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Hydrolyzed Keratin

Doctor's Best
4.5
★ ★ ★ ★ ★
(1905 ratings)
Keratin 500 mg
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Score97

A high-potency, bioavailable keratin supplement for advanced hair and nail strength.

How scoring works
Quantity:60 Veggie Cap(s) • (60 servings)
Goals:
Nail Health
Hair Health

Score 97

A high-potency, bioavailable keratin supplement for advanced hair and nail strength.

How scoring works
$21.36($0.35 per serving)
Vitacost
$ 26.55
Amazon
$ 24.05
Pure Formulas
$ 24.76
iHerb
$ 24.14
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Analysis

This supplement provides 500mg of KeraGLO hydrolyzed keratin, which is a clinical dose designed for maximum results. Hydrolyzed keratin is broken down so your body can easily absorb it and send it to your hair and nails where it's needed most. This is one of the most potent keratin-only products available.

By supplementing with the literal building blocks of your hair and nails, you can support their strength and thickness from the inside out. The veggie caps are small and very convenient to add to your daily routine. It is a highly efficient choice for anyone prioritizing their structural protein intake.

Pros

  • Uses clinically-studied KeraGLO keratin
  • High 500mg dose per serving
  • Hydrolyzed for superior absorption
  • Veggie capsules with zero fillers

Cons

  • More expensive than basic keratin
  • Focuses only on keratin protein
  • Sourced from animal products

Warnings

  • Consult a professional if taking medication
  • Store in a cool, dry place

Nutrient quality

99 Highest impact

The use of 500 mg of KeraGLO provides a full clinical dose of high-quality keratin. Hydrolyzed proteins are notably more bioavailable than generic forms, ensuring the amino acids are effectively utilized.

Ingredient transparency

99 Highest impact

The label is exceptionally clear, specifying the branded form and precise dosage of the active ingredient. Consumer transparency is high, allowing for an easy evaluation of the supplement's potency.

Customer satisfaction

92 Highest impact

Strong ratings and a high review count indicate that users find this product effective for its intended purposes. Feedback suggests a consistent experience across many different consumers.

Value for money

96 Highest impact

The cost per serving is highly reasonable given the clinical dosage of a branded, bioavailable ingredient. This product offers some of the best value for targeted keratin supplementation.

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Goals

Impact
Highest effect
A+ Goal FitA+ Strength of SupportC+ CoverageA+ Formula Quality

This formulation provides hydrolyzed keratin, which serves as the primary structural protein for the nail plate. The use of a clinically studied branded form ensures better absorption compared to standard protein sources.

Supplementing with direct building blocks may contribute to the hardness and resilience of the nails. The 500 mg dose is well-aligned with quantities used in research to support keratinized tissue health.

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Impact
Highest effect
A Goal FitA+ Strength of SupportD+ CoverageA+ Formula Quality

KeraGLO hydrolyzed keratin provides 500mg of the primary structural protein that makes up the hair shaft. This clinically-studied form is specifically processed to maximize absorption and direct utilization by the hair follicles.

Supplementing with the literal building blocks of hair appears well-aligned for those aiming to improve shaft strength and reduce breakage. This targeted approach may contribute to noticeably thicker and more resilient hair over time.

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Ingredients

IngredientAmount per serving
Sodium
15 mg
KeraGLO (Keratin, Hydrolyzed)
500 mg
Gluten Free Adults 18–50
Report overview
A+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value
This high-potency supplement uses the trademarked KeraGLO form of hydrolyzed keratin at a full clinical dose. It is a top-tier choice for structural health due to its excellent absorption and affordable price.
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