BioStacks
Nature's Bounty Optimal Solutions
Extra Strength Hair, Skin & Nails
Capsule · 3 Softgels · 40 servings
Best for
Ingredients (23)
Biotin
100%Dose
5000 mcg
Target
1000–5000 mcg
Form
—
Niacin
100%Dose
25 mg
Target
25–500 mg
Form
Standard
Vitamin A
100%Dose
1500 mcg
Target
700–1500 mcg
Form
Standard
Manganese
100%Dose
5 mg
Target
1.8–5 mg
Form
Standard
Vitamin D
80%Dose
800 IU
Target
1000–5000 IU
Form
Premium
Nutrition
Calories, macros & sodium.
- Calories15 Calorie(s)
- Total Fat1 Gram(s)
Other Ingredients (4)
Soy LecithinEmulsifier
Widely used emulsifier derived from soybeans
GelatinCapsule
Protein derived from collagen, used in traditional capsule shells
Vegetable OilCarrier
Edible oils used as carriers in softgels and as processing aids
GlycerinHumectant
Sweet-tasting liquid used in soft capsules and liquids
How to Take It
Take it anytime
No evidence a formula this broad works better at any particular hour. Take it with a meal containing fat — the vitamins A, D and E in it absorb poorly without one.
With a meal containing fat
Space it a couple of hours from Iron and Calcium
On the label
Directions: For adults, take three (3) softgels daily, preferably with a meal.
General guidance based on the ingredients, not a substitute for the label or your doctor.
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Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).
This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.
The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.