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.

Increase energy

What this outcome means

Energy or vitality is your day-to-day sense of drive, liveliness, and having enough in the tank to do what matters. On DoseRank it maps to a defined health outcome built from human studies on validated vitality and fatigue scales, perceived energy ratings, and daytime sluggishness – data sourced from open sources and specialized resources. DoseRank is not medical advice.

Who it's for

Afternoon slumpHitting a wall mid-day when focus and drive drain away.

Running on emptyBusy lives leaving little energy left by evening.

Low-spark morningsWaking unrefreshed and slow to feel switched on.

Stack buildersAlready taking supplements such as Maca and want the dose right.

Evidence level

60Limited

Evidence score is low, which means that there is not enough data to support the effectiveness of this outcome. However, we will continue to monitor the research and update our recommendations as new information becomes available.

Thin ingredient signal

Maca is the best available ingredient signal for this outcome, but the evidence is still thin.

Dose matchedDoseFit 90

Scores reward products dosed inside or above the studied range, not just the right ingredient. Examples: Above range: Maca 3.3 g vs 1.5-3 g.

Processed

846

Available

846

Ingredients

Brands

177

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.

Increase energy

What this outcome means

Who it's for

Afternoon slumpHitting a wall mid-day when focus and drive drain away.

Running on emptyBusy lives leaving little energy left by evening.

Low-spark morningsWaking unrefreshed and slow to feel switched on.

Stack buildersAlready taking supplements such as Maca and want the dose right.

Evidence level

60Limited

Thin ingredient signal

Maca is the best available ingredient signal for this outcome, but the evidence is still thin.

Dose matchedDoseFit 90

Scores reward products dosed inside or above the studied range, not just the right ingredient. Examples: Above range: Maca 3.3 g vs 1.5-3 g.

Processed

846

Available

846

Ingredients

Brands

177

Coverage

100%

Relevant ingredients

Which ingredient types matter for energy or vitalityOpen to see which ingredient types matter for energy or vitality

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

Use types to filter ranked products

Botanicals/Herbal Extracts

170 products

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

Typical:

Antioxidants & Bioactive Compounds

21 products

Molecules that neutralize free radicals and tune cell signaling. Helpful in balance; mega-doses can blunt the body's own adaptive defenses.

Typical:

Top decision cards

Best products for energy or vitality

Ranking by · Composite outcome score

Best overall — the composite outcome score.

Top pick · DoseRank

Why this ranks #1 for energy or vitality

Gaia Herbs, Maca Powder, 8 oz (227 g)

Gaia Herbs$0.25 / serving4.6 · 212Available now

Also helps with

Libido or sexual desire

Sexual function

Menopausal symptom severity

Why this ranks here

Evidence fitEvidence is still thin for Maca.
Dose fitMaca at 3.3 g is higher than the studied 1.5-3 g window.
Price / serving$0.25 per serving — mid price tier for this outcome.
AvailabilityIn stock across major retailers; 99% availability confidence.
TrustMixed trust signals — ratings are positive but the base is limited.

The numbers

3.3 gAbove rangehigher than the studied 1.5-3 g window

Compare top 3 Product data Open at retailer

The rest of the ranking · DoseRank

Top 10 ranked products

NutraChamps, Maca, 180 Organic Capsules

NutraChampsClinical78Dose fit76Popularity45$0.30/ serving

Frontier Co-op, Organic Maca Root Powder, 16 oz (453 g)

Frontier Co-opClinical79Dose fit90Popularity30$0.93/ serving

Irwin Naturals, Concentrated Maca Root and Ashwagandha, 75 Liquid Soft-Gels

Irwin NaturalsClinical76Dose fit67Popularity45$1.29/ serving

ProHealth Longevity, NMN Pro™, Pure NMN Powder, 100 g

ProHealth LongevityClinical70Dose fit90Popularity90$0.89/ serving

California Gold Nutrition, NMN Powder, 3.18 oz (90 g)

California Gold NutritionClinical67Dose fit68Popularity95$0.23/ serving

Neurogan Health, NMN, 900 mg, 90 Capsules

Neurogan HealthClinical69Dose fit87Popularity87$0.47/ serving

ProHealth Longevity, NMN Pro™ 1000, 60 Capsules (500 mg per Capsule)

ProHealth LongevityClinical70Dose fit90Popularity98$1.95/ serving

Nutricost, NMN, 60 Capsules (250 mg per Capsule)

NutricostClinical68Dose fit74Popularity90$0.66/ serving

Nutri, NMN+, Max Strength, 60 Vegan Capsules

NutriClinical70Dose fit90Popularity90$1.30/ serving