiol.
Outcome: See linked PubMed abstract for methods and outcomes.[2221,2265,2919, etc.]
Open sourcePUBMED • 2014 • Human evidence curation set
PMID 23949208 from Skin Pharmacol Physiol.
Outcome: See linked PubMed abstract for methods and outcomes.[2221,2265,2919, etc.]
Open sourcePUBMED • 2024 • Human evidence curation set
PMID 37822045 from J Cosmet Dermatol.
Outcome: See linked PubMed abstract for methods and outcomes.[2221,2265,2919, etc.]
Open sourcePUBMED • 2023 • Human evidence curation set
PMID 37551682 from J Int Soc Sports Nutr.
Outcome: See linked PubMed abstract for methods and outcomes.[2221,2265,2919, etc.]
Open sourcePUBMED • 2018 • Human evidence curation set
PMID 29337906 from Nutrients.
Outcome: See linked PubMed abstract for methods and outcomes.[2221,2265,2919, etc.]
Open sourcePUBMED • 2022 • Human evidence curation set
PMID 34694676 from J Cosmet Dermatol.
Outcome: See linked PubMed abstract for methods and outcomes.[2221,2265,2919, etc.]
Open sourcePUBMED • 2022 • Human evidence curation set
PMID 36044324 from Curr Opin Clin Nutr Metab Care.
Outcome: See linked PubMed abstract for methods and outcomes.[2221,2265,2919, etc.]
Open source