$25.97 $0.86 per serving
Product analysis
SHINE combines nutrients that may help when low intake affects normal hair and nail health. The keratin preparation is not clearly matched to the one behind the nail findings, limiting expectations for added cosmetic benefits.
AI assessment of the formula, label and price. How scoring works
Nutrient Quality40
Selenium yeast and chromium picolinate have favourable form characteristics. The iodine description is unclear, and bamboo silica cannot be assumed to match better-characterised silicon preparations.
Ingredient Transparency74
All listed amounts and most forms are disclosed, supporting label comparisons. Several forms and a mixed-source breakdown are incomplete, leaving some preparation details less clear.
Value For Money39
Keratin offers favourable value within the serving cost. Several smaller ingredients are relatively costly, while many other comparisons remain uncertain.
Customer Satisfaction71
The available customer ratings are positive. The relatively small number of ratings limits the breadth of that picture.
Product Focus36
The clearest role is nutritional support when low intake affects normal hair, nail or energy functions. The keratin and silicon preparations do not clearly match the materials behind the relevant cosmetic findings.
- Format
Capsule - Container
- 120 Capsule(s)
- Per serving
- $0.86
- Customer rating
- 4.7 · 67 ratings
Goals
Impact
Moderate effect
Silicon · 2 mgBiotin · 30 mcgHorsetail · 100 mgKeratin · 500 mg
Horsetail Not classified
No linked studies yet.
Impact
High effect
Biotin · 30 mcgVitamin D · 20 mcgZinc · 11 mgVitamin C · 90 mgKeratin · 500 mg
Horsetail Not classified
No linked studies yet.
Impact
Moderate effect
Iodine · 150 mcgVitamin D · 20 mcgVitamin B5 · 5 mgRiboflavin · 1.3 mgThiamin · 1.2 mgVitamin B12 · 2.4 mcg
L-Tyrosine Not classified
No linked studies yet.
Vitamin B5 Not classified
No linked studies yet.
Impact
Highest effect
Folate · 400 mcg DFEVitamin B12 · 2.4 mcgVitamin D · 20 mcgSelenium · 55 mcgZinc · 11 mgVitamin C · 90 mg
Impact
High effect
Vitamin C · 90 mgZinc · 11 mgVitamin A · 900 mcgVitamin D · 20 mcgSelenium · 55 mcg
Impact
Moderate effect
Folate · 400 mcg DFEVitamin B12 · 2.4 mcgVitamin B6 · 1.7 NPVitamin D · 20 mcgThiamin · 1.2 mg
Ingredients
| Ingredient | Amount per serving | Score |
|---|---|---|
Vitamin A (Beta-Carotene) | 900 mcg | |
Vitamin C (Pureway-C) | 90 mg | |
Vitamin D3 (Cholecalciferol) | 20 mcg | |
Vitamin E (D-Alpha-Tocopherol Succinate) | 15 mg | |
Thiamin (Thiamine Hydrochloride) | 1.2 mg | |
Riboflavin | 1.3 mg | |
Niacin (Inositol Hexaniacinate) | 16 mg | |
Vitamin B6 (Pyridoxal 5-Phosphate) | 1.7 NP | |
Folate ((6S)-5-Methyltetrahydrofolic Acid, Glucosamine Salt) | 400 mcg DFE | |
Vitamin B12 (Methylcobalamin) | 2.4 mcg | |
Biotin | 30 mcg | |
Pantothenic Acid (Calcium D-Pantothenate) | 5 mg | |
Iodine (Potassium Iodine) | 150 mcg | |
Zinc (Zinc Bisglycinate Chelate) | 11 mg | |
Selenium (Selenium Yeast) | 55 mcg | |
Copper (Copper Citrate) | 0.45 mg | |
Chromium (Chromium Picolinate) | 70 mcg | |
Methylsulfonylmethane | 1 Gram(s) | |
Cynatine (Keratin) | 500 mg | |
L-Tyrosine | 500 mg | |
Hyaluronic Acid (Sodium Hyaluronate) | 100 mg | |
Horsetail herb powder | 100 mg | |
Silica (Bamboo stem/shoot extract) | 2 mg | |
Lutein (Aztec Marigold flower extract) | 2 mg | |
Lycopene (Lycobeads) | 2 mg |
Keratin · 500 mg OverallScore100
Iodine (Potassium Iodine) · 150 mcg OverallScore74
Each serving supplies 150 mcg of iodine. The cost per serving is moderately high. The iodine form is unspecified. The amount is clearly listed.
