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.

Reduce bleeding tendency

What this outcome means

Bleeding tendency describes how easily you bruise or bleed, whether cuts take longer to close or marks appear after minor knocks, reflecting how readily your blood forms a stable clot. On DoseRank it maps to a defined health outcome built from human studies on clotting time, platelet function, and bruising frequency – data sourced from open sources and specialized resources. DoseRank is not medical advice.

Who it's for

Bruises easilyMarks that show up after bumps you barely noticed.

Slow to clotSmall cuts and nosebleeds that take a while to stop.

Family clotting historyAn inherited pattern of easy bruising or prolonged bleeding.

Stack buildersAlready taking supplements such as Vitamin K1 (Phylloquinone) and want the dose right.

Evidence level

92Strong

Vitamin K1 (Phylloquinone) – has strong public evidence. DoseRank looks at both evidence quality and formula fit. A DoseFit Score of 67 means this product's ingredient forms and doses are close to what was used in the studies behind this ranking - DoseRank weights each product ingredient.

Best ingredients

Vitamin K1 (Phylloquinone) is the best supported ingredient signal for this outcome.

Dose partly matchedDoseFit 67

Scores reward products dosed inside or above the studied range, not just the right ingredient. Examples: In range: Vitamin K1 (Phylloquinone) 1000 mcg vs 1000-10000 mcg.

Processed

3.3k

Available

3.3k

Ingredients

Brands

304

Coverage

100%

How to read the scores

What every metric means

Each score is 0–100. Higher is better for every metric below.

CompositeThe overall DoseRank score — a weighted blend of clinical strength, evidence, dose fit, trust and value.Higher is better

ClinicalHow strongly the formula's ingredients and doses match what clinical studies used for this outcome.Higher is better

EvidenceHow much published human research backs the formula's key ingredients for this outcome — both how many studies exist and how strong they are.Higher is better

ValueHow the price per serving compares with similar products for this outcome — 50 is the typical price, higher means better value for your money.Higher is better

TrustHow well customers rate this product, with extra weight given to ratings backed by a large number of reviews.Higher is better

PopularityHow strongly this product sells compared with the other ranked products for this outcome.Higher is better

This legend covers the scores on this page — for data sources, scoring weights, and limits, read the full methodology →

Not sure which is right for you?

Answer a few questions about your goals, habits, stack, and budget. Then, DoseRank will find the products that best match your needs based on your answers. It's free and only takes 60 seconds! No account is required.

Take 60-sec quiz

Get a personal report

A saved, shareable breakdown: your matched products, dose math, interaction flags to discuss with a clinician, and a price-tracked stack you can revisit.

Questions

Frequently asked

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.

Reduce bleeding tendency

What this outcome means

Who it's for

Bruises easilyMarks that show up after bumps you barely noticed.

Slow to clotSmall cuts and nosebleeds that take a while to stop.

Family clotting historyAn inherited pattern of easy bruising or prolonged bleeding.

Stack buildersAlready taking supplements such as Vitamin K1 (Phylloquinone) and want the dose right.

Evidence level

92Strong

Best ingredients

Vitamin K1 (Phylloquinone) is the best supported ingredient signal for this outcome.

Dose partly matchedDoseFit 67

Scores reward products dosed inside or above the studied range, not just the right ingredient. Examples: In range: Vitamin K1 (Phylloquinone) 1000 mcg vs 1000-10000 mcg.

Processed

3.3k

Available

3.3k

Ingredients

Brands

304

Coverage

100%

Relevant ingredients

Which ingredient types matter for bleeding tendencyOpen to see which ingredient types matter for bleeding tendency

2.1k products across 2 ingredient types — open to filter the ranking.

Use types to filter ranked products

Vitamins

1.9k products

Essential micronutrients the body can't make in sufficient amounts. Fat-soluble ones (A, D, E, K) store up; water-soluble ones need regular topping-up.

Typical: ,

Botanicals/Herbal Extracts

168 products

Concentrated plant and herbal extracts standardized to actives. Potency depends on the extract ratio and marker content, not raw weight.

Typical: ,

Top decision cards

Best products for bleeding tendency

Ranking by · Composite outcome score

Best overall — the composite outcome score.

Top pick · DoseRank

Why this ranks #1 for bleeding tendency

Codeage, A, D, K Vitamins+, 180 Vegetable Capsules

Codeage$0.22 / serving4.8 · 1,144Available now

Also helps with

Vitamin K status

Arterial stiffness

Bone turnover markers

Why this ranks here

Evidence fitVitamin K1 (Phylloquinone) is the strongest evidence signal for this outcome.
Dose fitVitamin K1 (Phylloquinone) at 1000 mcg lands inside the studied 1000-10000 mcg window.
Price / serving$0.22 per serving — high price tier for this outcome.
AvailabilityIn stock across major retailers; 99% availability confidence.
TrustSolid trust signals from buyer ratings, with room to grow.

The numbers

1000 mcgIn rangeinside the studied 1000-10000 mcg window

900 mcg

125 mcg

900 mcg

Compare top 3 Product data Open at retailer

The rest of the ranking · DoseRank

Top 10 ranked products

Thorne, Vitamin K, 60 Capsules

ThorneClinical88Dose fit67Popularity87$0.47/ serving

Nature's Life, Revitalizing Vitamin K, 1,000 mcg, 50 VegCaps

Nature's LifeClinical88Dose fit67Popularity30$0.18/ serving

NaturesPlus, Pro Super K Complex, 60 Capsules

NaturesPlusClinical88Dose fit68Popularity30$0.29/ serving

Designer Wellness, Designer Whey®, Meal Replacement Protein Powder, Milk Chocolate, 1.72 lb (783 g)

Designer WellnessClinical89Dose fit93Popularity30$2.51/ serving

Designer Wellness, Designer Whey®, Meal Replacement Protein Powder, Vanilla Bean, 1.72 lb (783 g)

Designer WellnessClinical89Dose fit93Popularity30$2.51/ serving

Jarrow Formulas, K-Right, 60 Softgels

Jarrow FormulasClinical21Dose fit4Popularity45$0.63/ serving

Carlson, K Complete, 90 Soft Gels

CarlsonClinical21Dose fit4Popularity30$0.45/ serving

Pure Encapsulations, Synergy K, 120 Capsules

Pure EncapsulationsClinical21Dose fit4Popularity30$0.53/ serving

Bariatric Fusion, High ADEK Multivitamin, 270 Capsules

Bariatric FusionClinical4Dose fit1Popularity30$0.58/ serving