Home/ Supplements/ Niacin/ Extra Strength Hair Formula

Extra Strength Hair Formula

product on market Tablet or Pill Mason Natural Safety: 94/100
94/100

This product looks safe

  • Niacin: 70mg is 2.0× the Tolerable Upper Intake Level (35mg)
  • Folate: 1333mg is 1333.0× the Tolerable Upper Intake Level (1.0mg)
  • 62% of ingredients have research evidence
D Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

This formula contains B vitamins, including biotin and pantothenic acid, which are essential for keratin production and hair follicle health. Research provides moderate evidence that these nutrients support hair growth when deficiencies are present. However, the overall evidence coverage for this specific ingredient profile is limited.

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

Alerts

Safety Alerts

Niacin: 70mg is 2.0× the Tolerable Upper Intake Level (35mg)

Folate: 1333mg is 1333.0× the Tolerable Upper Intake Level (1.0mg)

Label

Product Label

Label for Extra Strength Hair Formula
Open Full PDF View on NIH DSLD →
Details

Label Data

2 Tablet(s)
Serving Size
30
Servings
Other Combinations
Product Type
62%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

70 mg (350% DV)
Exceeds UL by 2.0× (UL: 35 mg) 196 studies (A:5, B:63)
1333 mcg DFE (200% DV)
Exceeds UL by 1333.0× (UL: 1.0 mg) 226 studies (A:10, B:105)
12 mcg (200% DV)
5.0× RDA — above typical dose 139 studies (A:1, B:44)
200 mcg (66% DV)
6.7× RDA — above typical dose 27 studies (A:0, B:11)
200 mg (2000% DV)
40.0× RDA — above typical dose 2 studies — no high-quality reviews
Calcium
250 mg (20% DV)
Iron
4 mg (22% DV)
300 mcg (200% DV)
2.0× RDA — within safe limits 245 studies (A:4, B:133)
30 mg (200% DV)
2.7× RDA — within safe limits 263 studies (A:6, B:134)
10 mg (500% DV)
4.3× RDA — above typical dose (UL: 11 mg) 9 studies — no high-quality reviews
1.8× RDA — within safe limits 38 studies (A:1, B:7)
250 mg
Market median: 550.0mg (217 products) 29 studies (A:0, B:5)
60 mg
Market median: 500.0mg (9 products) 7 studies — no high-quality reviews

Other Ingredients

Microcrystalline Cellulose Croscarmellose Sodium Stearic Acid Magnesium Stearate Silica Brewers Yeast Pharmaceutical Glaze Talc
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Directions: Adults - take two tablets daily, preferably with food, as a dietary supplement.

Warnings & Precautions

Warning: Accidental overdose of iron containing products is a leading cause of fatal poisoning in children under 6. In case of accidental overdose, call a doctor or poison control center immediately. Poison control center: 1-800-222-1222

Warning: If you are pregnant, nursing, taking any medications or planning any medical procedure, consult your physician before use.

Discontinue use and consult your physician if any adverse reactions occur.

Keep out of reach of children.

Tamper-Evident Seal: Do not use product if seal appears tampered.

Formulation Notes

May support healthy hair

Guaranteed no added: sugar, starch, soy, corn, wheat, dairy, fish, tree nuts, peanuts, egg, fragrance, artificial colors, flavors, preservatives, crustacean/shellfish, sodium free.

Soy free

Additional Information

Mason Guarantee Laboratory Tested cGMP Certified Good Manufacturing Practice Certified

Mason Natural Est. 1967

Store in a dry place under controlled room temperature: 20 degrees - 25 degrees C (68 degrees - 77 degrees F).

Metadata

Product Details

UPC / SKU3 11845 12275 9
DSLD Entry Date2020-02-26
Product TypeOther Combinations
FormTablet or Pill
BrandMason Natural
DSLD ID214453
Data Updated2026-04-11
Research

Research Evidence

241
Research Sources
55
Avg Quality
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 PubMed DOI
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 PubMed DOI
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 PubMed DOI
A A terminal metabolite of niacin promotes vascular inflammation and contributes to cardiovascular disease risk
Meta Analysis Nature medicine 2024 PubMed DOI
A Meta-analysis and imputation refines the association of 15q25 with smoking quantity
Meta Analysis Nature genetics 2010 PubMed DOI
A Genome-wide meta-analyses identify multiple loci associated with smoking behavior
Meta Analysis Nature genetics 2010 PubMed DOI
A Antidepressants for smoking cessation
Meta Analysis The Cochrane database of systematic reviews 2014 PubMed DOI
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 PubMed DOI
B Assessment of the Role of Niacin in Managing Cardiovascular Disease Outcomes: A Systematic Review and Meta-analysis
Meta Analysis JAMA network open 2019 PubMed DOI
B Association Between Lowering LDL-C and Cardiovascular Risk Reduction Among Different Therapeutic Interventions: A Systematic Review and Meta-analysis
Meta Analysis JAMA 2016 PubMed DOI
View all evidence for Niacin →
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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.