Extra Strength Hair, Skin & Nails
100/100
This product looks safe
- No ingredients exceed tolerable upper intake levels
- 62% of ingredients have research evidence
A
Label Compliance Grade
Product Label
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Label Data
3 Softgel(s)
Serving Size
40
Servings
Other Combinations
Product Type
62%
Evidence Coverage
Supplement Facts — Evidence Check
Vitamin A
5000 IU
(100% DV)
Vitamin C
90 mg
(150% DV)
2000 IU
(500% DV)
📊 3.3× RDA — above typical dose (UL: 0.1 mg)
📚 604 studies (Tier A: 16, B: 251)
30 IU
(100% DV)
✅ 1.3× RDA — within safe limits
📚 177 studies (Tier A: 3, B: 90)
5 mg
(333% DV)
📊 4.2× RDA — above typical dose
📚 76 studies (Tier A: 0, B: 33)
5 mg
(294% DV)
📊 3.8× RDA — above typical dose
📚 12 studies (Tier A: 0, B: 1)
25 mg
(125% DV)
✅ 1.8× RDA — within safe limits
📚 193 studies (Tier A: 5, B: 63)
5 mg
(250% DV)
📊 3.8× RDA — above typical dose (UL: 100 mg)
📚 113 studies (Tier A: 3, B: 35)
400 mcg
(100% DV)
✅ Within RDA (1.0× RDA of 0.4 mg)
📚 225 studies (Tier A: 10, B: 105)
8 mcg
(133% DV)
📊 3.3× RDA — above typical dose
📚 138 studies (Tier A: 1, B: 44)
5000 mcg
(1667% DV)
📊 166.7× RDA — above typical dose
📚 26 studies (Tier A: 0, B: 11)
15 mg
(150% DV)
✅ 3.0× RDA — within safe limits
📚 1 studies — no high-quality reviews
7.5 mg
(50% DV)
✅ Within RDA (0.7× RDA of 11 mg)
📚 258 studies (Tier A: 6, B: 134)
12.5 mcg
(18% DV)
✅ Within RDA (0.2× RDA of 0.055 mg)
📚 172 studies (Tier A: 0, B: 67)
Argan Oil
25 mg
10 mg
📊 Market median: 500.0mg (9 products)
Horsetail
3 mg
60 mg
📊 Market median: 20.0mg (931 products)
📚 233 studies (Tier A: 1, B: 90)
1 mg
📊 Market median: 100.0mg (173 products)
30 mg
📊 Market median: 108.0mg (8 products)
📚 9 studies (Tier A: 0, B: 4)
extra virgin organic Coconut Oil
50 mg
Other Ingredients
Soybean Oil
Gelatin
Vegetable Glycerin
Soy Lecithin
Contains Less Than 2%
Label Claims — Verification
❓
Nutrient
❓
All Other
❓
Structure/Function
All Other (99% of products)
Structure/Function (76% of products)
Nutrient (58% of products)
Target Groups
Adult Female (18 - 50 Years)
Product Information
📋 Directions for Use
Suggested Use: Adults, take three softgels daily, preferably with a meal.
⚠️ Warnings & Precautions
Contains coconut, soy and argan.
Warning: Pregnant or nursing women, individuals taking medication(s) or persons who have a health condition should consult their doctor before using this product.
Discontinue use and consult your doctor if any adverse reactions occur.
Avoid this product if you are allergic to yeast.
Not intended for use by persons under the age of 18. Keep out of reach of children.
Do not use if imprinted seal under cap is broken or missing.
🧪 Formulation Notes
5000 mcg Biotin per serving
Collagen support
With Argan Oil, Coconut Oil, and Collagen
Product of Canada, China, Germany, Malaysia, Morocco, Philippines, United States
Additional Information
Store at room temperature 59 degrees - 86 degrees F (15 degrees - 30 degrees C). Keep bottle tightly closed.
Quality guaranteed
Product Details
UPC / SKU
6 81131 12533 8
DSLD Entry Date
2020-11-21
Product Type
Other Combinations
Form
Softgel Capsule
Brand
Spring Valley
DSLD ID
239836
Data Updated
2026-04-11
Research Evidence
337
Research Sources
54
Avg Quality Score
161
Meta Analysis
68
Systematic Review
51
Rct
48
Clinical Trial
2
Other
2
Regulatory Source
1
Narrative Review
1
Cochrane Review
1
Guideline
1
Openfda Safety
A
Vitamin A supplementation for preventing morbidity and mortality in children from six months to five years of age
A
Vitamin A supplementation for the prevention of morbidity and mortality in infants six months of age or less
A
Vitamin A supplementation for reducing the risk of mother-to-child transmission of HIV infection
A
Vitamin A supplements for preventing mortality, illness, and blindness in children aged under 5: systematic review and meta-analysis
A
Vitamin A supplementation for the prevention of morbidity and mortality in infants one to six months of age
A
Exercise training-induced changes in exerkine concentrations may be relevant to the metabolic control of type 2 diabetes mellitus patients: A systematic review and meta-analysis of randomized controlled trials
A
Food fortification with multiple micronutrients: impact on health outcomes in general population
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