Hair Effects

product on market Capsule DaVinci Laboratories 🟢 Safety: 100/100
Brand: DaVinci Laboratories
🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 47% of ingredients have research evidence
A Label Compliance Grade

Product Label

Label for Hair Effects
📄 Open Full PDF View on NIH DSLD →
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Label Data

3 Capsule(s) Serving Size
30 Servings
Other Combinations Product Type
47% Evidence Coverage

Supplement Facts — Evidence Check

600 mcg (2000% DV)
📊 20.0× RDA — above typical dose 📚 26 studies (Tier A: 0, B: 11)
RDA 0.03mg This product: 0.6mg
15 mg (136% DV)
✅ 1.4× RDA — within safe limits 📚 258 studies (Tier A: 6, B: 134)
RDA 11mg This product: 15mg UL 40mg
3 mg (333% DV)
📊 3.3× RDA — above typical dose (UL: 10 mg) 📚 36 studies (Tier A: 0, B: 11)
RDA 0.9mg This product: 3mg UL 10mg
500 mg
📊 Market median: 500.0mg (193 products) 📚 7 studies — no high-quality reviews
This product: 500mg
360 mg
📊 Market median: 320.0mg (426 products) 📚 24 studies (Tier A: 0, B: 5)
This product: 360mg
200 mg
📊 Market median: 1000.0mg (2 products)
This product: 200mg
L-Cysteine
200 mg
200 mg
📊 Market median: 100.0mg (284 products) 📚 10 studies (Tier A: 0, B: 4)
This product: 200mg
Horsetail Rush Herb Extract
100 mg
Pygeum africanum Bark Extract
75 mg
Plant Sterol Complex
75 mg
Gamma-Linolenic Acid, Powder
50 mg
Stinging Nettle Root Extract
50 mg
DIM
50 mg
📊 Market median: 200.0mg (3 products) 📚 10 studies (Tier A: 1, B: 3)
This product: 50mg
50 mg
📊 Market median: 260.0mg (249 products) 📚 156 studies (Tier A: 4, B: 61)
This product: 50mg

Other Ingredients

Hypromellose Microcrystalline Cellulose Leucine

Label Claims — Verification

❓ Nutrient
❓ All Other
❓ Structure/Function
All Other (100% of products) Structure/Function (91% of products) Nutrient (57% of products)

Target Groups

Vegetarian Adult (18 - 50 Years) Women (not pregnant or lactating) Gluten Free

Product Information

📋 Directions for Use

Suggested Use: As a dietary supplement, take 3 capsules daily with food. The daily amount can be divided between AM and PM, or as directed by your healthcare practitioner.

⚠️ Warnings & Precautions

Warning: If pregnant, nursing, or planning to become pregnant do not take this product.

Keep out of reach of children.

To obtain product information or report a serious adverse event, call 1-800-325-1776.

🧪 Formulation Notes

Hair Effects is a synergistic formula that contains well-recognized and scientifically researched nutrients to support the repair of damaged hair follicles and the health and growth of hair.

Color of this product may vary due to color variations of the natural ingredients.

A Dietary Supplement to Support Hair Health and Growth

For Men & Women

Vegetarian

Gluten Free Non-GMO

Additional Information

Truth We pledge total truth in labeling. Our family of products contains only the purest and most potent ingredients. Guaranteed.

Store in a cool, dry place.

Product Details

UPC / SKU 0 26664 27239 3
DSLD Entry Date 2024-11-22
Product Type Other Combinations
Form Capsule
Brand DaVinci Laboratories
DSLD ID 322171
Data Updated 2026-04-11

Research Evidence

31 Research Sources
53 Avg Quality Score
12 Meta Analysis
9 Systematic Review
5 Rct
2 Clinical Trial
1 Regulatory Source
1 Openfda Safety
B Pentasaccharides for the treatment of deep vein thrombosis
Meta Analysis The Cochrane database of systematic reviews 2017
PubMed DOI
B Quantitative comparison of the efficacy of clinical drug treatments for primary progressive multiple sclerosis
Meta Analysis Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia 2023
PubMed DOI
B Dietary interventions for multiple sclerosis-related outcomes
Meta Analysis The Cochrane database of systematic reviews 2020
PubMed DOI
B Interventions for infantile seborrhoeic dermatitis (including cradle cap)
Meta Analysis The Cochrane database of systematic reviews 2019
PubMed DOI
B Effect of varicocelectomy on sperm deoxyribonucleic acid fragmentation rates in infertile men with clinical varicocele: a systematic review and meta-analysis
Meta Analysis Fertility and sterility 2021
PubMed DOI
B Effect of feeding biotin on milk production and hoof health in lactating dairy cows: a quantitative assessment
Meta Analysis Journal of dairy science 2011
PubMed DOI
B Factitious Graves' Disease Due to Biotin Immunoassay Interference-A Case and Review of the Literature
Systematic Review The Journal of clinical endocrinology and metabolism 2016
PubMed DOI
B Effect of biotin on milk performance of dairy cattle: a meta-analysis
Meta Analysis Journal of dairy science 2011
PubMed DOI
B PROVIT: Supplementary Probiotic Treatment and Vitamin B7 in Depression-A Randomized Controlled Trial
Rct Nutrients 2020
PubMed DOI
B High-dose biotin for multiple sclerosis: A systematic review and meta-analyses of randomized controlled trials
Meta Analysis Multiple sclerosis and related disorders 2021
PubMed DOI
View all evidence for Biotin →

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