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Hydrolyzed Keratin

Doctor's Best
4.5
★ ★ ★ ★ ★
(1799 ratings)
Keratin 500 mg
Product Image
Score 85.0

This supplement provides a robust 500mg dose of KeraGLO Hydrolyzed Keratin, a patented and effective form, making it an excellent choice for targeted support of hair, nail, and skin health.

Quantity: 60 Veggie Cap(s)Servings size: 1 Veggie Capsule(s) (60 servings)
Selected goals:
Other goals:
Hair Health
Nail Health
Skin Health

Score 85.0

This supplement provides a robust 500mg dose of KeraGLO Hydrolyzed Keratin, a patented and effective form, making it an excellent choice for targeted support of hair, nail, and skin health.

Analysis

Doctor's Best Hydrolyzed Keratin is formulated with 500mg of KeraGLO, a patented ingredient derived from natural wool, which is solubilized and hydrolyzed to enhance bioavailability. This dosage is consistent with clinical studies demonstrating improvements in hair strength, shine, and elasticity, as well as nail integrity and skin moisture. Online reviews frequently praise this product for noticeable improvements in hair and nail quality, reflecting the efficacy of the KeraGLO. Nutritionists often recommend patented forms of keratin for better absorption and proven results. While it is a single-ingredient focused supplement (aside from a minimal amount of sodium), its strength lies in providing a potent, high-quality source of keratin, making it highly effective for its stated goals.

Pros
  • Contains 500mg of KeraGLO, a patented and clinically studied form of hydrolyzed keratin, known for its high bioavailability and efficacy.
  • The 500mg dose is a well-researched and effective amount for promoting hair strength, nail growth, and skin elasticity.
  • Positive online reviews often confirm noticeable improvements in hair and nail quality.
Cons
  • It is a single-ingredient product (plus sodium), meaning it lacks other beneficial beauty ingredients like biotin, collagen, silica, or a broad spectrum of vitamins and minerals.
  • While effective for keratin, users looking for a more comprehensive beauty formula might need to supplement with other products.
  • The price per serving, while reasonable for a patented ingredient, is higher than very basic biotin or generic keratin options.
Warnings
  • Those seeking broader beauty benefits beyond what keratin alone provides might find this product less comprehensive without additional supplementation.
$21.36($0.35 per serving)
Amazon
$ 21.36
Pure Formulas
$ 24.76
iHerb
$ 21.36
Ingredients
IngredientAmount per serving
Sodium 15 mg
KeraGLO (Keratin, Hydrolyzed) 500 mg
Gluten Free Adults 18–50
Categories
Keratin 95.0
The product's strength is its focus on a high-quality, patented, and clinically dosed 500mg of KeraGLO Hydrolyzed Keratin, making it an excellent source of effective keratin.
Goals
Hair Health 90.0
The 500mg of patented KeraGLO Keratin is highly effective for improving hair strength, shine, and reducing breakage, aligning with numerous clinical studies on this specific ingredient.
Nail Health 90.0
Keratin is the primary protein in nails, and this clinically dosed, bioavailable form significantly contributes to stronger, less brittle nails and improved growth.
Skin Health 80.0
KeraGLO has been shown to support skin health by improving elasticity and moisture content, making this product effective for general skin appearance, though not as comprehensive as formulas with collagen or hyaluronic acid.
90 Value

Keratin Hair Booster

Reserveage Nutrition
4.4
★★★★★
(2036 ratings)
Offers 500mg of Cynatine HNS Keratin, a highly effective patented form, plus 3000mcg of Biotin for a slightly higher price per serving, providing superior combined benefits for hair and nails.
80 Value

Clincally Advanced Hair Skin & Nails

NOW Solutions
4.6
★★★★★
(2500 ratings)
For a comparable price per serving, this alternative includes 500mg of Cynatine HNS Keratin along with MSM, hyaluronic acid, and a good range of B vitamins, offering more comprehensive benefits.
90 Value

