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Ultimate Hair Strength

product on market Capsule Joyce Giraud Safety: 90/100
90/100

This product looks safe

  • Contains proprietary blend — exact ingredient amounts not disclosed
  • 29% of ingredients have research evidence
B Label Compliance Grade

What the Evidence Says

AI-generated · Qwen 3.6 · methodology

This formula contains biotin and pantothenic acid, which are moderately supported by research for maintaining hair health. Vitamin C and D3 provide general nutritional support, though evidence for their direct impact on hair strength is limited. The ingredient profile maintains a high safety score of 90/100.

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

Alerts

Safety Alerts

Contains proprietary blend — exact ingredient amounts not disclosed

Label

Product Label

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

Label Data

2 Capsule(s)
Serving Size
30
Servings
Other Combinations
Product Type
29%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Total Calories
5 Calorie(s)
Vitamin C
100 mg (166.66% DV)
1000 IU (250% DV)
1.7× RDA — within safe limits 608 studies (A:16, B:251)
25 mg (250% DV)
5.0× RDA — above typical dose 2 studies — no high-quality reviews
10000 mcg (3333.2% DV)
333.3× RDA — above typical dose 27 studies (A:0, B:11)
Cynatine HNS
500 mg
Proprietary Blend
216 mg

Other Ingredients

Magnesium Stearate Gelatin
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Suggested Use: Take two (2) capsules daily.

Warnings & Precautions

Warning: Keep out of reach of children

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

Formulation Notes

Joyce's ultimate hair strength is the scientifically backed solution for strong lustrous, healthy hair, beautiful vibrant skin, and healthy nails, in addition to collagen and biotin.

Ultimate hair strength contains cynatine HNS which has been clinically shown to improve hair strength, enhance hair volume and increase shine. Ultimate Hair strength also contains Joyce's Pure4 blend of the world's best oils which combine to provide a rich source of vitamins, antioxidants and fatty acids, straight from mother nature.

Does not contain: soy, wheat, lactose, starch, yeast, GMO's or artificial flavors. Gluten Free

Manufactured in the U.S.A. (Made with the finest imported and domestic ingredients) Miracle Elixir Collections Clinically tested to: Reduce hair loss due to everyday activities Enhance hair volume Promote hair strength and hair growth Support healthy skin & nails

Non GMO & Gluten Free

Manufactured in the USA

Additional Information

Because Beauty is in you.

Studies show reduced hair loss from everyday activities can be seen within 30-60 days.

GMP Certified

Metadata

Product Details

UPC / SKU0 711237 970423
DSLD Entry Date2023-04-21
Product TypeOther Combinations
FormCapsule
DSLD ID271681
Data Updated2026-04-11
Research

Research Evidence

371
Research Sources
54
Avg Quality
148
Meta Analysis
82
Systematic Review
71
Rct
62
Clinical Trial
2
Regulatory Source
1
Cochrane Review
1
Narrative Review
1
Other
1
Openfda Safety
A Vitamin C supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015 PubMed DOI
A Vitamin C supplementation for the primary prevention of cardiovascular disease
Systematic Review The Cochrane database of systematic reviews 2017 PubMed DOI
A Vitamin C for preventing and treating the common cold
Meta Analysis The Cochrane database of systematic reviews 2013 PubMed DOI
A Vitamin C for preventing and treating pneumonia
Meta Analysis The Cochrane database of systematic reviews 2013 PubMed DOI
A Vitamin E supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015 PubMed DOI
A Vitamin C supplementation for prevention and treatment of pneumonia
Meta Analysis The Cochrane database of systematic reviews 2020 PubMed DOI
A Vitamin C supplementation for prevention and treatment of pneumonia
Systematic Review The Cochrane database of systematic reviews 2021 PubMed DOI
A Nutritional interventions for preventing and treating pressure ulcers
Meta Analysis The Cochrane database of systematic reviews 2024 PubMed DOI
A Does Vitamin C Supplementation Provide a Protective Effect in Periodontal Health? A Systematic Review and Meta-Analysis
Meta Analysis International journal of molecular sciences 2024 PubMed DOI
A Circulating vitamin C concentration and risk of cancers: a Mendelian randomization study
Meta Analysis BMC medicine 2021 PubMed DOI
View all evidence for Vitamin C →
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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.