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Hair Effects

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

This product looks safe

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

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

Biotin, zinc, and copper support keratin production and follicle health, while saw palmetto is used to manage androgenetic alopecia. Research provides moderate evidence for these ingredients in supporting hair growth and strength. The overall evidence coverage for this specific formulation is limited.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

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

Label Data

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

Supplement Facts — Evidence Check

600 mcg (2000% DV)
20.0× RDA — above typical dose 27 studies (A:0, B:11)
15 mg (136% DV)
1.4× RDA — within safe limits 263 studies (A:6, B:134)
3 mg (333% DV)
3.3× RDA — above typical dose (UL: 10 mg) 37 studies (A:0, B:11)
500 mg
Market median: 500.0mg (193 products) 7 studies — no high-quality reviews
Market median: 320.0mg (426 products) 26 studies (A:0, B:5)
Market median: 1000.0mg (2 products)
L-Cysteine
200 mg
Market median: 100.0mg (284 products) 10 studies (A:0, B:4)
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) 11 studies (A:1, B:3)
Market median: 260.0mg (249 products) 158 studies (A:4, B:61)

Other Ingredients

Hypromellose Microcrystalline Cellulose Leucine
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

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.

Metadata

Product Details

UPC / SKU0 26664 27239 3
DSLD Entry Date2024-11-22
Product TypeOther Combinations
FormCapsule
BrandDaVinci Laboratories
DSLD ID322171
Data Updated2026-04-11
Research

Research Evidence

31
Research Sources
53
Avg Quality
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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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.