Hair Skin & Nails Collagen Plus Formula

Life Extension
4.7
★★★★★
(7070 ratings)
While a higher price per serving, the inclusion of 500mg Cynatine HNS Keratin, 2500mg Verisol Collagen Peptides, and Biotin makes this an exceptionally good value for comprehensive beauty support across multiple modalities.
90 Performance

Hair Skin & Nails Collagen Plus Formula

Life Extension
4.7
★★★★★
(7070 ratings)
This product offers a more comprehensive beauty approach by combining 500mg of Cynatine HNS Keratin with 2500mg of Verisol Collagen Peptides and Biotin, addressing hair, skin, and nails more broadly and synergistically.
90 Performance

Type l ll & lll Collagen Keratin with Alpha Lipoic Acid & Hyaluronic Acid

Solaray
4.6
★★★★★
(540 ratings)
Provides 500mg of solubilized keratin, alongside a substantial 500mg of mixed collagen types, hyaluronic acid, and alpha lipoic acid, creating a highly comprehensive and potent formula for overall beauty.
80 Performance

Clincally Advanced Hair Skin & Nails

NOW Solutions
4.6
★★★★★
(2500 ratings)
Offers 500mg of Cynatine HNS, MSM, Hyaluronic Acid, and a broad spectrum of B vitamins, presenting a well-rounded and effective formula that goes beyond just keratin for beauty support.
65 Budget

Biotin 10000 mcg Plus Keratin 100 mg

Mason Natural
4.7
★★★★★
(784 ratings)
While providing a lower dose of generic keratin, it is significantly cheaper per serving and includes a high dose of biotin, offering a budget-friendly option for some hair and nail support.
60 Budget

Hair Ultra Softgels

OLLY
4.3
★★★★★
(5450 ratings)
Offers a combination of 150mg Keratin and 3000mcg Biotin at a lower price per serving, providing a more comprehensive (albeit less potent in keratin) and more affordable alternative.
40 Budget

Keratin 50 mg

Swanson
4.5
★★★★★
(800 ratings)
This is the cheapest alternative per serving available, providing a very basic and low dose of generic keratin for those on an extremely tight budget.
90 Value

Keratin Hair Booster

Reserveage Nutrition
4.4
★★★★★
(2036 ratings)
Offers 500mg of Cynatine HNS Keratin, a highly effective patented form, plus 3000mcg of Biotin for a slightly higher price per serving, providing superior combined benefits for hair and nails.
80 Value

Clincally Advanced Hair Skin & Nails

NOW Solutions
4.6
★★★★★
(2500 ratings)
For a comparable price per serving, this alternative includes 500mg of Cynatine HNS Keratin along with MSM, hyaluronic acid, and a good range of B vitamins, offering more comprehensive benefits.
90 Value

Hair Skin & Nails Collagen Plus Formula

Life Extension
4.7
★★★★★
(7070 ratings)
While a higher price per serving, the inclusion of 500mg Cynatine HNS Keratin, 2500mg Verisol Collagen Peptides, and Biotin makes this an exceptionally good value for comprehensive beauty support across multiple modalities.
90 Performance

Hair Skin & Nails Collagen Plus Formula

Life Extension
4.7
★★★★★
(7070 ratings)
This product offers a more comprehensive beauty approach by combining 500mg of Cynatine HNS Keratin with 2500mg of Verisol Collagen Peptides and Biotin, addressing hair, skin, and nails more broadly and synergistically.
90 Performance

Type l ll & lll Collagen Keratin with Alpha Lipoic Acid & Hyaluronic Acid

Solaray
4.6
★★★★★
(540 ratings)
Provides 500mg of solubilized keratin, alongside a substantial 500mg of mixed collagen types, hyaluronic acid, and alpha lipoic acid, creating a highly comprehensive and potent formula for overall beauty.
80 Performance

Clincally Advanced Hair Skin & Nails

NOW Solutions
4.6
★★★★★
(2500 ratings)
Offers 500mg of Cynatine HNS, MSM, Hyaluronic Acid, and a broad spectrum of B vitamins, presenting a well-rounded and effective formula that goes beyond just keratin for beauty support.