Hair, Skin & Nails Formula
8 established essential nutrientsGraded on the nutrient adequacy of 8 labeled ingredients.
85out of 100Grade A
Research evidence score
Graded on 8 established essential nutrients · led by Retinol
How the ingredients work together
Known interactions from published nutrition research — separate from the evidence grade.
88 of 8 nutrients at a meaningful dose (≥20% Daily Value).
Vitamin C + Vitamin EWork together
Vitamin C regenerates oxidized vitamin E, recycling its antioxidant capacity.
Ingredient breakdown
A
RetinolSupports vision and immune function
Research: Established essential nutrientDaily Value: 167%Dose: 5000 IUEvidence strength: Established nutrient — this product provides a meaningful dose
A
Vitamin CSupports immune function and antioxidant defense
Research: Established essential nutrientDaily Value: 133%Dose: 120 mgEvidence strength: Established nutrient — this product provides a meaningful dose
B
Vitamin D3Supports bone health and immune function
Research: Established essential nutrientDaily Value: 25%Dose: 200 IUEvidence strength: Established nutrient — a solid dose in this product
A
Vitamin EProtects against oxidative damage
Research: Established essential nutrientDaily Value: 134%Dose: 30 IUEvidence strength: Established nutrient — this product provides a meaningful dose
A
ThiamineSupports energy metabolism and nerve function
Research: Established essential nutrientDaily Value: 125%Dose: 1.5 mgEvidence strength: Established nutrient — this product provides a meaningful dose
A
RiboflavinSupports cellular energy production and antioxidant defense
Research: Established essential nutrientDaily Value: 131%Dose: 1.7 mgEvidence strength: Established nutrient — this product provides a meaningful dose
A
NiacinSupports cholesterol metabolism and cellular energy
Research: Established essential nutrientDaily Value: 125%Dose: 20 mgEvidence strength: Established nutrient — this product provides a meaningful dose
A
FolateSupports DNA synthesis and neural tube development
Research: Established essential nutrientDaily Value: 50%Dose: 200 mcgEvidence strength: Established nutrient — this product provides a meaningful dose
This summary describes only the ingredients and the research behind them — it is not a judgment of the product or its marketing. Grades reflect the weight of published evidence cross-referenced against 350M+ research papers. How we grade →
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