How this ingredient is rated
Active Ingredient Quality & Bioavailability61
The iodine form is unspecified. No marine source is indicated, so marine-specific sourcing concerns do not apply.
Iodine Form & Bioavailability
The iodine form is unspecified.
Marine Source Purity & Sourcing
No marine source is indicated, so marine-specific sourcing concerns do not apply.
Dose, Safety & Label Transparency100
Each serving supplies 150 mcg of iodine. The iodine amount is stated.
Dosage Efficacy for Daily Support
Each serving supplies 150 mcg of iodine.
Dosage Safety & Upper Limits
That amount is below the stated adult upper intake limit.
Elemental Iodine Transparency
The iodine amount is stated.
Value50
The cost per serving is moderately high.
Price Per Effective Serving
The cost per serving is moderately high.
Tyrosine · 500 mg OverallScore76
The serving provides 500 mg of tyrosine, within the range used for acute cognitive support, at a high cost for the amount. It uses L-tyrosine. GMP manufacturing is indicated, but specific raw material purity details are not provided.
How this ingredient is rated
Active Ingredient Quality & Bioavailability85
The form is L-tyrosine. GMP manufacturing is indicated, but specific raw material purity details are not provided.
Tyrosine Chemical Form
The form is L-tyrosine.
Purity and Sourcing Signals
GMP manufacturing is indicated, but specific raw material purity details are not provided.
Dose, Safety & Label Transparency100
The amount is stated as 500 mg per serving, within the range used for acute cognitive support.
Tyrosine Dosage Adequacy
The serving provides 500 mg, within the range used for acute cognitive support.
Label Transparency and Blends
The label states 500 mg of tyrosine per serving.
Value10
The cost is high for the stated amount of tyrosine.
Price per Gram of Tyrosine
The cost per gram of stated tyrosine is high.
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Sources
Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.
- B vitamins and prevention of cognitive decline and incident dementia: a systematic review and meta-analysis.
- Folate and long-chain polyunsaturated fatty acid supplementation during pregnancy has long-term effects on the attention system of 8.5-y-old offspring: a randomized controlled trial.
- Folic acid supplementation improves cognitive function in participants with cerebral small vascular disease-related cognitive impairment: a randomized controlled trial.
- Circulating folate concentrations and the risk of mild cognitive impairment: A prospective study on the older Chinese population without folic acid fortification.
- Normal-But-Low Serum Folate Levels and the Risks for Cognitive Impairment.
- Can thiamine substitution restore cognitive function in alcohol use disorder?
- EFNS guidelines for diagnosis, therapy and prevention of Wernicke encephalopathy.
- Diagnosis and treatment of Wernicke's encephalopathy: A systematic literature review.
- Vitamin Supplementation and Dementia: A Systematic Review.
- Association between dietary vitamin B1 intake and cognitive function among older adults: a cross-sectional study.
- Combined L-carnosine and L-tyrosine supplementation as an ergogenic strategy for physical and cognitive performance under fatigue in professional football players.
- Effect of tyrosine supplementation on clinical and healthy populations under stress or cognitive demands--A review.
- Influence of nutritional tyrosine on cognition and functional connectivity in healthy old humans.
- Dietary Tyrosine Intake (FFQ) Is Associated with Locus Coeruleus, Attention and Grey Matter Maintenance: An MRI Structural Study on 398 Healthy Individuals of the Berlin Aging Study-II.
- Baseline-dependent effect of dopamine's precursor L-tyrosine on working memory gating but not updating.
- Relationship between vitamin B12 levels and motor development: A systematic review.
- Vitamin B12 supplementation improves cognitive function in middle aged and elderly patients with cognitive impairment.
- Structural and Functional Brain Changes Associated with Vitamin B12 Deficiency using Magnetic Resonance Imaging: A Systematic Review and Meta-analysis.
- Maternal vitamin B12, vitamin D, and folic acid status during pregnancy and child neurodevelopment: a systematic review.
- Higher vitamin B12 from mid- to late life is related to slower rates of cognitive decline.