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 depressive symptoms

What this outcome means

Depressive symptoms cover persistent low mood, loss of interest in things you used to enjoy, and the heavy, flat feeling that colors everyday life. On DoseRank it maps to a defined health outcome built from human studies on validated depression rating scales, mood severity scores, and anhedonia measures – data sourced from open sources and specialized resources. DoseRank is not medical advice.

Who it's for

Persistent low moodA flat, heavy feeling that lingers most days for weeks.

Lost interestActivities and people that once felt rewarding now leave you indifferent.

Seasonal dipsMood that sinks with darker months or shorter daylight hours.

Stack buildersAlready taking supplements such as L-Methylfolate or Saffron Extract and want the dose right.

Evidence level

92Strong

L-Methylfolate and Saffron Extract – have strong public evidence. DoseRank looks at both evidence quality and formula fit. A DoseFit Score of 79 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

L-Methylfolate and Saffron Extract are the best supported ingredient signals for this outcome.

Dose matchedDoseFit 79

Scores reward products dosed inside or above the studied range, not just the right ingredient. Examples: In range: L-Methylfolate 15 mg vs 7.5-15 mg, Saffron Extract 30 mg vs 30-50 mg.

Processed

Available

Ingredients

Brands

582

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?

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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 depressive symptoms

What this outcome means

Who it's for

Persistent low moodA flat, heavy feeling that lingers most days for weeks.

Lost interestActivities and people that once felt rewarding now leave you indifferent.

Seasonal dipsMood that sinks with darker months or shorter daylight hours.

Stack buildersAlready taking supplements such as L-Methylfolate or Saffron Extract and want the dose right.

Evidence level

92Strong

Best ingredients

L-Methylfolate and Saffron Extract are the best supported ingredient signals for this outcome.

Dose matchedDoseFit 79

Scores reward products dosed inside or above the studied range, not just the right ingredient. Examples: In range: L-Methylfolate 15 mg vs 7.5-15 mg, Saffron Extract 30 mg vs 30-50 mg.

Processed

Available

Ingredients

Brands

582

Coverage

100%

Relevant ingredients

Which ingredient types matter for depressive symptomsOpen to see which ingredient types matter for depressive symptoms

2.7k products across 4 ingredient types — open to filter the ranking.

Use types to filter ranked products

Amino Acids & Derivatives

934 products

The building blocks of protein, taken singly for targeted effects – leucine for muscle, theanine for calm. Free-form versions absorb fast on an empty stomach.

Typical: ,

Fatty Acids & Lipids

964 products

Dietary fats including omega-3s and structural lipids. Look at the active EPA/DHA amounts and freshness, since oils oxidize and turn rancid.

Typical:

Vitamins

797 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: , ,

Minerals & Trace Elements

35 products

Inorganic nutrients from calcium to zinc. The chemical form drives absorption – chelates and citrates usually beat cheap oxides.

Typical:

Top decision cards

Best products for depressive symptoms

Ranking by · Composite outcome score

Best overall — the composite outcome score.

Top pick · DoseRank

Why this ranks #1 for depressive symptoms

Rainbow Light, L-Methylfolate, 60 Vegan Capsules

Rainbow Light$0.59 / serving5.0 · 1Available now

Also helps with

Folate status

Homocysteine

Congenital anomaly

Why this ranks here

Evidence fitL-Methylfolate and Saffron Extract are the strongest evidence signals for this outcome.
Dose fit2 of 2 dosed ingredients land in the studied range. L-Methylfolate at 15 mg lands inside the studied 7.5-15 mg window.
Price / serving$0.59 per serving — high price tier for this outcome.
AvailabilityIn stock across major retailers; 99% availability confidence.
TrustLimited trust signals so far for this listing.

The numbers

15 mgIn rangeinside the studied 7.5-15 mg window

30 mgIn rangeinside the studied 30-50 mg window

1000 mcg

Compare top 3 Product data Open at retailer

The rest of the ranking · DoseRank

Top 10 ranked products

Nutricost, Saffron, 88.5 mg , 240 Capsules

NutricostClinical85Dose fit92Popularity95$0.07/ serving

Nutricost, L-Methylfolate, 15 mg, 120 Capsules

NutricostClinical87Dose fit90Popularity87$0.15/ serving

Viva Naturals, Omega-3 Fish Oil, 2,500 mg, 180 Softgels

Viva NaturalsClinical87Dose fit78Popularity97$0.56/ serving

Micro Ingredients, Omega-3 Fish Oil, Lemon, 240 Softgels

Micro IngredientsClinical86Dose fit71Popularity95$0.38/ serving

Natural Factors, RxOmega-3 Ultra Strength, 150 Softgels (1,075 mg per Softgel)

Natural FactorsClinical87Dose fit75Popularity87$0.59/ serving

Natural Factors, RxOmega-3 Ultra Strength with Vitamin D3, 150 Softgels

Natural FactorsClinical88Dose fit73Popularity72$0.60/ serving

Nutricost, Omega-3, 120 Softgels

NutricostClinical86Dose fit71Popularity97$0.47/ serving

Micro Ingredients, Omega-3 Fish Oil, Triple Strength, Lemon, 120 Softgels (1,400 mg per Softgel)

Micro IngredientsClinical86Dose fit71Popularity87$0.54/ serving

Nutricost, Omega-3, 90 Softgels (833 mg per Softgel)

NutricostClinical86Dose fit71Popularity77$0.43/ serving