How does DoseRank decide what ranks #1?

Each product gets a composite score blending clinical strength, evidence, dose fit, trust and value. The #1 on the DoseRank tab has the highest composite; the other tabs re-rank the same products by Value, Trust, or Popularity. Placement is never paid.

Is a higher dose always better?

No. Dose-fit rewards landing inside the range studied for the outcome — over-dosing (common with melatonin) or under-dosing both lower the score. The goal is the effective dose, not the biggest number.

What does the Value score mean?

The Value score compares a product's price per serving with clinically relevant products ranked for the same outcome. A score of 50 is the typical price; above 50 means better value than typical, while below 50 means the product costs more than typical. It is a 0–100 value signal, not a percentile.

Why is the cheapest product not #1?

Cost is only one input. The cheapest pick here is a citrate form with weaker absorption and a stock-risk flag, so it leads on Value-for-cost but trails on the composite that also weighs evidence, dose fit and availability.

Are these affiliate links?

Retailer links may be affiliate links and DoseRank may earn a commission. Rankings and placement are determined by the scoring model only — never by payment from a brand.

Is this medical advice?

No. DoseRank summarizes evidence to help you choose; it is not a substitute for a clinician, especially if you are pregnant, breastfeeding, on medication, or managing a health condition.

DOSERANKEVIDENCE-BASED SUPPLEMENTS

Improve skin hydration

DOSERANKEVIDENCE-BASED SUPPLEMENTS

Best Supplements for Skin hydration — 1896 Ranked | DOSERANK

Top decision cards

Best products for skin hydration

Ranking by · Composite outcome score

Best overall — the composite outcome score.

Top pick · DoseRank

Why this ranks #1 for skin hydration

Vitamatic, Hyaluronic Acid, High Potency, 120 Vegetable Capsules

Vitamatic$0.13 / serving4.7 · 2,539Available now

Also helps with

Skin elasticity

Skin aging signs

Dry eye symptoms

Why this ranks here

Evidence fitSodium Hyaluronate is the strongest evidence signal for this outcome.
Dose fitSodium Hyaluronate at 200 mg lands inside the studied 120-240 mg window.
Price / serving$0.13 per serving — low price tier for this outcome.
AvailabilityIn stock across major retailers; 99% availability confidence.
TrustStrong trust signals — consistently high marks from verified buyer ratings.

The numbers

200 mgIn rangeinside the studied 120-240 mg window

Compare top 3 Product data Open at retailer

The rest of the ranking · DoseRank

Top 10 ranked products

Force Factor, Hyaluronic Acid, 200 mg, 60 Vegetable Capsules

Force FactorClinical89Dose fit82Popularity91$0.13/ serving

California Gold Nutrition, Hydrolyzed Collagen Peptides, Type I & III, Unflavored, 7.05 oz (200 g)

California Gold NutritionClinical89Dose fit90Popularity98$0.41/ serving

EVLution Nutrition, Hyaluronic Acid, 200 mg, 30 Veggie Capsules

EVLution NutritionClinical89Dose fit82Popularity76$0.22/ serving

Great Lakes Wellness, Quick Dissolve Collagen Peptides, Daily Wellness, Unflavored, 7 oz (198 g)

Great Lakes WellnessClinical89Dose fit91Popularity91$0.42/ serving

Earthtone Foods, Grass Fed Collagen Peptides, 32 oz (907 g)

Earthtone FoodsClinical89Dose fit91Popularity89$0.47/ serving

Doctor's Best, Pure Collagen Types 1 and 3 Powder, 7.1 oz (200 g)

Doctor's BestClinical88Dose fit79Popularity96$0.39/ serving

Garden of Life, Grass Fed Collagen, Super Beauty, Blueberry Acai, 9.52 oz (270 g)

Garden of LifeClinical97Dose fit87Popularity30$1.51/ serving

NeoCell, Grassfed Collagen Peptides + Vitamin C & Biotin, 270 Tablets

NeoCellClinical88Dose fit78Popularity99$0.42/ serving

Youtheory, Collagen, 120 Tablets

YoutheoryClinical88Dose fit78Popularity98$0.43/ serving

Top decision cards

Best products for skin hydration

Ranking by · Composite outcome score

Best overall — the composite outcome score.

Top pick · DoseRank

Why this ranks #1 for skin hydration

Vitamatic, Hyaluronic Acid, High Potency, 120 Vegetable Capsules

Vitamatic$0.13 / serving4.7 · 2,539Available now

Also helps with

Skin elasticity

Skin aging signs

Dry eye symptoms

Why this ranks here

Evidence fitSodium Hyaluronate is the strongest evidence signal for this outcome.
Dose fitSodium Hyaluronate at 200 mg lands inside the studied 120-240 mg window.
Price / serving$0.13 per serving — low price tier for this outcome.
AvailabilityIn stock across major retailers; 99% availability confidence.
TrustStrong trust signals — consistently high marks from verified buyer ratings.

