🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 67% of ingredients have research evidence
A Label Compliance Grade

Product Label

📸

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Label Data

2 Capsule(s) Serving Size
30 Servings
Amino acid/Protein Product Type
67% Evidence Coverage

Supplement Facts — Evidence Check

18 mg (113% DV)
✅ 1.3× RDA — within safe limits 📚 193 studies (Tier A: 5, B: 63)
RDA 14mg This product: 18mg UL 35mg
2 mg (118% DV)
✅ 1.5× RDA — within safe limits 📚 113 studies (Tier A: 3, B: 35)
RDA 1.3mg This product: 2mg UL 100mg
14 mg (280% DV)
✅ 2.8× RDA — within safe limits 📚 1 studies — no high-quality reviews
RDA 5mg This product: 14mg
3000 mcg (10000% DV)
📊 100.0× RDA — above typical dose 📚 26 studies (Tier A: 0, B: 11)
RDA 0.03mg This product: 3.0mg
15 mg (136% DV)
✅ 1.4× RDA — within safe limits 📚 258 studies (Tier A: 6, B: 134)
RDA 11mg This product: 15mg UL 40mg
1.7 mg (529% DV)
✅ 1.9× RDA — within safe limits 📚 36 studies (Tier A: 0, B: 11)
RDA 0.9mg This product: 1.7mg UL 10mg
Cynatine HNS
500 mg
📊 Market median: 167.0mg (311 products) 📚 182 studies (Tier A: 0, B: 65)
This product: 20mg
Bioperine
10 mg

Other Ingredients

Capsule Rice Bran Concentrate

Label Claims — Verification

Nutrient
All Other
Structure/Function
All Other (97% of products) Structure/Function (86% of products) Nutrient (36% of products)

Target Groups

Adult (18 - 50 Years)

Product Information

📋 Directions for Use

Directions: As a dietary supplement, take 2 capsules per day with 8 fl oz. of liquid.

⚠️ Warnings & Precautions

If you are pregnant, nursing or have a medical condition, consult your physician before use.

Do not use if inner seal is broken or missing.

🧪 Formulation Notes

Direct keratin protein Body Kitchen uses a clinically studied and patented form of direct keratin that is readily bioavailable and easily absorbable. To make this process highly-effective, we've included black pepper extract to improve absorption rate of all nutrients in the formula by 30% Full-cycle keratin We've added 3,000 mcg of biotin! This combination allows a constant cycle of keratin production - while keratin is ready for quick absorption, biotin engages in a break-down process that stimulates more keratin production in later stages. Backed by minerals such as zinc and copper, keratin enrich is an excellent choice for improving nail strength as well.

Clinically studied & patented ingredients

Premium hair & nail protein

Supports: Hair vitality + strong nails + damage repair

Fortified with Cyanite HNS

Solubilized | High-absorption | Bioavailable

Additional Information

Store in a cool, dry place.

#BodyByCollagen

Product Details

UPC / SKU 8 50001 18316 1
DSLD Entry Date 2022-10-24
Product Type Amino acid/Protein
Form Capsule
Brand Body Kitchen
DSLD ID 276320
Data Updated 2026-04-11

Research Evidence

241 Research Sources
55 Avg Quality Score
113 Meta Analysis
75 Systematic Review
32 Rct
11 Clinical Trial
3 Other
3 Regulatory Source
1 Cochrane Review
1 Narrative Review
1 Openfda Safety
A Niacin for primary and secondary prevention of cardiovascular events
Meta Analysis The Cochrane database of systematic reviews 2017
A Use of high potency statins and rates of admission for acute kidney injury: multicenter, retrospective observational analysis of administrative databases
Meta Analysis BMJ (Clinical research ed.) 2013
A Effect on cardiovascular risk of high density lipoprotein targeted drug treatments niacin, fibrates, and CETP inhibitors: meta-analysis of randomised controlled trials including 117,411 patients
Meta Analysis BMJ (Clinical research ed.) 2014
A A terminal metabolite of niacin promotes vascular inflammation and contributes to cardiovascular disease risk
Meta Analysis Nature medicine 2024
A Meta-analysis and imputation refines the association of 15q25 with smoking quantity
Meta Analysis Nature genetics 2010
A Genome-wide meta-analyses identify multiple loci associated with smoking behavior
Meta Analysis Nature genetics 2010
A Antidepressants for smoking cessation
Meta Analysis The Cochrane database of systematic reviews 2014
A Topical azelaic acid, salicylic acid, nicotinamide, sulphur, zinc and fruit acid (alpha-hydroxy acid) for acne
Meta Analysis The Cochrane database of systematic reviews 2020
B Assessment of the Role of Niacin in Managing Cardiovascular Disease Outcomes: A Systematic Review and Meta-analysis
Meta Analysis JAMA network open 2019
B Association Between Lowering LDL-C and Cardiovascular Risk Reduction Among Different Therapeutic Interventions: A Systematic Review and Meta-analysis
Meta Analysis JAMA 2016
View all evidence for Niacin →

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