Everything DoseRank tracks on the hair care shelf — Docosahexaenoic Acid (DHA). The category itself is never ranked: 480 products get scored the moment you say what you want them to do.
How to read the scores
This legend covers the scores on this page — for data sources, scoring weights, and limits, read the full methodology →
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.
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
Each product gets a composite score blending clinical strength, evidence, dose fit, trust and value — computed for the goal you picked, across this category's products. 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.
Start with a goal, not a brand
Browsing hair care supplements without a goal makes no sense — different products do different jobs, and “best” flips depending on which job you're hiring for. These are the 45 health outcomes that matter for this category. Pick yours, and the full evidence-ranked shelf loads for that goal alone.
Omega-3 indexRed blood cell EPA+DHA content reflecting omega-3 status.54 rankedStrong
C-reactive proteinAcute-phase inflammatory marker.83 rankedStrong
Age-related macular degeneration progressionWorsening retinal degeneration affecting central vision.87 rankedStrong
MemoryAbility to encode, store, and retrieve information.102 rankedStrong
TriglyceridesCirculating triglyceride concentration.118 rankedStrong
Wrinkle severityDegree of visible skin wrinkling.32 rankedStrong
Eye strainVisual fatigue or discomfort from eye use.32 rankedModerate-strong
Major adverse cardiovascular eventsComposite of serious cardiac outcomes such as heart attack, stroke, or death.49 rankedStrong
ThermogenesisHeat production and metabolic energy expenditure.169 rankedStrong
PCOS symptom burdenClinical burden of polycystic ovary syndrome symptoms.42 rankedStrong
Resting energy expenditureCalories burned at rest; marker of basal metabolism.168 rankedStrong
Cognitive functionOverall thinking ability including memory, attention, and processing.165 rankedStrong
Bone mineral densityMeasure of bone strength and mineralization.160 rankedStrong
Skin hydrationMoisture content or hydration of the skin.47 rankedStrong
Vitamin D statusBiochemical sufficiency of vitamin D.172 rankedStrongNothing is ranked yet — the shelf stays locked until you pick a goal.
No goal, no ranking.
A “best hair care supplement” list without a goal would be marketing, not evidence. Pick what you want to improve and DoseRank scores all 480 products against that goal's trials.