The numbers

200 mgIn rangeinside the studied 120-240 mg window

Compare top 3 Product data Open at retailer

The rest of the ranking · DoseRank

Top 10 ranked products

Force Factor, Hyaluronic Acid, 200 mg, 60 Vegetable Capsules

Force FactorClinical89Dose fit82Popularity91$0.13/ serving

California Gold Nutrition, Hydrolyzed Collagen Peptides, Type I & III, Unflavored, 7.05 oz (200 g)

California Gold NutritionClinical89Dose fit90Popularity98$0.41/ serving

EVLution Nutrition, Hyaluronic Acid, 200 mg, 30 Veggie Capsules

EVLution NutritionClinical89Dose fit82Popularity76$0.22/ serving

Great Lakes Wellness, Quick Dissolve Collagen Peptides, Daily Wellness, Unflavored, 7 oz (198 g)

Great Lakes WellnessClinical89Dose fit91Popularity91$0.42/ serving

Earthtone Foods, Grass Fed Collagen Peptides, 32 oz (907 g)

Earthtone FoodsClinical89Dose fit91Popularity89$0.47/ serving

Doctor's Best, Pure Collagen Types 1 and 3 Powder, 7.1 oz (200 g)

Doctor's BestClinical88Dose fit79Popularity96$0.39/ serving

Garden of Life, Grass Fed Collagen, Super Beauty, Blueberry Acai, 9.52 oz (270 g)

Garden of LifeClinical97Dose fit87Popularity30$1.51/ serving

NeoCell, Grassfed Collagen Peptides + Vitamin C & Biotin, 270 Tablets

NeoCellClinical88Dose fit78Popularity99$0.42/ serving

Youtheory, Collagen, 120 Tablets

YoutheoryClinical88Dose fit78Popularity98$0.43/ serving

Improve skin hydration

Improve skin hydration

Which ingredient types matter for skin hydrationOpen to see which ingredient types matter for skin hydration

Fatty Acids & Lipids

Structural & Connective Tissue Compounds

Antioxidants & Bioactive Compounds

Botanicals/Herbal Extracts

Proteins & Peptides

Best products for skin hydration

Vitamatic, Hyaluronic Acid, High Potency, 120 Vegetable Capsules

Force Factor, Hyaluronic Acid, 200 mg, 60 Vegetable Capsules

California Gold Nutrition, Hydrolyzed Collagen Peptides, Type I & III, Unflavored, 7.05 oz (200 g)

EVLution Nutrition, Hyaluronic Acid, 200 mg, 30 Veggie Capsules

Great Lakes Wellness, Quick Dissolve Collagen Peptides, Daily Wellness, Unflavored, 7 oz (198 g)

Earthtone Foods, Grass Fed Collagen Peptides, 32 oz (907 g)

Doctor's Best, Pure Collagen Types 1 and 3 Powder, 7.1 oz (200 g)

Garden of Life, Grass Fed Collagen, Super Beauty, Blueberry Acai, 9.52 oz (270 g)

NeoCell, Grassfed Collagen Peptides + Vitamin C & Biotin, 270 Tablets

Youtheory, Collagen, 120 Tablets

What every metric means

Compare the top 3, side by side

Not sure which is right for you?

Get a personal report

Frequently asked

Related outcomes

Which ingredient types matter for skin hydrationOpen to see which ingredient types matter for skin hydration

Fatty Acids & Lipids

Structural & Connective Tissue Compounds

Antioxidants & Bioactive Compounds

Botanicals/Herbal Extracts

Proteins & Peptides

Related outcomes

Compare the top 3, side by side

Best products for skin hydration

Vitamatic, Hyaluronic Acid, High Potency, 120 Vegetable Capsules

Force Factor, Hyaluronic Acid, 200 mg, 60 Vegetable Capsules

California Gold Nutrition, Hydrolyzed Collagen Peptides, Type I & III, Unflavored, 7.05 oz (200 g)

EVLution Nutrition, Hyaluronic Acid, 200 mg, 30 Veggie Capsules

Great Lakes Wellness, Quick Dissolve Collagen Peptides, Daily Wellness, Unflavored, 7 oz (198 g)

Earthtone Foods, Grass Fed Collagen Peptides, 32 oz (907 g)

Doctor's Best, Pure Collagen Types 1 and 3 Powder, 7.1 oz (200 g)

Garden of Life, Grass Fed Collagen, Super Beauty, Blueberry Acai, 9.52 oz (270 g)

NeoCell, Grassfed Collagen Peptides + Vitamin C & Biotin, 270 Tablets

Youtheory, Collagen, 120 Tablets